Abstract
In this work, a novel method was proposed to achieve linear temperature dependent frequency in SAW temperature sensors. The designed SAW temperature sensor can operate in a wide temperature range without the limitation originated from the large second-order frequency-temperature coefficient of traditional SAW resonators. An SAW temperature sensor which consists of two SAW resonators was designed with the proposed method. The frequency characteristics of the SAW resonators were measured from room temperature up to 600 °C. The resonance frequency shows good linearity as the function of the temperature. This novel design method can be widely applied in the SAW temperature sensors based on the piezoelectric substrates with large second-order frequency-temperature coefficient.
Sign-in/Register to access full text options 
Free) 
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 call
