1999/10/01 by Craig A. Grimes, C A Grimes, K G Ong +12 · 1 citation
Engineering · Materials Science · #Acoustic Wave Resonator Technologies #Advanced Fiber Optic Sensors #Ferroelectric and Piezoelectric Materials
paper · doi:10.1088/0964-1726/8/5/314
openalex publication_date 1999/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Magnetoelastic thin film sensors can be considered the magnetic analog of surface acoustic wave sensors, with the characteristic resonant frequency of the magnetoelastic sensor changing in response to different environmental parameters. We report on the application of magnetoelastic sensors for remote query measurement of pressure, temperature, liquid viscosity and, in combination with a glucose-responding mass-changing polymer, glucose concentrations. The advantage of using magnetoelastic sensors is that no direct physical connections, such as wires or cables, are required to obtain sensor information allowing the sensor to be monitored from inside sealed containers. Furthermore since it is the frequency response of the sensor that is monitored, rather than the amplitude, the relative orientation of the sensor with respect to the query field is unimportant.