ボイスコイルアクチュエータ


  • Linear Voice Coil Actuators
  • Maximum Travel Ranges from 6.4 mm to 63.5 mm
  • High Purity of Motion

VC250/M

Voice Coil Actuator,
25.4 mm Travel

Zero Travel Position

Maximum Travel

VC063

Voice Coil Actuator,
1/4" Travel

VC625

Voice Coil Actuator,
2.5" Travel

Coil Assembly

Magnet Assembly

Related Items


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Voice Coil Fronts
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Figure 1.1  コイルアセンブリの上部には、他の部品を取り付けるためのSMネジとネジ穴が付いています。詳しくはTable G1.1をご参照ください。

特長

  • リニアボイスコイルモータ
  • ダイレクトドライブ方式
  • 最大移動量63.5 mm
  • 電流駆動方式
  • 高速、精密移動
  • 応答性の高い加速・減速
  • SMネジ付きコイルアセンブリ

ボイスコイルアクチュエータは、高速あるいは高加速度での位置決めを必要とする用途向けに設計されています。これらのリニアアクチュエータはコイルアセンブリと磁石アセンブリから構成され、可動部と固定部の間に直線的に動く力を非接触で供給します。ボイスコイルは電気信号を磁場を介して直線的に動くための力に変換するため、優れた動作特性を実現できます。これは、ベルトやギアなどのドライブトレーンを別途必要とするDCモータと比較して大きく異なる点です。ボイスコイルに位置センサを組み合わせると、高速で正確、かつ再現性にも優れた運動を実現できます。モータの動作方向は電圧の極性で決まります。赤のワイヤを正電圧に接続して電流を流すと、磁石アセンブリはアクチュエータが伸長する方向に移動します。発生する力は、アクチュエータの位置にも依存しますが、電流に力定数(Force Constant)を乗じることで概算できます(詳細はTable G1.1のグラフをクリックしてご覧ください)。

すべてのボイスコイルアセンブリにはSM外ネジが付いており、当社の固定式光学マウントやレンズチューブに取り付けることができます。磁石アセンブリがコイルに接触することなく浮遊するように、ボイスコイルアクチュエータの両端をしっかり取り付ける必要があります。ミリ規格のSM05外ネジ付きのコイル、VC063B/M、およびVC125B/Mの中央にはM3取付け穴があり、それらの磁石アセンブリの中央にはM3取付け穴(止り穴)があります。コイルVC380/Mの中央にはM3取付け穴があり、その磁石アセンブリの中央にはM6取付け穴(止り穴)があります。ミリ規格のSM1およびSM2ネジ付きボイスコイルの磁石アセンブリ中央にはM6取付け穴(止り穴)があり、それらのコイルアセンブリには中央のØ6.4 mm貫通穴を挟んで2つのM4取付け穴があります。これらの取付け穴と当社の直角ブラケットを使用すれば、ボイスコイルのどちらかの端を光学テーブルやステージの可動部に固定することができます。

ボイスコイルアクチュエータを推奨する最大移動範囲を超えて移動させると、磁石アセンブリの位置がコイルアセンブリから遠くなりすぎて適切な磁気的相互作用が維持できなくなります。そうなった場合は、アクチュエータは期待するようには動作しなくなるので、ボイスコイルを手動で縮める必要があります。

ステンレススチール製筐体の中央にあるタップ穴に鉄製のものなどを取付けないでください。永久磁石の位置がずれて、アセンブリの修理が必要になる場合があります。ボイスコイルアクチュエータのネジ穴の最大深さは、Table G1.1のInfoアイコンをクリックして「Mounting Features」欄を開くとご覧いただけます。磁石が外れてしまった場合は、当社までご連絡ください。

ボイスコイルアクチュエータの動作仕様

当社のボイスコイルアクチュエータは、定電流/電圧可変または定電圧/電流可変のどちらかで動作させます。Table 2.1と2.2では、コイルの動作温度とデューティサイクルが与えられたときの電気的な動作仕様をご覧いただけます。定電流での動作仕様は、IConstant @ VMaxの形式で最大電圧値が示されています。定電圧での動作仕様は、同様にVConstant @ IMaxの形式で示されています。コイルの温度変化は加速度の直線性に影響します。そのため、デューティサイクル100%においてコイルの動作温度が平衡状態に到達するまでの時間を示すグラフを提示しています。それらは各ボイスコイルアクチュエータの型番横の青いInfoアイコン(info)からご覧いただけます。

