Abstract
In this paper, angular rate sensing based on surface acoustic wave (SAW) resonance was newly reported. Our sensor uses an oscillator consisted of a single SAW resonator and an amplifier. The angular rate was obtained from the change of oscillation frequency. The SAW resonator was a one-port resonator, and simply constructed by an interdigital transducer (IDT) and a pair of grating reflector. Any nanoscale scattering patterns or any complicate unidirectional IDTs (UDTs) were not included. In the demonstration, the sensitivity of 7.×−3 Hz /deg·s−1 was achieved when using the SAW resonator with the resonant frequency of 9.7 MHz. The SAW gyroscopes can detect the angular rate as the rotation axis was parallel to the SAW propagation direction. But, it did not reply when the rotation axis was orthogonal. These results agreed with theoretical predictions well.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
