A Bulk Acoustic Wave Strain Sensor for Near-Field Passive Wireless Sensing.

ABSTRACT: Near-field passive wireless sensors can realize non-contact strain measurement, so these sensors have extensive applications in structural health monitoring. However, these sensors suffer from low stability and short wireless sensing distance. This paper presents a bulk acoustic wave (BAW) passive wireless strain sensor, which consists of two coils and a BAW sensor. The force-sensitive element is a quartz wafer with a high quality factor, which is embedded into the sensor housing, so the sensor can convert the strain of the measured surface into the shift of resonant frequency. A double-mass-spring-damper model is developed to analyze the interaction between the quartz and the sensor housing. A lumped parameter model is established to investigate the influence of the contact force on the s

SUBMITTER: Zou X 

PROVIDER: S-EPMC10145374 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature