Sensors 2011, 11(9), 8674-8684; doi:10.3390/s110908674
Article

Real-Time Remote Monitoring of Temperature and Humidity Within a Proton Exchange Membrane Fuel Cell Using Flexible Sensors

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Received: 15 July 2011; in revised form: 19 August 2011 / Accepted: 5 September 2011 / Published: 8 September 2011
(This article belongs to the Section Physical Sensors)
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Abstract: This study developed portable, non-invasive flexible humidity and temperature microsensors and an in situ wireless sensing system for a proton exchange membrane fuel cell (PEMFC). The system integrated three parts: a flexible capacitive humidity microsensor, a flexible resistive temperature microsensor, and a radio frequency (RF) module for signal transmission. The results show that the capacitive humidity microsensor has a high sensitivity of 0.83 pF%RH−1 and the resistive temperature microsensor also exhibits a high sensitivity of 2.94 × 10−3 °C−1. The established RF module transmits the signals from the two microsensors. The transmission distance can reach 4 m and the response time is less than 0.25 s. The performance measurements demonstrate that the maximum power density of the fuel cell with and without these microsensors are 14.76 mW·cm−2 and 15.90 mW·cm−2, with only 7.17% power loss.
Keywords: flexible humidity microsensor; flexible temperature microsensor; radio frequency module; power density
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Kuo, L.-S.; Huang, H.-H.; Yang, C.-H.; Chen, P.-H. Real-Time Remote Monitoring of Temperature and Humidity Within a Proton Exchange Membrane Fuel Cell Using Flexible Sensors. Sensors 2011, 11, 8674-8684.

AMA Style

Kuo L-S, Huang H-H, Yang C-H, Chen P-H. Real-Time Remote Monitoring of Temperature and Humidity Within a Proton Exchange Membrane Fuel Cell Using Flexible Sensors. Sensors. 2011; 11(9):8674-8684.

Chicago/Turabian Style

Kuo, Long-Sheng; Huang, Hao-Hsiu; Yang, Cheng-Hao; Chen, Ping-Hei. 2011. "Real-Time Remote Monitoring of Temperature and Humidity Within a Proton Exchange Membrane Fuel Cell Using Flexible Sensors." Sensors 11, no. 9: 8674-8684.


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