Contactless Thin-Layered Torque Sensor Module with Fully-digital Signal Processing Circuit

Chi-Ting Yeh, Nan-Chyuan Tsai, Hsin-Lin Chiu, Chung-Yang Sue

2014

Abstract

A contactless thin-layered torque sensor with fully-digital signal processing circuit is proposed in this work. The mechanical structure of the torque sensor is an orange-slice-alike flexible body. Two links, beforehand aligned, with B/W stripes play the role of optical grating by resolution as no any torque applied to the shaft. As long as the orange-slice-alike flexible body, sandwiched by the aforesaid links, is subject to an external torque applied, a twisted angle is induced between the two thin photo-grating discs. Two sets of photo detector cooperate with the two discs with optical gratings to generate two pulse sequences. Therefore, a time delay between these two pulse sequences can be acquired as long as the shaft is twisted by a torque. A counter IC is employed to quantify this time delay in terms of the torque applied, and the time period, in terms of rotational speed of shaft. One of merits of the proposed torque sensor is: real-time measurement on torque applied becomes feasible even if the shaft, subject to external torque, is rotating at high speed. Another advantage of the fully-digital signal processing circuit is: no need to conduct A/D conversion and free of noise, cross-talk and EMI (Electromagnetic Interference).

Paper Citation

in Harvard Style

Yeh C., Tsai N., Chiu H. and Sue C. (2014). Contactless Thin-Layered Torque Sensor Module with Fully-digital Signal Processing Circuit . In Proceedings of the 11th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO, ISBN 978-989-758-039-0, pages 450-458. DOI: 10.5220/0005017004500458

in Bibtex Style

@conference{icinco14,
author={Chi-Ting Yeh and Nan-Chyuan Tsai and Hsin-Lin Chiu and Chung-Yang Sue},
title={Contactless Thin-Layered Torque Sensor Module with Fully-digital Signal Processing Circuit},
booktitle={Proceedings of the 11th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},
year={2014},
pages={450-458},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005017004500458},
isbn={978-989-758-039-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 11th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,
TI - Contactless Thin-Layered Torque Sensor Module with Fully-digital Signal Processing Circuit
SN - 978-989-758-039-0
AU - Yeh C.
AU - Tsai N.
AU - Chiu H.
AU - Sue C.
PY - 2014
SP - 450
EP - 458
DO - 10.5220/0005017004500458