Development of a fiber shape polymeric humidity sensor

Yen-Tse Cheng; Ling-Chih Chen; Wei-Chih Wang

doi:10.1117/12.2260302

17 April 2017 Development of a fiber shape polymeric humidity sensor

Yen-Tse Cheng, Ling-Chih Chen, Wei-Chih Wang

Proceedings Volume 10167, Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017; 101670K (2017) https://doi.org/10.1117/12.2260302
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

In this paper, we demonstrate a polymeric humidity sensor made of a cellulose based composite nanofiber. The device measures humidity via a humidity induced electrical impedance change. The compact, efficient design of the fiber makes it ideal to incorporate into textiles for biometrics applications such as body fluid monitoring. Initial test results show that the sensor can measure between 20 to 80% relative humidity with a sensitivity of about 2%. The impedance of the sensor material changes relatively linearly with relative humidity. The sensor also shows a relatively fast response (~4s) compared to current commercial sensors.

Citation Download Citation

Yen-Tse Cheng, Ling-Chih Chen, and Wei-Chih Wang "Development of a fiber shape polymeric humidity sensor", Proc. SPIE 10167, Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017, 101670K (17 April 2017); https://doi.org/10.1117/12.2260302

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