Table 2.1  Constant Current Operating Specificationsa
Item #VC063(/M)VC063B(/M)VC125(/M)VC125B(/M)VC125C(/M)VC190(/M)VC250(/M)VC380(/M)VC500(/M)VC625(/M)
Coil Operating Temperatureb,cDuty Cycle
60 °C10%2.15 A
@ 4.95 V		2.55 A
@ 5.10 V		1.80 A
@ 7.10 V		2.30 A
@ 7.10 V		2.45 A
@ 18.40 V		1.80 A
@ 9.35 V		2.10 A
@ 14.30 V		1.60 A
@ 11.85 V		1.75 A
@ 18.45 V		1.85 A
@ 19.75 V
50%1.00 A
@ 2.35 V		1.59 A
@ 3.15 V		0.95 A
@ 3.55 V		1.15 A
@ 3.65 V		1.30 A
@ 9.75 V		0.90 A
@ 4.95 V		1.05 A
@ 7.30 V		0.85 A
@ 6.30 V		0.90 A
@ 9.45 V		0.95 A
@ 10.25 V
100%0.80 A
@ 1.85 V		1.15 A
@ 2.50 V		0.70 A
@ 2.65 V		0.95 A
@ 3.00 V		0.85 A
@ 6.30 V		0.65 A
@ 3.50 V		0.75 A
@ 5.35 V		0.70 A
@ 5.05 V		0.65 A
@ 6.90 V		0.70 A
@ 7.40 V
100 °C10%2.95 A
@ 8.20 V		3.90 A
@ 9.35 V		2.75 A
@ 11.85 Vd		3.60 A
@ 12.80 V		3.35 A
@ 27.80 V		2.55 A
@ 15.50 V		3.05 A
@ 24.85 Vd		2.35 A
@ 20.20 V		2.50 A
@ 30.35 Vd		2.60 A
@ 30.35 V
50%1.35 A
@ 3.60 V		2.05 A
@ 4.70 V		1.35 A
@ 5.80 V		1.85 A
@ 6.80 V		1.70 A
@ 14.00 V		1.30 A
@ 8.05 V		1.55 A
@ 12.30 V		1.20 A
@ 10.10 V		1.25 A
@ 15.10 V		1.35 A
@ 16.85 V
100%1.10 A
@ 3.05 V		1.45 A
@ 3.50 V		1.05 A
@ 4.45 V		1.35 A
@ 4.80 V		1.25 A
@ 10.45 V		0.95 A
@ 5.80 V		1.15 A
@ 9.30 V		0.90 A
@ 7.60 V		0.95 A
@ 11.40 V		0.95 A
@ 11.80 V
  • コイルを特定の動作温度とデューティサイクルで動作させたときの、｢パラメータ：定電流＠最大電圧｣の典型的な値
  • 周囲温度は22 °C
  • 温度が60 °C以上のコイルに接触すると、皮膚に重度の損傷が生じる可能性があります。永久磁石によって生成される磁場は、温度が110 °Cを超えると大幅に減少します。
  • 試験条件として制約されたため、ここには計算値を示しています。適用した理論は、実験で得られたすべてのデータとも良く整合しています。



Table 2.2  Constant Voltage Operating Specificationsa
Item #VC063(/M)VC063B(/M)VC125(/M)VC125B(/M)VC125C(/M)VC190(/M)VC250(/M)VC380(/M)VC500(/M)VC625(/M)
Coil Operating Temperatureb,cDuty Cycle
60 °C10%4.85 V
@ 2.00 Ad		7.00 V
@ 2.95 Ad		7.10 V
@ 1.85 A		7.15 V
@ 2.10 Ad		17.10 V
@ 2.30 Ad		9.30 V
@ 1.75 Ad		14.40 V
@ 2.05 Ad		13.45 V
@ 1.75 Ad		18.20 V
@ 1.75 Ad		19.95 V
@ 1.85 Ad
50%2.25 V
@ 0.90 A		3.25 V
@ 1.65 A		3.75 V
@ 1.10 A		3.80 V
@ 1.15 A		8.80 V
@ 1.15 A		5.00 V
@ 0.95 A		7.35 V
@ 1.00 A		6.25 V
@ 0.85 A		9.25 V
@ 0.85 A		10.15 V
@ 0.95 A
100%1.80 V
@ 0.75 A		2.50 V
@ 1.05 A		2.75 V
@ 0.70 A		2.80 V
@ 0.85 A		6.30 V
@ 0.85 A		3.50 V
@ 0.65 A		5.40 V
@ 0.75 A		5.00 V
@ 0.65 A		6.85 V
@ 0.65 A		7.50 V
@ 0.70 A
100 °C10%6.95 V
@ 2.50 Ad		8.90 V
@ 3.65 Ad		11.35 V
@ 2.65 Ad		12.80 V
@ 3.50 Ad		26.00 V
@ 3.15 Ad		15.55 V
@ 2.50 Ad		24.80 V
@ 3.00 Ad		19.00 V
@ 1.80 Ad		29.60 V
@ 2.45 Ad		31.60 V
@ 2.60 Ad
50%3.30 V
@ 1.15 A		4.50 V
@ 1.90 A		5.85 V
@ 1.50 A		6.65 V
@ 1.80 A		13.95 V
@ 1.70 A		8.05 V
@ 1.30 A		12.30 V
@ 1.50 A		9.55 V
@ 1.10 A		14.95 V
@ 1.20 A		16.00 V
@ 1.30 A
100%2.60 V
@ 0.95 A		3.35 V
@ 1.40 A		4.25 V
@ 1.00 A		4.80 V
@ 1.30 A		9.75 V
@ 1.20 A		5.85 V
@ 0.95 A		9.30 V
@ 1.15 A		7.15 V
@ 0.85 A		11.10 V
@ 0.90 A		11.85 V
@ 0.95 A
  • コイルを特定の動作温度とデューティサイクルで動作させたときの、｢パラメータ：定電圧＠最大電流｣の典型的な値
  • 周囲温度は22 °C
  • 温度が60 °C以上のコイルに接触すると、皮膚に重度の損傷が生じる可能性があります。永久磁石によって生成される磁場は、温度が110 °Cを超えると大幅に減少します。
  • 試験条件として制約されたため、ここには計算値を示しています。適用した理論は、実験で得られたすべてのデータとも良く整合しています。

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ネジ仕様

下記はネジの概要についての説明です。仕様や寸法の詳細については、市販のMachinery's Handbook等をご参照ください。

ネジ山の名称
ネジ山は頂点(crest)、斜面(flank)、谷(root)の3つが繰り返されることで構成されています(右図参照)。特殊な場合を除き、ネジ山は、頂点または谷の中心に垂直な線を描いたとき、両側が対称的で、同じ角度で傾斜しています。隣り合うネジ山の間の距離はネジピッチと呼ばれます。フランク角とは、ネジ軸に対して垂直な線と斜面がなす角度と定義します。別途特記のない限り、ネジ山の斜面角度は30°なので、斜面と斜面の間の角度は合計で60°となります。それぞれの名称は右の図で示されています。

