A temperature compensation methodology for piezoelectric based sensor devices
| Autor: | Aijian Bao, Dong F. Wang, Xu Yang, Xueqiao Lou, Ji Zhao |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Physics and Astronomy (miscellaneous) Piezoelectric sensor Acoustics Thermistor 02 engineering and technology Atmospheric temperature range 021001 nanoscience & nanotechnology 01 natural sciences Piezoelectricity Compensation (engineering) Electrical resistance and conductance 0103 physical sciences 0210 nano-technology Temperature coefficient Voltage |
| Zdroj: | Applied Physics Letters. 111:083502 |
| ISSN: | 1077-3118 0003-6951 |
| Popis: | A temperature compensation methodology comprising a negative temperature coefficient thermistor with the temperature characteristics of a piezoelectric material is proposed to improve the measurement accuracy of piezoelectric sensing based devices. The piezoelectric disk is characterized by using a disk-shaped structure and is also used to verify the effectiveness of the proposed compensation method. The measured output voltage shows a nearly linear relationship with respect to the applied pressure by introducing the proposed temperature compensation method in a temperature range of 25–65 °C. As a result, the maximum measurement accuracy is observed to be improved by 40%, and the higher the temperature, the more effective the method. The effective temperature range of the proposed method is theoretically analyzed by introducing the constant coefficient of the thermistor (B), the resistance of initial temperature (R0), and the paralleled resistance (Rx). The proposed methodology can not only eliminate the ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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