3 papers
astro-ph.IM2023
Six-degrees-of-freedom test mass readout via optical phase-locking heterodyne interferometry
Xin Xu, Jinsong Liu, Henglin Mu +2
Accurate position and posture measurements of the freely-falling test mass are crucial for the success of spaceborne gravitational wave detection missions. This paper presents a no…
physics.optics2022
Noncontact measurement method of linear and angular displacement based on dual-beam feedback interferometric system
Xin Xu, Zongren Dai, Yidong Tan
This study describes a unique optical approach for the noncontact measurement of linear and angular displacement. Compared to previous methods, the sensor system here based on the…
physics.optics2021
High sensitivity and full-circle optical rotary sensor for non-cooperatively tracing wrist tremor with nanoradian resolution
Xin Xu, Zongren Dai, Yifan Wang +2
An optical rotary sensor based on laser self-mixing interferometry is proposed, which enables noncontact and full-circle rotation measurement of non-cooperative targets with high r…