ネジの外径はネジ山の頂点の径、内径はネジの谷の径となります。ほとんどのネジでは頂点や谷の先端が鋭点ではないため、外径や内径の定義には頂点や谷を丸めた値が含まれています。ピッチ径は、外径と内径のおおよその中間値となります。　

Thread Form
Thread Formはネジの特長を定義しています。世界の多くで使用されているのはISOミリネジで、国際単位系で測定されています。またアメリカではインチ単位で測定されたユニファイネジが一般的です。ユニファイネジには様々な形状がありますが、UN規格は谷の輪郭が平ら、UNR規格では丸くなります。UNやUNRに文字を追加することによりネジ山の形状が詳細に説明されます。例えば谷の輪郭が平ら(UN規格)で極細目(extremely fine)のネジはUNEFネジとなります。またユニファイネジ規格で特殊なネジはUNSネジとなります。　

Thread Series
ほとんどのネジはThread Seriesで識別されます。Thread Seriesは外径とネジ山の密度で示されます。ネジ山の密度はミリネジではネジピッチ、ユニファイネジではThreads per Inch(TPI)で規定されています。ユニファイネジの場合、1/4"-20キャップスクリュのバレルは直径が1/4インチ、ピッチは20 TPIと表されます。ミリ規格のM4 x 0.7キャップスクリュのバレルは直径が4 mm、ピッチが0.7 mmです。M4 x 0.7はよくM4に省略されています。　

Unified Thread Class Tolerancing
LocationLooseOptimalStrict
Internal1B2B3B
External1A2A3A
Metric Thread Tolerance Positions
LocationLooseOptimalStrict
Internal-GH
Externale or fgh
Metric Thread Tolerance Grades
DimensionLocationTolerance Gradesa
Minor DiameterInternal4, 5, 6, 7, 8
Major DiameterExternal4, 6, 8
Pitch DiameterInternal4, 5, 6, 7, 8
External3, 4, 5, 6, 7, 8, 9
  • 公差等級が上がると公差が大きくなります。通常の長さのはめあいでは下線が引いてある等級が使用されます。

Thread Class
ネジ山の公差と許容差は、ネジのクラス(thread class)によって示されます。ユニファイネジは英数字で識別されます。数字は1から3まであり、大きいほど公差が厳しくなります。また、Aは外ネジ、Bは内ネジを示しています。

ミリネジは、数字の3から9までの公差等級と、eからhまでの公差位置で公差が決まります。等級がそのまま公差の度合を示しており、数字が小さいほど公差が厳しくなります。位置はピッチ径からの公差の距離を示しています。またアルファベットの大文字は内ネジ、小文字は外ネジです。　

Machinery's Handbook, 29th Edition, p. 1885より(和訳):「公差域クラスは、最初にピッチ径の等級と位置が記述され、次に外ネジの場合は外径のの等級と位置、内ネジの場合は内径の等級と位置が記述されます。よって外ネジの場合は4g6g、内ネジの場合5H6Hというような表記となります。2つの等級と位置が同じの場合は、繰り返す必要がないため、4g4gの場合は4g、5H5Hの場合は5Hとなります。」

当社のSMシリーズ規格
SMシリーズ規格は、当社のレンズチューブやケージシステム部品に使用されています。下表はご用途に合ったコンポーネントを機械加工する際にご参照ください。多くのSMシリーズネジ規格は特殊ネジ(UNSネジ)で、側面角度は30°、ネジクラスは2A および2Bになっております。ただしSM30シリーズネジはミリネジで、側面角度は30°、公差は6H/6gです。当社ではCマウントやRMSネジ付きの製品もご用意しております。ネジ規格は下記をご覧ください。なお、他社製品は公差が下記ネジと異なる場合がありますのでご注意ください。こちらに掲載されていないネジの規格については当社までお問い合わせください。　

