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A flexible sensor system based on the conjuncted pyro‐piezoelectric effect is demonstrated by Zhong Lin Wang, Ya Yang, and co‐workers in article number 1902831. The designed sensor system can be utilized to detect temperature and pressure simultaneously by touch from a human finger. The designed matrix device and the availability of ferroelectric BaTiO3 materials lead to impressive results in the...
Ferroelectric materials use both the pyroelectric effect and piezoelectric effect for energy conversion. A ferroelectric BaTiO3‐based pyro‐piezoelectric sensor system is demonstrated to detect temperature and pressure simultaneously. The voltage signal of the device is found to enhance with increasing temperature difference with a sensitivity of about 0.048 V °C−1 and with applied pressure with a...
This paper demonstrates that a single thermally-modulated semiconductor gas sensor can discriminate and measure concentrations between two different explosive gases (CH4 and H2) and their mixtures. This method uses a novel feature extraction method, which is based on the wavelet singular entropy (WSE). From the time-frequency domain and energy spectrum perspective, wavelet decomposition coefficients...
Aiming at the desired status self-validation of traditional multifunctional sensor, a novel multifunctional self-validating sensor functional model is employed to improve the measurement reliability. Detailed self-validating functions which consist of faults detection, isolation and recovery, validated uncertainty estimation and health levels evaluation of sensors are presented, especially the proposed...
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