White Papers

Understanding linear motor parameters

Print page

Email page

This paper will use first principles to develop specifications specifically for three phase, brushless linear servo motors based on fundamental characteristics. It will also develop relationships between certain motor parameters and show how some are dependant on winding type and others are not.

By Jack Marsh, Parker-Trilogy

LINEAR MOTOR parameters can be confusing and difficult to understand, especially when different manufacturers use different methods to formulate and present them. This White Paper will use first principles, specifically the Lorentz Force Law and Faraday’s Law, to establish linear motor parameter formulations that are consistent and convenient to measure. It will also develop the relationships between certain motor parameters, show how some values differ depending on the winding type of the motor, and show how some parameters are not dependent on the winding type.

Differences between peak-of-sine and RMS measurements will be examined. Simple ways to measure linear motor parameters will be shown. The formulas and relationships will then be compared with experimentally measured values to show their accuracy.

File Size: 134 KB
File Type:

This content is for members only. Please use the login or register link below to access this white paper.

Login or Register Now