Development and Evaluation of Linear Motors

Measuring the performance of a linear motor (with an operating rate of less than one cycle per second) is traditionally a cumbersome process that requires a power meter, a digital oscilloscope, and a manual table of values:

  1. Use a digital oscilloscope to measure speed and torque mechanical output
  2. Use a power meter to measure values of torque at specific speeds
  3. Create a T-N(Torque-speed) characteristics table from above data

This process is much simpler using a PZ4000 to perform all three of these functions.

  1. Analog out put -- F/V-converted pulse signals from digitized encoder embedded in the motor driver.
  2. Torque signals (analog output) from an accelerometer mounted on the linear motor driver.
  3. Three-phase PWM waveform from the driver
Tm Appli Power09 2
Tm Appli Power09 1

Performance required from power meter

  • Synchronized measurement of motor rotation, torque and power from motor driver
  • High-speed sampling to achieve sufficient time resolution in a short period of time
  • Noise-resistance and high repeatability

Benefits for the user

  • The measurement value is reliable because it calculates power parameters synchronized with the acquired waveform data.
  • Simultaneous measurement of impressed power and mechanical output is available by using a power input module and a sensor input module. The PZ4000 can easily perform a total evaluation of the motor.


Related Products & Solutions

PX8000 Precision Power Scope

The PX8000 is the world's first precision power scope, bringing oscilloscope-style time-based measurement to the world of power analyzers. With up to four channels, it can perform standard multi-phase power measurements. These measurements exist alongside oscilloscope-specific features such as cursor-based specific time period measurements to enable analysis of waveforms with transient components.

PZ4000 Power Analyzer

The PZ4000 is designed for High Frequency Power Measurements as well as Transient Power Measurements. Its real-time acquisition system can perform cycle-by-cycle power measurements. One to Four input elements offer Basic Power Accuracy of 0.2% with 2 MHz Bandwidth and 5MS/sec digitizing rates.