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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(09) [September 2006] >
| Title: | Opto-electronic humidity sensor with incident light in the form of a conical beam |
| Authors: | Yadav, B C
Srivastava, Anchal
Shukla, R K
Dubey, G C |
| Keywords: | Humidity Sensor
Thin Film
Conical beam |
| Issue Date: | Sep-2006 |
| Publisher: | CSIR |
| IPC Code: | G02B |
| Abstract: | In the present work, an extensive
experimental investigation of TiO2 film has been carried out. TiO2
films have been deposited on a prism base by using sol-gel spin process. As the
humidity increases in the environment where such films are placed,
physisorption and chemisorption of water take place through the pores of films.
This leads to a corresponding modulation in the intensity of reflected light.
Thus, relative humidity is estimated directly in terms of modulation in the
intensity of light observed on a digital power meter. Surface morphology of TiO2
films has also been studied. |
| Page(s): | 694-699 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(09) [September 2006]
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