WIRELESS MEASUREMENT APPARATUS AND METHOD USING SURFACE ACOUSTIC WAVE BASED MICRO-SENSOR

摘要

Wireless measuring device and a method is disclosed using surface acoustic wave-based micro-sensor. Wireless measuring device using the present invention a SAW-based micro-sensor according to the embodiment, the pulse signals received over the air surface acoustic wave (SAW: Surface Acoustic Wave) and converted to the conversion surface acoustic wave element in order to measure the change in environment the reflection by which to generate a plurality of pulse signals transmitted to the wireless SAW-based micro-sensor; And a pulse signal is generated to measure the change in environmental factors transmitted to the SAW-based micro-sensor, and the air, the distance of the transmitted pulse signal is received among the plurality of pulse signal is reflected by the SAW micro-sensor, a set of environmental factors and each time corresponding to the interval between the pulse signal and generates a pulse signal transmitted to the SAW-based micro sensor wirelessly counts the occurrence frequency of the pulse signal for a predetermined time, the change in the environmental factors, and a reader that measures. ;