A surface-acoustic-wave gyro sensor

Development of wireless, batteryfree gyroscope based on one-port SAW delay line and double resonant antenna

“…This type of SAW gyroscope has unique properties such as superior inherent shock and vibration robustness, easy resonance frequency matching between the drive and sense modes, low power consumption, and facile wireless circuit implementation [5][6][7][8]. To date, few research groups have reported on SAW-based gyroscopes that have different designs and structures [9][10][11][12][13][14]. Varadan et al reported a 74.2-MHz MEMS-IDT SAW gyroscope [12], and Kurosawa et al demonstrated the effect of the metal dot array design on the gyroscope's performance [13].…”

“…To date, few research groups have reported on SAW-based gyroscopes that have different designs and structures [9][10][11][12][13][14]. Varadan et al reported a 74.2-MHz MEMS-IDT SAW gyroscope [12], and Kurosawa et al demonstrated the effect of the metal dot array design on the gyroscope's performance [13]. Lee et al presented a micro rate gyroscope, based on the SAW gyroscopic effect on ST quartz that used a differential dual-delay-line oscillator configuration [14].…”

Development of SAW based gyroscope with high shock and thermal stability

“…Some research groups have experimented with such SAW based gyroscopes with different designs and structures. Varadan [6,7]. Lee et al presented a micro rate gyroscope based on the SAW gyroscopic effect on ST quartz using the differential dual-delay-line oscillator configuration [8].…”

Evaluation of a novel surface acoustic wave gyroscope

“…I t has recently been proposed [1], [2] that a practical, fully integrated gyroscope sensor could be fabricated by using interdigital transducers (IDTs) to generate SAWs that are incident upon an array of perturbation masses or "dots." Secondary SAWs are generated by the Coriolis force, which is produced by the incident SAW interacting with the angular rotation of the device as a whole and acting upon the perturbation masses.…”