SM05 Threading: Ø1/2" Lens Tubes, 16 mm Cage Systems
External Thread, 0.535"-40.0 UNS-2AInternal Thread, 0.535"-40.0 UNS-2B
Max Major Diameter0.5340"Min Major Diameter0.5350"
Min Major Diameter0.5289"Min Pitch Diameter0.5188"
Max Pitch Diameter0.5178"Max Pitch Diameter0.5230"
Min Pitch Diameter0.5146"Min Minor Diameter (and 83.3% of Thread)0.508"
Max Minor Diameter0.5069"Max Minor Diameter (and 64.9% of Thread)0.514"
RMS Threading: Objective, Scan, and Tube Lenses
External Thread, 0.800"-36.0 UNS-2AInternal Thread, 0.800"-36.0 UNS-2B
Max Major Diameter0.7989"Min Major Diameter0.8000"
Min Major Diameter0.7934"Min Pitch Diameter0.7820"
Max Pitch Diameter0.7809"Max Pitch Diameter0.7866"
Min Pitch Diameter0.7774"Min Minor Diameter (and 83.3% of Thread)0.770"
Max Minor Diameter0.7688"Max Minor Diameter (and 64.9% of Thread)0.777"
C-Mount Threading: Machine Vision Lenses, CCD/CMOS Cameras
External Thread, 1.000"-32.0 UN-2AInternal Thread, 1.000"-32.0 UN-2B
Max Major Diameter0.9989"Min Major Diameter1.0000"
Min Major Diameter0.9929"Min Pitch Diameter0.9797"
Max Pitch Diameter0.9786"Max Pitch Diameter0.9846"
Min Pitch Diameter0.9748"Min Minor Diameter (and 83.3% of Thread)0.966"
Max Minor Diameter0.9651"Max Minor Diameter (and 64.9% of Thread)0.974"
SM1 Threading: Ø1" Lens Tubes, 30 mm Cage Systems
External Thread, 1.035"-40.0 UNS-2AInternal Thread, 1.035"-40.0 UNS-2B
Max Major Diameter1.0339"Min Major Diameter1.0350"
Min Major Diameter1.0288"Min Pitch Diameter1.0188"
Max Pitch Diameter1.0177"Max Pitch Diameter1.0234"
Min Pitch Diameter1.0142"Min Minor Diameter (and 83.3% of Thread)1.008"
Max Minor Diameter1.0068"Max Minor Diameter (and 64.9% of Thread)1.014"
SM30 Threading: Ø30 mm Lens Tubes
External Thread, M30.5 x 0.5 – 6H/6gInternal Thread, M30.5 x 0.5 – 6H/6g
Max Major Diameter30.480 mmMin Major Diameter30.500 mm
Min Major Diameter30.371 mmMin Pitch Diameter30.175 mm
Max Pitch Diameter30.155 mmMax Pitch Diameter30.302 mm
Min Pitch Diameter30.059 mmMin Minor Diameter (and 83.3% of Thread)29.959 mm
Max Minor Diameter29.938 mmMax Minor Diameter (and 64.9% of Thread)30.094 mm
SM1.5 Threading: Ø1.5" Lens Tubes
External Thread, 1.535"-40 UNS-2AInternal Thread, 1.535"-40 UNS-2B
Max Major Diameter1.5339"Min Major Diameter1.535"
Min Major Diameter1.5288"Min Pitch Diameter1.5188"
Max Pitch Diameter1.5177"Max Pitch Diameter1.5236"
Min Pitch Diameter1.5140"Min Minor Diameter (and 83.3% of Thread)1.508"
Max Minor Diameter1.5068"Max Minor Diameter (and 64.9% of Thread)1.514"
SM2 Threading: Ø2" Lens Tubes, 60 mm Cage Systems
External Thread, 2.035"-40.0 UNS-2AInternal Thread, 2.035"-40.0 UNS-2B
Max Major Diameter2.0338"Min Major Diameter2.0350"
Min Major Diameter2.0287"Min Pitch Diameter2.0188"
Max Pitch Diameter2.0176"Max Pitch Diameter2.0239"
Min Pitch Diameter2.0137"Min Minor Diameter (and 83.3% of Thread)2.008"
Max Minor Diameter2.0067"Max Minor Diameter (and 64.9% of Thread)2.014"
SM3 Threading: Ø3" Lens Tubes
External Thread, 3.035"-40.0 UNS-2AInternal Thread, 3.035"-40.0 UNS-2B
Max Major Diameter3.0337"Min Major Diameter3.0350"
Min Major Diameter3.0286"Min Pitch Diameter3.0188"
Max Pitch Diameter3.0175"Max Pitch Diameter3.0242"
Min Pitch Diameter3.0133"Min Minor Diameter (and 83.3% of Thread)3.008"
Max Minor Diameter3.0066"Max Minor Diameter (and 64.9% of Thread)3.014"
SM4 Threading: Ø4" Lens Tubes
External Thread, 4.035"-40 UNS-2AInternal Thread, 4.035"-40.0 UNS-2B
Max Major Diameter4.0337"Min Major Diameter4.0350"
Min Major Diameter4.0286"Min Pitch Diameter4.0188"
Max Pitch Diameter4.0175"Max Pitch Diameter4.0245"
Min Pitch Diameter4.0131"Min Minor Diameter (and 83.3% of Thread)4.008"
Max Minor Diameter4.0066"Max Minor Diameter (and 64.9% of Thread)4.014"

