Emissivity Measurement Apparatus By Supersonic Electronics

Our customers can avail from us an excellent quality range of Emissivity Measurement Apparatus. All substances emit thermal radiations at all temperatures and also absorb all or a part of radiations poratures and also absorb all or a part of radiations coming from surrounding. The present set-up is designed to measure the emissivity of test plate.
The test plate comprises of a mica heater sandwitched between two circular aluminium plates. Black plate is identical with test plate, but its surface is blackened. Both plates are supported on individual brackets in a Cabinate with One side perspex to ensure steady atmospheric conditions. A thermocouple is provided to measure the temperature of each plate and another thermocouple measures the temperature of surrounding. Supply is given to heaters through dimmerstats and is measured with voltmeter and ammeter.

Salient features of Emissivity Measurement Apparatus:
1. Measurement of emissivity of non-black surface over a range of temperatures.
2. Measurement and variation of electrical input with complete panelised instruments
3. Elimination of instrumental error by using same measuring instruments for both the plates.
4. Digital Temperatures Indicator.

SPECIFICATION :
1) Test plate & Reference plate size - 160mm dia.
2) Enclosure size-58 cm x 35 cm with one side of perspex sheet.
3) Heater-200v, 400 watt, Nichrome wire type. Sandwitched between mica sheets.