The differential stress sensor based on magnetoelastic effect

Yanping Shi; Yifei Shi

doi:10.1117/12.819579

31 December 2008 The differential stress sensor based on magnetoelastic effect

Yanping Shi, Yifei Shi

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 713015 (2008) https://doi.org/10.1117/12.819579
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

In order to raise the stress measurement sensitivity based on magnetoelastic effect, a new kind of whole differential magnetoelastic stress sensor with five magnetic poles is designed. First the author introduced the basic sensor structure, the size parameter and the choice of the magnetic core material, and then according to the magnetoelastic effect carried on analysis to the work principle of the sensor, making use of electromagnetism and principle of superposition again inferred the sensor voltage output equation as well as the current sensitivity formula. Finally, the author make a actually measure, and the test result indicated that the actual torques tested by using the magnetoelastic stress sensor made by author with the result of calculation is consistent. Compared with other magnetoelastic stress sensors, the sensor designed by author has simple structure, is easier to manufacture, more precise and sensitive. These characteristics can satisfy the request of engineering application and it is the worth to popularize.

Citation Download Citation

Yanping Shi and Yifei Shi "The differential stress sensor based on magnetoelastic effect", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 713015 (31 December 2008); https://doi.org/10.1117/12.819579

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available