• Arshi Salamat

The measurements of humidity are very important in various fields and are extensively used in many residential and commercial purposes. Since last few decades the humidity sensors are being used to measure humidity. Researches have been conducting to measure humidity in different levels. However achieving high sensitivity is still a big challenge. New fabrication techniques are now being used to develop sensor structure for better sensitivity. Presently the humidity sensors available in the market are fabricated using polymers made up of organic materials, ceramic etc. There are two basic types of humidity sensors used to measure humidity, namely resistive and capacitive humidity sensors. In this paper a comparative study of resistive and capacitive sensors used for measurement of relative humidity are reported. Most of the industries these days require, humidity measurement including laboratories, in the preservation of food and preservation of old and important buildings and in many more areas. The methods used are based on range and advantages, limitations and sensitivity. The humidity sensor must have very high sensitivity, good linearity and response. In addition, the response should be linear and the cost should be low.

humidity, sensor, polymer, ceramic

"A COMPARATIVE STUDY OF RESISTIVE AND CAPACITIVE HUMIDITY SENSOR ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.2, Issue 6, page no.231-236, June-2015, Available :http://www.jetir.org/papers/JETIR1701433.pdf

"A COMPARATIVE STUDY OF RESISTIVE AND CAPACITIVE HUMIDITY SENSOR ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.2, Issue 6, page no. pp231-236, June-2015, Available at : http://www.jetir.org/papers/JETIR1701433.pdf