Three-Axis Torque Testers of Voice Coil Motors


The PC-MCT-15 motor analyzer is a system for measuring the triaxial torque (Angle-Torque characteristics) of voice coil motors (VCM) used in various devices, including hard disk drives. The motor analyzer measures the torque vs. rotation angle by rotating the motor magnet (coil) at speeds ranging from 0.6 degrees/sec and 2.0 degrees/sec. Measurement results can be viewed on a computer screen and saved as CSV files.

Basic configuration

  • Motor analyzer: PC-MCT5-15
  • Torque meter measuring unit: ATV1-10M01
  • Magnet rotating jig: MTJ-001
  • Personal computer (Windows OS)
  • Coil excitation power supply: PMC35-0.5A (Kikusui Electronics)

Triaxial torque measurement

Measures the torque generated in the voice coil motor coil in three axes (X, Y, and Z axes).

Sample measurement data

Motor Analyzer main specifications

Model PC-MCT5-15 Motor Analyzer
Rated torque 10 mN・m/F.S
Drive speed 0.6, 0.8, 1.0, 1.2, 1.4, 1.8, 2.0 deg/sec (8 levels)
Angular measuring range Total 60° within ±90° range
Measurement modes Point measurement: Allows specification of the desired angle for measurement points 0 to 100
Continuous measurement: Measure the specified angular range starting at any specified measurement point.
Dimensions (W x H x D) 430×150×360 mm
Mass 10 kg

Torque Meter Measuring Unit main specifications

Model ATV1-10M01 Torquemeter Measuring Unit
Rated torque 10 mN・m
Torque detection accuracy Rated value ±1%
Dimensions (W x H x D) 440×430×390 mm
Mass Max. 100 kg

Magnet Rotating Jig main specifications

Model MTJ-001 Magnet Rotating Jig
Angular detection accuracy Not exceeding ±0.001°
Maximum drive speed 2.0 deg/sec
Dimensions (W x H x D) 260×70×170 mm
Mass 10 kg

Coil Excitation Power Supply (Kikusui Electronics) main specifications

Model PMC35-0.5A Coil Excitation Power Supply (Kikusui Electronics)
Output specifications Max. 5 V, max. 0.5 A
Dimensions (W x H x D) 107×124(134)×270(305) mm (max. dimensions in parentheses)
Mass 3.5 kg

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