Abstract

A newly designed 1-mm diameter harmonic ball surface acoustic wave (SAW) gas sensor has a double-electrode interdigital transducer (IDT) for driving multiple frequencies. The fundamental frequency is 80 MHz. The difference in delay time between a fundamental frequency component and a high harmonics was used to compensate temperature drift. A temperature coefficient of about 0.1 ppm/°C was obtained after compensation.

Full Text
Published version (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