Posted Comments:
Sehwan Kim  (posted 2025-05-26 17:25:26.26)
Dear Thorlabs, I recently purchased the VC063/M voice coil actuator and am currently in the process of setting it up. I have a few questions regarding its installation and would appreciate your support. Specifically, I would like to clarify whether the coil assembly (the part with the wound wire) should be fixed in place, or whether the permanent magnet (metal housing) should be fixed instead. In our lab, we plan to attach a mirror to the moving part of the actuator for use in THz-related experiments. My questions are as follows: Is it necessary to implement a mechanical housing or structure to prevent the magnet from detaching or separating from the coil during operation? Do you have any reference examples or setup demonstrations for using this actuator? I have reviewed several user comments on the product page and noticed that your team has previously offered suggestions on suitable driver equipment. Would it be possible to receive a similar recommendation for our setup? I would appreciate a response to each of these questions. Thank you very much for your assistance.
ksosnowski  (posted 2025-06-03 12:58:51.0)
Hello Sehwan, thanks for reaching out to us. Both ends of the voice coil should be supported in order to prevent any contact with the physical coil due to the mounted optic load. We have integrated VC063/M in a flexure stage as our VCFL35. In this case, the black base of the coil is rigidly mounted, and the magnet housing is attached to the flexure mechanism to allow controlled displacement. We do not currently sell a driver for the voice coils however we have used the OPA548 amplifier from Texas Instruments along with a function generator in our development. For lower amplitude operation, you may just use a function generator, though the current limits on most devices would prevent driving the coil with a higher amplitude unless an amplifier or buffer is used. I have reached out directly to discuss your application further.
user  (posted 2025-03-05 17:12:49.397)
Dear ThorLabs, Hello, I bought your VC063/M product, recently. Could you please tell me how to drive my coil? Unfortunately, I am not familiar with circuit. So, I hope a commercial product to drive it. I also have TC300 (Heater Temperature Controller) . Is it possible to use it for driving the voice coil? Also, can I use Raspberry Pi to move my voice coil? Thank you.
jdelia  (posted 2025-03-05 03:54:12.0)
Thank you for contacting Thorlabs. We do not suggest using the TC300 to control this item. The TC300 is only intended to be used with heaters/TEC's, not voice coil actuators. I have contacted you directly via email to discuss your application and our recommended driving options.
Harrison DiAmbrosio  (posted 2025-02-12 11:59:13.147)
Hey Thorlabs! I was curious about mounting options. Is this mostly up to the customer to figure out. My teammates and myself have a VCA, but its just for a prototype, and we plan to spec out a more suitable VCA for out needs. But mounting is a big problem we've had, and want to eliminate scraping. Additionally, previously we had used a linear slide potentiometer to get positional sensing of the VCA, but it only worked on the low stroke length of out current VCA. What are commonly used sensors to quickly and accurately track the position of a VCA in motion. Thanks for your help!
cdolbashian  (posted 2025-02-20 09:12:06.0)
Thank you for reaching out to us with this inquiry! Mounting and integration is left to the end user. Our voice coils feature various standard tapped holes using imperial and metric threadings (4-40, 8-32, 1/4-20, M3, M4, M6 etc) as well as our standard optical threadings for easy integration into our optical kinematic mounts. Regarding positional sensing, while we do not have anything turnkey in our catalog for such a feature, I have contacted you directly to share some ideas regarding such an application.
user  (posted 2024-11-29 10:42:17.243)
Hello, I was wondering about how I could control the position of the voice coil actuator. Thank you!
jdelia  (posted 2024-12-02 03:09:57.0)
Thank you for contacting Thorlabs. I have reached out to you directly via email to discuss our recommendations for driving these voice coil actuators.
Hyojeong Shon  (posted 2024-07-31 15:50:35.54)
Hi, Thorlabs. Could you please give some information about its typical response time of "VC063/M", if possible? And could you also provide the information about recommended controller and Amp.? Thank you!
cdolbashian  (posted 2024-08-30 11:28:54.0)
Thank you for reaching out to us with this inquiry. This device is a purely analog inductive circuit driving a ~7gram mass. The response time would depend on your driving parameters directly. I have contacted you regarding this, as well as regarding some recommendations for controller and amplifier.
Viacheslav Slesarenko  (posted 2024-05-07 17:33:29.82)
Hi Thorlabs, We are trying to build a small testing setup consisting of two voice coils. While the VC125C/M options are very good in respect to stroke and force, we are bit lost regarding suitable motion controller and amplifier. Could you please give some recommendations? Thanks a lot!
cdolbashian  (posted 2024-05-10 03:51:57.0)
Thank you for reaching out to us with this inquiry. I have contacted you directly to discuss some basic recommendations and usage tips.
user  (posted 2024-02-29 13:22:54.4)
Hi Thorlabs, I am currently using your VC125B/M and VC380/M. I am trying to drive them with a H-Bridge motor driver (originally for a bldc motor) and want to identify the system over the current's step response. Have you done something similar which's documentation you could provide? Or do you have any other documents regarding the mathematical model or system identification that you could send me? Thank you in advance.
jpolaris  (posted 2024-03-01 06:56:44.0)
Thank you for contacting Thorlabs. I have reached out to you directly with raw force over travel data for VC125B/M and VC380/M when driven at 1 A. If you know the mass load being driven by the coil, you can use the force data along with the kinematics equations to calculation motion.
user  (posted 2023-12-04 03:26:26.747)
Hi, Could you also provide the information about controller/amp recommendations? Thanks.
cdolbashian  (posted 2023-12-11 10:46:04.0)
Thank you for reaching out to us with this inquiry. As this is a current-driven device with very low resistance, we recommend using a function generator in combination with a unity-amplifier, or using a benchtop current supply with modulation options. I have contacted you directly with some recommendations.
