Motors & Drives

Accelerate the Design, Validation, and Testing of Motors and Drives


When you use Yokogawa instruments, you’re partnering with the leader in power analysis. This means spending less time on second-guessing the quality of your measurements and focusing more on moving your project forward. Yokogawa provides tools to help you analyze the “electro” and “mechanical” challenges of electromechanical systems. Gain valuable insight into the full source-to-load system from the supplied power to motor output - and everything in between.

Motors & Drives System | Yokogawa Test & Measurement


A 4-Step Process for Testing Motor & Drives Systems
White Paper

Electric motors are electromechanical machines that convert electric energy into mechanical energy. Despite differences in size and type, all electric motors work in much the same way: an electric current flowing through a wire coil in a magnetic field creates a force that rotates the coil, thus creating torque. Understanding power generation, power loss and the different types of power measured can be intimidating This white paper gives an overview of basic electric and mechanical power measurements.

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A 4-Step Process for Testing Motors & Drives | Yokogawa Test & Measurement


Tools for the Development of Premium Efficiency Motors
White Paper

Standards driving energy efficiency classifications are a driving force behind the development of the next generation of motor and drive technologies. These classifications drive manufacturers to maximize efficiency, requiring a high confidence in energy measurements. 

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Tools for the Development of Premium Efficiency Motors | Yokogawa Test & Measurement



Electrical Motor Power Measurement & Analytsis Ebook | Yokogawa Test & Measurement

Electrical Motor Power Measurement & Analysis

Understanding motor power consumption and measuring efficiency is key to optimizing motor development and usage. This eBook discusses the basics of power measurements of motor systems, including the drive system, while also looking at mechanical measurements.
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Motors & Drives Analysis Webinar | Yokogawa Test&Measurement

Motors & Drives Analysis 

Motors & Drives Analysis will provide attendees with education and measurement solutions for making precision high-accuracy power measurements on an electric motor system.
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Case Study 

AC Kinetics Case Study | Yokogawa Test&Measurement

AC Kinetics Case Study

AC Kinetics was challenged by Georgia Pacific to develop an algorithm to optimize the operation of large AC induction motors by 10%. To test their algorithm on a motor drive, they needed to demonstrate repeatable measurements in a real world application. 
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The Measurement Challenge

Various measurements at tests points on the motor and drive system require specialized equipment optimized to ensure the highest quality with few trade-offs. The correct instrument may depend on the level of accuracy, number of channels, or type of signal being acquired.


Test Points on a Motors & Drives System | Yokogawa Test & Measurement

Power Analyzer | Yokogawa Test & Measurement

Oscilloscope | ScopeCorder | Yokogawa Test & Measurement

ScopeCorder | Yokogawa Test & Measurement


This application note details the process for measuring and verifying proper motor function using a power analyzer, and how to troubleshoot common errors in the measured output.








In this application note you will learn when and how to use different methods to connect a current transformer to a power analyzer.


With the increased demand in electric-hybrid vehicles, the electromechanical designs of in-vehicle systems are becoming more sophisticated and there has been a demand shift towards high efficiency brushless direct current motor (BLDC) implementation. Think of motorized seat adjustment, electric window, power steering, HVAC fans, pumps, etc. In many of these systems various types of motors are used as actuators; more specifically, 3-phase BLDC motors are gaining popularity as they provide these important advantages:

  • Improved speed vs torque characteristics
  • High dynamic response
  • High efficiency
  • Extended speed ranges
  • Long operation life

How can I capture data from motion sensors synchronized with other analog data? The Yokogawa ScopeCorder series of instruments feature input modules and functions to make this possible. 


How to use built-in calculations to analyze motor rotor position and find the relative angle between the rotor and sensors such as encoders or resolvers.


Government agencies that define the standardization of energy efficiency metrics continue to be a driving force behind the development of the next generation electric vehicle powertrains. These metrics require manufacturers to have high confidence in their measurements and motivate the optimization of efficiency.


This white paper discusses the basics of AC, DC, and power measurements, and a three-step process for making precision electrical and mechanical power measurements on a variety of motors and variable frequency drive (VFD) systems. It is also shown how these measurements are used to calculate the energy efficiency for motor and drive systems. 


The objective of this paper is to show the close relationship between efficiency and power quality, and provide education on the causes of power quality, types of power quality issues, and provide guidance on measurement considerations.


Understanding motor power consumption and measuring efficiency is key to optimizing motor development and usage. This eBook discusses the basics of power measurements of motor systems, including the drive system, while also looking at mechanical measurements. 

Product Overviews


    The current sensor element for the Yokogawa Test&Measurement WT5000 Precision Power Analyzer is ideal for applications requiring a current transformer for high-current measurements. The internal DC power supply simplifies preparations before measurement, requiring only a connecting cable and eliminating the external power supply.

    The WT5000, an industry-leading power analyzer, features seven field-removeable elements, 10 MS/s, 1 MHz power bandwidth, 18-bit resolution, and 0.03% basic power accuracy. Yokogawa Test&Measurement continues to innovate on the platform, enabling /D7 data streaming, /G7 harmonics, and flicker analysis.

    The new current sensor element replaces the traditional current inputs and includes a sensor input terminal with integrated ±15V power supply, eliminating the need for an external power supply. The isolated voltage terminals remain the same as the 5A and 30A elements.



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