Title :
Piezoelectric based resonance displacement sensor
Author :
Umapathy, M. ; Sujan, Y. ; Suresh, K.
Author_Institution :
Dept. of Instrum. & Control Eng., Nat. Inst. of Technol. Tiruchirappalli, Tiruchirappalli, India
Abstract :
The paper presents design and development of a resonance displacement sensor. The sensor is built with cantilever as a resonator with piezoelectric excitation and sensing in closed loop electronics. The sensor measures the unknown displacement with good linearity within the measurement range. The input displacement varies the length of the resonator by a fixed roller arrangement. The shift in resonance frequency for a change in displacement is detected by closed loop electronics.
Keywords :
cantilevers; displacement measurement; piezoelectric transducers; resonators; sensors; cantilever; closed loop electronics; displacement measurement; fixed roller arrangement; piezoelectric based resonance displacement sensor; piezoelectric excitation; resonance frequency shift; resonator; Biomedical measurement; Displacement measurement; Frequency measurement; Resonant frequency; Semiconductor device measurement; Sensors; Structural beams; closed loop electronics; piezoelectric; resonant sensor; rubber roller;
Conference_Titel :
Sensors Applications Symposium (SAS), 2013 IEEE
Conference_Location :
Galveston, TX
Print_ISBN :
978-1-4673-4636-8
DOI :
10.1109/SAS.2013.6493584