user  (posted 2023-11-12 21:39:05.373)
Hi, can you recommend a controller/ driver for your VCAs with current control?
jdelia  (posted 2023-11-13 02:49:03.0)
Thank you for contacting Thorlabs. I have reached out to you directly regarding controller/amp recommendations.
user  (posted 2023-08-15 16:01:29.14)
Hi, We are interested in this product to stabilize our laser by partially blocking the laser beam based the PID loop using the current reading (~100 uA) of a detector device. In this case, would you recommend having a separate current amplifier/driver? Also, could you provide a Solidworks file with a lower (2021) version? I cannot open the file as it's a future version file. Thanks a lot for your help!
ksosnowski  (posted 2023-08-30 04:16:46.0)
Thank you for reaching out to us. Common photodiode max output currents are fairly low so transimpedance amplifier can be useful to convert this to a voltage with high gain while also preserving the sensor bandwidth.  Optical feedback is one method of creating a closed-loop system with the voice coils. It would otherwise require a fairly high impedance input on any driver to reach a 5V signal swing with 100uA current, and if using the input impedance as a load directly then that will lower the RC time constant of the photodiode resulting in a lower bandwidth. Depending on the exact gain and bandwidth necessary our amplifiers like AMP120 may be a solution. I have reached out directly to discuss this application and other file versions in further detail.
user  (posted 2023-07-24 09:30:50.067)
Hello, please recommend controller/amplifier for these coils
jdelia  (posted 2023-07-24 01:12:44.0)
Thank you for contacting Thorlabs. I have reached out to you directly regarding function generator and unity amp recommendations.
Andres Gomez  (posted 2023-07-11 18:09:57.39)
Hello, I wanted to know if I can control the voice coil with a raspberry pi and with the following amplifier "15A 400W PWM Supported MOSFET Switching Module". Thank
cdolbashian  (posted 2023-07-21 03:25:23.0)
Thank you for reaching out to us with this inquiry. I have contacted you directly to share our experienced when driving these devices.
user  (posted 2023-07-12 11:32:12.54)
Dear thorlabs, Hellow, I am interested in your voice coil. I have a function generator, but don't have any current source. So, could you please recommend any current source to control your device? Do you have any dedicated voice coil controller? Thanks
cdolbashian  (posted 2023-07-21 03:25:31.0)
Thank you for reaching out to us. When we tested this device, we used OPA548 amplifier from Texas Instruments with an analog function generators as a driver in our development of this device. A similar, stable, current source should be appropriate.
user  (posted 2023-07-10 21:53:42.097)
Hello, I wanted to know if you can control l voice coil by means of a raspberry pi and current amplifiers and if not so they recommend me to control the movement. And this actuator "motor driver 810-01" if it is compatible with the voice coil. Thank you.
cdolbashian  (posted 2023-07-21 03:36:44.0)
Thank you for reaching out to us. I have contacted you directly to share the configuration we use when driving this device, as I am unsure as to what "motor driver 810-01" is referring.
user  (posted 2023-05-20 13:07:57.87)
Hello, I wanted to know what is the positioning resolution of the device? and what type of controller do you use?
cdolbashian  (posted 2023-05-26 12:05:13.0)
Thank you for reaching out to us Benjamin. This device is nominally analog, and the position of the actuator moves as a function of applied current. Depending on the quality of your current control, you will have varying quality of positional resolution.
Lee Kyesung  (posted 2023-05-15 16:41:24.14)
Is it possible to reciprocate in an axis perpendicular to the direction of gravity without contact between the moving and fixed world? Thanks
ksosnowski  (posted 2023-05-15 04:17:57.0)
Hello Lee, thanks for reaching out to Thorlabs. We have used the voice coils in this orientation before, although it does require a mount that will maintain the coil separation. Currently we have one product series VCFL35(/M) which incorporates the VC063/M voice coil into a flexure mount for scanning applications.
Alex Barker  (posted 2023-04-04 13:14:35.53)
Hi there, I can't open the solidworks files for the voice coils as the version is newer than my version of solidworks. Do you have solidworks part files (*.sldprt) for VC250 and VC500 for solidworks version 2019 SP5.0 or earlier? Thanks very much -Alex
cdolbashian  (posted 2023-04-13 10:57:32.0)
Thank you for reaching out to us Alex! While we do not have an older version of this Solidworks file, we do also have .STEP files in the same location, which should be insensitive to the version of Solidworks used.
Klaus Becker  (posted 2023-03-14 12:04:23.243)
Hello, could you perhaps recommend a priceworthy frequency generator / amplifier which works with the VC063/M voice coil actuator? best regards, Klaus
jdelia  (posted 2023-03-14 09:20:34.0)
Thank you for contacting Thorlabs. I have reached out to you directly regarding function generator and unity amp recommendations.
Taeguk Um  (posted 2023-02-18 23:45:20.573)
Hi, I'm taeguk Um in KAIST, KOREA. I want to more about this product. In this product, how fast can it move? Also, if i input sinusoidal voltage, can i get reciprocating linear motion? Sincerely Taeguk Um
jdelia  (posted 2023-02-23 01:27:47.0)
Thank you for contacting Thorlabs. While we do not have any speed data for these actuators, you can use the force vs travel plot we show on the website to extrapolate the acceleration and speed of the actuator using the kinematic equations. The speed will depend on the mass attached to the actuator. To answer your second question, yes, applying a sinusoidal voltage wave will result in linear motion.
Rahul Yadav  (posted 2022-12-14 21:02:16.67)
I purchased Voice coil actuator(VC125/M) to control the movement in z- direction. So, I have few questions regarding that 1) How to operate it as if I'm directly giving signal from signal generator it stays upto some voltage and then suddenly shoots up. So, please tell me how to operate it precisely as I need precision of 20 um. 2) And if there is any components or driver to run these actuators please mention them as I'm getting difficulty in running these actuators. Regards, Rahul
cdolbashian  (posted 2022-12-28 09:59:24.0)
