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Humidity is a vital physical quantity which is extremely important to production quality control, reliability of electronics, and health of human being. This paper proposed a humidity sensor based on quartz crystal microbalance (QCM) using graphene oxide as a sensitive layer, and investigated the characteristics of sensor according to the shift of quality factor (Q factor) as well as resonant frequency...
This paper reports the development of flexible and transparent (FT) surface acoustic wave (SAW) technology, and FT-SAW based various sensors (temperature, humidity, UV-light and strain) and microfluidics on polymer and glass. The devices on polymers have the Rayleigh and Lamb resonances, while those on glass have the Rayleigh mode only. All the modes have large signal amplitudes. FT-SAW based sensors...
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