A New Approach to Improve IPMC Performance for Sensing Dynamic Deflection: Sensor Biasing
| Autor: | Nadia Naghavi, Javad Safaie, Zahra Qaviandam |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Acoustics 010401 analytical chemistry Linearity Biasing Smart material 01 natural sciences Signal 0104 chemical sciences Ionic polymer–metal composites chemistry.chemical_compound Amplitude chemistry Deflection (engineering) Output impedance Electrical and Electronic Engineering Instrumentation |
| Zdroj: | IEEE Sensors Journal. 20:8614-8622 |
| ISSN: | 2379-9153 1530-437X |
| Popis: | This paper presents a new approach to improve the performance of IPMC-based sensors as reliable deflection sensors. Theoretical and experimental responses of an IPMC sensor strip were investigated when it was being biased by an AC electrical signal source. Using an especially-designed experimental setup, the sensitivity, linearity, and stability of the biased sensor were analyzed under different deflection angles. Moreover, the impact of frequency and amplitude of the bias signal, the influence of internal impedance of the bias signal source, and the effect of mechanical deflection frequency and angle on the performance of the IPMC sensor were studied. Theoretical and experimental results indicated that it would be possible to greatly improve the sensitivity (446.5 times) and stability (24.4 times) of an IPMC deflection sensor by applying an appropriate electrical bias signal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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