Driveless Gyroscope Response of a Quartz Piezoelectric Vibratory Tuning Fork

M.R. Abdel-Rahmana, B.A. Albassamb, M.A. Alduraibic,d aPrince Sultan Advanced Technologies Research Institute (PSATRI), College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia bMechanical Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia cPhysics and Astronomy Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia dNational Center for Applied Physics, King Abdulaziz City for Science and Technology, KACST, P.O. Box 6086, Riyadh 11442, Saudi Arabia

Full Text PDF

In this paper, we report on the observation of a gyroscope response in the absence of drive oscillator circuitry in a single ended quartz piezoelectric tuning fork. The tuning fork gyroscope was fabricated by conventional photolithography and wet etching techniques. The tuning fork length is 4 mm and the stem length is 2 mm; The tuning fork width and thickness are 0.4 mm and 0.35 mm, respectively. The measured gyroscope sensitivity and signal to noise ratio were 0.22 mV/°/s and 40, respectively, at a rotational rate of 60 °/s.

DOI: 10.12693/APhysPolA.127.1352 PACS numbers: 85.85.+j