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Trace gas monitoring system inside the crew cabin of manned space shuttle requires high precision sensor instrumentation with quick response, smaller mass, compact and less power consumption. Trace gases like Carbon dioxide and carbon monoxide are the primary gases whose concentration required to be measure precisely and continuously inside the crew cabin to mitigate hazardous accidental events to occur. Conventional chemical reaction based or mass spectro meter based instruments for monitoring these gases are either bulky or relatively slower in response. Compared to that, Non Dispersive Infrared sensor (NDIR) technique is accurate, quick in response and compact. This paper covers design and realization of indigenously developed proto model Carbon Dioxide sensor based on NDIR technique. Developed sensor has resolution of better than 1ppm with measurement range from 0 to 5% Vol.

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Intensity of the solar corona is mi than that of the photosphere in the visible wav corona can be observed either during occurre eclipses when the bright photospheric light is b by using an instrument called the 'coronagraph waves in the solar corona creates high fr velocity and/or line-width oscillations. The objectives for scientific community involved in physics. Amplitudes of these oscillations are fee detected under high background photon f generated by the background flux is si compared to peak signals generated by int Identification of appropriate imaging detec methodology to detect low amplitude oscillat high background flux is important for the desi instrument. This paper discusses developed tes intensity oscillations, with proposed detection also describes results of study carried out imaging detector arrays.