Humidity detection using chitosan film based sensor

TALENTA - Conference on Engineering, Science and Technology 2017

工业技术;自然科学

Nasution, T.I.^1,3,4 ; Nainggolan, I.^1,3 ; Dalimunthe, D.^2 ; Balyan, M.^1,4 ; Cuana, R.^2 ; Khanifah, S.^2

Centre of Excellence for Sensor Systems and Technology, Universitas Sumatera Utara, Medan Sumatera Utara

20155, Indonesia^1

Physics Department, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan Sumatera Utara

2055, Indonesia^2

Chemistry Department, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan Sumatera Utara

2055, Indonesia^3

Integrated Laboratory, Universitas Sumatera Utara, Medan Sumatera Utara

20155, Indonesia^4

关键词: Chitosan film;    Humidity detection;    Machine rooms;    Output voltages;    Sensing material;    Solution-casting method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/309/1/012080/pdf
DOI  :  10.1088/1757-899X/309/1/012080

来源: IOP

【 摘 要 】

A humidity sensor made of the natural polymer chitosan has been successfully fabricated in the film form by a solution casting method. Humidity testing was performed by placing a chitosan film sensor in a cooling machine room, model KT-2000 Ahu. The testing results showed that the output voltage values of chitosan film sensor increased with the increase in humidity percentage. For the increase in humidity percentage from 30 to 90% showed that the output voltage of chitosan film sensor increased from 32.19 to 138.75 mV. It was also found that the sensor evidenced good repeatability and stability during the testing. Therefore, chitosan has a great potential to be used as new sensing material for the humidity detection of which was cheaper and environmentally friendly.