Thank you for reaching out to us Rahul! It is important to ensure that there is current flowing to your device. Since this device works via current-generated magnetic fields, simply providing a voltage supply will not necessarily ensure full functionality. I have contacted you directly to troubleshoot this issue and attempt to figure out exactly how to make this work for your application.
user  (posted 2022-12-11 14:24:19.69)
Hi, we are interested in your voice coil actuators and want to know if any controller, driver or amplifier are required for operation. If so, do you recommend any instruments (and their brand names) for the actuator control and operation? Thank you.
jdelia  (posted 2022-12-12 08:15:43.0)
Thank you for contacting Thorlabs. Yes, you would need a controller in order to driver our voice coils. While we do not currently offer a driver, we suggest using a unity amp in conjunction with a signal generator. I have contacted you directly regarding amp recommendation.
Srinivasan Manivannan  (posted 2022-12-05 14:31:26.917)
Is this product Ultra high vacuum compactable? And do we need any controller for this?
jdelia  (posted 2022-12-05 02:24:32.0)
Thank you for contacting Thorlabs. Unfortunately, our voice coil actuators are not considered vacuum compatible. You would need a controller in order to drive them. While we do not currently offer a driver, we suggest using a unity amp in conjunction with a signal generator. I have contacted you directly regarding amp recommendation.
Santosh C R  (posted 2022-10-28 15:07:19.98)
Hi i am a doctoral research scholar at SSSIHL, India working on ultrafast fiber lasers. i am interested in using yourr VC500/M to set up an interferrometer experiment. i would like to know how do you mount the voice coil actuator on a regular optomechanical mount? most importantly, how do you drive the voice coil actuator to perform a simple micelson interfermeter experiment?
ksosnowski  (posted 2022-10-28 03:42:09.0)
Hello Santosh, thanks for reaching out to Thorlabs. We have not designed mounts for all of the voice coil sizes, however VCFL35 is an example of a flexure-mounted unit we've designed. The webpage for VCFL35 has a brief video and Application Guide covering Michelson Interferometry as an example. Generally a triangle function is used to drive the coil, we do not have a driver for these however we have used the OPA548 amplifier from Texas Instruments with function generators as a driver in our development. I have reached out directly to discuss this further.
Nick Mascolo  (posted 2022-10-11 11:15:54.2)
Good Morning, is there information available for what frequency range these products are optimized for? Or is there information about the acceleration of these products?
cdolbashian  (posted 2022-10-14 03:48:38.0)
Thank you for reaching out to us with this inquiry Nick! As the motion of these devices are driven by currents converted to forces due to the winding the coils of wire, we do provide the force which each of these devices can deliver as a function of displacement (see graph in tables above). This determines the maximum acceleration (when adding mass to the component in motion) as well as frequency, as the turning points of the device will require large accelerations to complete the motion. Depending on the Mass and driving waveform it is certainly possible to estimate a max driving frequency though we have not explicitly tested it.
Oscar Martinez  (posted 2021-11-17 10:57:03.793)
Do you provide a controller for the voice coil?
jgreschler  (posted 2021-11-18 11:04:13.0)
Thank you for reaching out to Thorlabs. Unfortunately, we don't offer a controller for our voice coil actuators at the moment. That being said, we currently have a controller in development scheduled for release in Q2 2022.
user  (posted 2021-09-09 21:37:52.913)
We wish to buy one of these products to perform experiments and we have some queries regarding some of the possible applications First which part of the coil moves, is it the coil assembly or the magnet assembly? Can I attach a 30g mirror on the magnet assembly and expect it to oscillate about a mean position of frequency 1kHz. Will the coil be able load this mirror in the horizontal position? What resolution of movement can we expect (we require a max displacement of 60micrometers). At what voltage can we operate this coil.
azandani  (posted 2021-09-23 03:54:57.0)
Hello, thank you for contacting Thorlabs. Allow me to address each of your questions individually. Depending on how the voice coil is mounted, either the magnet or the coil can be the moving component. In most cases, the magnet will be the moving body so the wires do not get fatigued from constant movement. Your second question is more application dependent, but if you are looking to use it as a scanning device, a standalone voice coil will not yield ideal results. It is essentially just a motor and would need to be integrated and designed into a scanning device. The motion of a mirror mounted to the end of the voice coil would not provide constant motion on the surface of the mirror. That being said, these unfortunately do not have an encoder, so the movement resolution would be dependent on the resolution of the voltage and current applied.
Guoxing Gu  (posted 2021-03-14 01:25:55.75)
I would like to attach a 10 g part on the voice coil motor and use it as a vertical stage to move the part down, what acceleration can be achieved? what is the response time?
asundararaj  (posted 2021-04-01 01:49:53.0)
Thank you for contacting Thorlabs. The voice coil actuators have not been formally tested for the achievable acceleration and response time. We are looking to conduct more tests on these in the coming months and will publish any repeatable specs.
Chan Leh Mun  (posted 2021-01-18 02:28:36.843)
Hi What is the max current can be use? I thinking of using 3A for maybe 5 seconds to press a part down during UV curing. Then the coil should be at 1A current for another 5 seconds. This coil use to drive a Z axis for pick & place application. I wish to have up to 11.5N of force available during pressing down for 5 seconds.
YLohia  (posted 2021-02-16 02:07:39.0)
Hello, thank you for contacting Thorlabs. The voice coils have not been tested up to 3 A and the data we have is at 100% duty cycle. The voice coil got up to a temp of 24.5°C in the first 15 seconds of operation at 1 A and then rose to 33 °C over the following 15 seconds (Total 30 seconds of operation at 1 A). The maximum current we specify is 1.9 A. Based on the data we have at the moment and the time that you're looking to run the coil, we believe it can withstand your operating conditions but we cannot guarantee this due to the lack of formal testing with these parameters, but we cannot provide any guarantees at the moment.

