Error analysis and self-correction of an inductive linear displacement sensor

Jiang-yu Zhao; Yang Wang; Mi Li; Qi-fu Tang

doi:10.1117/12.3032407

13 September 2024 Error analysis and self-correction of an inductive linear displacement sensor

Jiang-yu Zhao, Yang Wang, Mi Li, Qi-fu Tang

Proceedings Volume 13178, Eleventh International Symposium on Precision Mechanical Measurements; 131780A (2024) https://doi.org/10.1117/12.3032407
Event: Eleventh International Symposium on Precision Mechanical Measurements, 2023, Guangzhou, China

Abstract

Error analysis on a PCB based inductive linear displacement sensor is introduced in this paper, and a self-correcting method independent of external reference for the sensor is proposed in this paper. This method is mainly aimed at the linear displacement error of short period caused by manufacturing and assembly of sensor prototype. In this paper, only the 1-order, 2-order and 4-order errors common in the measurement process are studied. Therefore, studying from the output signal, the generation mechanism of three kinds of errors has been traced theoretically, and the functional relationship between the output signal and error has been calculated, thus establishing the short-period error function model of the relevant sensor signal. In the experimental verification stage, four comparative tests were carried out, which effectively verified the feasibility of the self-correcting method. The results of prototype experiments show that the measurement accuracy of the sensor prototype has been effectively improved. The 1-order error is reduced by about 64.5%, the 2-order error is reduced by about 3.8%, the 4-order error is reduced by about 83%, and the total error is reduced from 51.6μm to 36.2μm.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jiang-yu Zhao, Yang Wang, Mi Li, and Qi-fu Tang "Error analysis and self-correction of an inductive linear displacement sensor", Proc. SPIE 13178, Eleventh International Symposium on Precision Mechanical Measurements, 131780A (13 September 2024); https://doi.org/10.1117/12.3032407

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