Motors & Drives

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


Spend less time second-guessing the quality of your power measurements and analysis and instead focus more on moving your project forward. Yokogawa Test & Measurement provides the tools that allow engineers to 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.


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 and the interfacing of drives in motors.

Read the White Paper


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. 

Read the White Paper



Electric 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.
Download eBook


Diving Into Motor and Drive Control System Measurements

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 via industrial motor drive applications.
View Webinar


Case Study 

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%. 
Download Case Study


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.


Motors & drives measurement challenge
Motors & drives measuring instruments, signals and parameters


Maximum torque per ampere (MTPA) is an optimization strategy for the control of electric motors and drives that employ field-oriented control (FOC), particularly with electric vehicles (EVs) and industrial automation applications. The goal of MTPA is to achieve the maximum possible torque output from a motor for a given current input.


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. 


Use built-in calculations to analyze motor rotor position of Brushless DC motors (BLDC) and Permanent Magnet Synchronous Machines (PMSM) and find the relative angle between the rotor and position sensors such as encoders or resolvers 


Standards driving energy efficiency classifications are a driving force behind the development of the next generation of motor and drive technologies. Learn more here.

  • Electric Motor Power Measurement and Analysis
  • Improving/optimizing electric motor performance and efficiency
  • Understand how electric current is measured

Understanding motor power consumption & measuring efficiency is key for motor development. Learn the basics of power measurements of motor systems (drive systems) & review mechanical measurements.



    Having multiple memory options allows engineering groups to optimize how data is stored, no matter if you need to record for a long time at slower sampling rates, do a fast capture at high sampling rates, or anything in between.

    The Yokogawa Test&Measurement DL950 ScopeCorder operates as an oscilloscope and incorporates the ability to record data for long periods of time like a data acquisition recorder. There are four memory types on the DL950 ScopeCorder: internal memory, solid state drive, flash memory, and PC storage through the IS8000 Integrated Test and Measurement Software Platform. This videos talks about the advantages of each of these and how to pick the best data recording method for you.



    With ongoing innovations in motor and inverter technologies seeking to advance global decarbonization objectives in the automotive industry, it’s crucial that engineers have a thorough understanding of how to properly analyze these systems.

    This complimentary webinar provides engineering professionals involved in motor and control system development with insights that enable data benchmarking and troubleshooting issues related to energy efficiency in electric vehicle (EV) powertrains.

    Key webinar topics include:

    • Establishing baselines for system efficiency
    • Conducting inverter control signal analysis at the systems level
    • Identifying critical measurements for benchmarking inverter input, inverter output, and motor output
    • Analyzing motor control signals, including torque control variables, positional sensors, and pulse-width modulation (PWM), as well as torque measurements

    While DC power measurements are relatively straight forward, AC power measurements that include distorted waveforms, varying power factors, and multiple phases can add complexity to an otherwise simple measurement. During this webinar, we cover multiple fundamentals of power measurement.

    Key topics include:

    • Multi-phase measurements
    • Measurement techniques
    • Measurement applications
    • Real-world examples and more

Looking for more information on our people, technology and solutions?


Precision Making