The signal of the inductive type time-grating angular displacement sensor is essentially a triangular wave which is similar to a sine wave and contains various harmonic components. How to suppress the harmonic components of each frequency and improve the sinusoidal properties of the sensor signal is an important way to improve the measurement accuracy of the sensor. This paper proposes a modulation method for the sine regular change of the air-gap permeance of the sensor, and the basic model of the sensor is established. Two sensor models with different structural parameters are proposed, and the corresponding simulation and error analysis are carried out. The results show that the measurement error of the f2(θ) type sensor is ±25" in the range of 0°-6°. The sensor designed based on the method presented in this paper has an excellent effect on the sinusoidal enhancement of the signal and the suppression of the error component. It has an important significance for the design of the time-grating angular displacement sensor.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.