ボイスコイルアクチュエータ

Table G1.1  Specifications
Item #aInfoCoil Assembly
Threada		Mounting TapsForce ConstantbTravelCoil
Assembly Mass		Magnet
Assembly Mass		Coil
Resistance		Coil
Inductance
VC063
infoSM05
(0.535"-40)		4-400.74 N/A
(Raw Data)		1/4"
(6.4 mm)		7 g7 g1.9 Ω167 µH
VC063/MinfoM3
VC063B
infoSM1
(1.035"-40)		4-401.5 N/A
(Raw Data)		1/4"
(6.4 mm)		13 g25 g1.9 Ω225 µH
VC063B/MinfoM3
VC125
infoSM05
(0.535"-40)		4-400.89 N/A
(Raw Data)		1/2"
(12.7 mm)		9 g10 g3.5 Ω316 µH
VC125/MinfoM3
VC125B
infoSM1
(1.035"-40)		4-401.6 N/A
(Raw Data)		1/2"
(12.7 mm)		16 g34 g2.9 Ω425 µH
VC125B/MinfoM3
VC125C
infoSM2
(2.035"-40)		Magnet: 1/4"-20
Coil: 8-32 (2 Places)		12.4 N/A
(Raw Data)		1/2"
(12.7 mm)		71 g324 g6.1 Ω2950 µH
VC125C/MinfoMagnet: M6
Coil: M4 (2 Places)
VC190
infoSM05
(0.535"-40)		4-400.8 N/A
(Raw Data)		3/4"
(19.1 mm)		9 g11 g4.6 Ω585 µH
VC190/MinfoM3
VC250
infoSM1
(1.035"-40)		Magnet: 1/4"-20
Coil: 8-32 (2 Places)		3.84 N/A
(Raw Data)		1"
(25.4 mm)		38 g97 g5.1 Ω1675 µH
VC250/MinfoMagnet: M6
Coil: M4 (2 Places)
VC380
infoSM1
(1.035"-40)		Magnet: 1/4"-20
Coil: 4-40		2 N/A
(Raw Data)		1.5"
(38.1 mm)		26 g62 g7.2 Ω1155 µH
VC380/MinfoMagnet: M6
Coil: M3
VC500
infoSM1
(1.035"-40)		Magnet: 1/4"-20
Coil: 8-32 (2 Places)		3.99 N/A
(Raw Data)		2"
(50.8 mm)		51 g153 g8.5 Ω3274 µH
VC500/MinfoMagnet: M6
Coil: M4 (2 Places)
VC625
infoSM30
(M30.5 x 0.5)		Magnet: 1/4"-20
Coil: 8-32 (2 Places)		6.01 N/A
(Raw Data)		2.5"
(63.5 mm)		78 g369 g9.8 Ω4328 µH
VC625/MinfoMagnet: M6
Coil: M4 (2 Places)
  • サイズと対応するネジ規格については、青いInfoアイコンinfoをクリックして開き、「Mounting Features」タブをご覧ください。
  • 1 Aの電流で駆動したときに、最大の力が連続的に得られるストローク位置で規定されています。仕様値をクリックすると全ストローク範囲において連続的に得られる力をご覧いただけ、「Raw Data」をクリックすると生データのエクセルファイルをご覧いただけます。
+1 数量 資料 型番 - ミリ規格 定価(税抜) 出荷予定日
VC063/M Support Documentation
VC063/Mボイスコイルアクチュエータ、移動量 6.4 mm、SM05外ネジ付き(ミリ規格)
￥26,914
Today
VC063B/M Support Documentation
VC063B/Mボイスコイルアクチュエータ、移動量 6.4 mm、SM1外ネジ付き(ミリ規格)
￥44,109
7-10 Days
VC125/M Support Documentation
VC125/Mボイスコイルアクチュエータ、移動量 12.7 mm、SM05外ネジ付き(ミリ規格)
￥32,895
Today
VC125B/M Support Documentation
VC125B/Mボイスコイルアクチュエータ、移動量 12.7 mm、SM1外ネジ付き(ミリ規格)
￥46,351
7-10 Days
VC125C/M Support Documentation
VC125C/Mボイスコイルアクチュエータ、移動量 12.7 mm、SM2外ネジ付き(ミリ規格
￥77,752
7-10 Days
VC190/M Support Documentation
VC190/Mボイスコイルアクチュエータ、移動量 19.1 mm、SM05外ネジ付き(ミリ規格)
￥39,623
7-10 Days
VC250/M Support Documentation
VC250/Mボイスコイルアクチュエータ、移動量 25.4 mm、SM1外ネジ付き(ミリ規格)
￥52,302
7-10 Days
VC380/M Support Documentation
VC380/Mボイスコイルアクチュエータ、移動量 38.1 mm、SM1外ネジ付き(ミリ規格)
￥59,061
7-10 Days
VC500/M Support Documentation
VC500/Mボイスコイルアクチュエータ、移動量 50.8 mm、SM1外ネジ付き(ミリ規格)
￥65,979
7-10 Days
VC625/M Support Documentation
VC625/Mボイスコイルアクチュエータ、移動量 63.5 mm、SM30外ネジ付き(ミリ規格)
￥76,438
Lead Time
+1 数量 資料 型番 - インチ規格 定価(税抜) 出荷予定日
VC063 Support Documentation
VC063ボイスコイルアクチュエータ、移動量 1/4インチ、SM05外ネジ付き(インチ規格)
￥26,914
7-10 Days
VC063B Support Documentation
VC063Bボイスコイルアクチュエータ、移動量 1/4インチ、SM1外ネジ付き(インチ規格)
￥44,109
7-10 Days
VC125 Support Documentation
VC125ボイスコイルアクチュエータ、移動量 1/2インチ、SM05外ネジ付き(インチ規格)
￥32,895
7-10 Days
VC125B Support Documentation
VC125Bボイスコイルアクチュエータ、移動量 1/2インチ、SM1外ネジ付き(インチ規格)
￥46,351
7-10 Days
VC125C Support Documentation
VC125Cボイスコイルアクチュエータ、移動量 1/2インチ、SM2外ネジ付き(インチ規格)
￥77,752
7-10 Days
VC190 Support Documentation
VC190ボイスコイルアクチュエータ、移動量 3/4インチ、SM05外ネジ付き(インチ規格)
￥39,623
7-10 Days
VC250 Support Documentation
VC250ボイスコイルアクチュエータ、移動量 1インチ、SM1外ネジ付き(インチ規格)
￥52,302
7-10 Days
VC380 Support Documentation
VC380ボイスコイルアクチュエータ、移動量 1.5インチ、SM1外ネジ付き(インチ規格)
￥59,061
7-10 Days
VC500 Support Documentation
VC500ボイスコイルアクチュエータ、移動量 2インチ、SM1外ネジ付き(インチ規格)
￥65,979
7-10 Days
VC625 Support Documentation
VC625ボイスコイルアクチュエータ、移動量 2.5インチ、SM30外ネジ付き(インチ規格)
￥76,438
7-10 Days
Additional マイクロメータヘッド、アクチュエータ、アジャスタおよび振動子(トランスデューサー)
  • 微調整ネジ

  • マイクロメータ

  • キネマティックポジショナ

  • 電動アクチュエータ

  • ボイスコイルアクチュエータ

  • ピエゾアクチュエータ

  • チップ型、多段チップ型ピエゾアクチュエータ

  • ランジュバン型振動子
    超音波溶着用