TY - GEN
T1 - Contactless torque/speed sensing module with digital signal processing circuit
AU - Yeh, Chi Ting
AU - Tsai, Nan-Chyuan
AU - Chiu, Hsin Lin
AU - Sue, Chung Yang
PY - 2015/1/1
Y1 - 2015/1/1
N2 - A contactless torque/speed sensing module with digital signal processing circuit is designed and studied.To enhance more sensitivity with respect to the exerted torque, the cross-section of the mechanical structure is designed to be orange -slicelikeand two links are connected to the both sides of the flexible orange-slice-like body. To realize this novel torque sensor applied to high-speed shafts, a couple of photo interrupters are equipped. In addition, there are numerous reflective strips attached to the links to cooperate with photo interrupters. Once the flexible body is deformed by an external torque, a relative angle between the two links is induced. Therefore, the two pulses sequences, out of the two corresponding photo detectors, would present a certain degree of time delay.By conversion of this time delay between the two pulse sequences, the exerted torque can be quantified. A set of digital signal processing circuit, which mainly consists of counter ICs, is incorporated to convert the time delay and time period (i.e., inverse of the shaft speed) into digital data in terms of torque and rotational speed of shaft so that almost no signal interference is involved. One of merits of the proposed torque sensor is: real-time measurement on torque applied becomes feasible even if the shaft 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.
AB - A contactless torque/speed sensing module with digital signal processing circuit is designed and studied.To enhance more sensitivity with respect to the exerted torque, the cross-section of the mechanical structure is designed to be orange -slicelikeand two links are connected to the both sides of the flexible orange-slice-like body. To realize this novel torque sensor applied to high-speed shafts, a couple of photo interrupters are equipped. In addition, there are numerous reflective strips attached to the links to cooperate with photo interrupters. Once the flexible body is deformed by an external torque, a relative angle between the two links is induced. Therefore, the two pulses sequences, out of the two corresponding photo detectors, would present a certain degree of time delay.By conversion of this time delay between the two pulse sequences, the exerted torque can be quantified. A set of digital signal processing circuit, which mainly consists of counter ICs, is incorporated to convert the time delay and time period (i.e., inverse of the shaft speed) into digital data in terms of torque and rotational speed of shaft so that almost no signal interference is involved. One of merits of the proposed torque sensor is: real-time measurement on torque applied becomes feasible even if the shaft 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.
UR - http://www.scopus.com/inward/record.url?scp=84952779173&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84952779173&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-26453-0_15
DO - 10.1007/978-3-319-26453-0_15
M3 - Conference contribution
AN - SCOPUS:84952779173
SN - 9783319264516
T3 - Lecture Notes in Electrical Engineering
SP - 261
EP - 275
BT - Informatics in Control, Automation and Robotics - 12th International Conference, ICINCO 2015, Revised Selected Papers
A2 - Filipe, Joaquim
A2 - Gusikhin, Oleg
A2 - Sasiadek, Jurek
A2 - Madani, Kurosh
PB - Springer Verlag
T2 - 12th International Conference on Informatics in Control, Automation and Robotics, ICINCO 2015
Y2 - 21 July 2015 through 23 July 2015
ER -