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H. J. KHARAT1,* , K. P. KAKDE1, P. A. SAVALE1, K. DATTA1, P. GHOSH1, M. D. SHIRSAT1
In the present investigation we have developed the intensity modulated fiber optic PPy-PVS ammonia sensor, which can be used for the detection of ammonia in the exhaled breath of the patients of liver and kidney disorder. The designing of the sensor is based on the modified cladding technique. Ammonia sensitive layer of the polypyrrole (PPy) doped with different organic and inorganic acids synthesized at room temperature by oxidative chemical polymerization can be acts as a modified cladding. We have synthesized PPy-PVS film with optimized process parameters on sensing probe. Interaction of ammonia with PPy-PVS coated sensing probe changes the optical power at the detector. The effect of probe length, wavelength and power of the source on the sensor response has been investigated. This sensor shows almost stable and repeatable response up to 32 days.
Ammonia sensor, Optical fiber, Modified cladding, Polypyrrole film.
H. J. KHARAT, K. P. KAKDE, P. A. SAVALE, K. DATTA, P. GHOSH, M. D. SHIRSAT, Development of PPy-PVS optical fiber Ammonia sensor, Optoelectronics and Advanced Materials - Rapid Communications, 2, 9, September 2008, pp.553-560 (2008).
Submitted at: June 8, 2008
Accepted at: Aug. 28, 2008
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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