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The Emissivity Measurement Apparatus is built at our works in Ambala Cantt and supplied to vocational training laboratories worldwide, as a single unit or in quantity against a tender schedule. It is listed with the rest of our Technical And Vocational Education Lab.
Emissivity Measurement Apparatus
The apparatus consists of a test plate and a comparator. A black plate
is used as a comparator for test plate. When all the physical, dimensions and the temperatures are equal, heat losses from both plates will also be the same, except radiation losses. Hence the input difference will be due to difference in emissive. Both the plates are kept in a panel enclose with perplex front and are given inputs through separate dimmerstats so that temperatures of both can be kept equal. Thus emissivity can determine over a wide range of temperatures.
SPECIFICATIONS
Test plate and Black plates — 160mm. Dia. Aluminum plates, mounted in Panel with mica heater inside.
Instrumental panel consisting of-
Voltmeter and ammeter for input measurement to both heaters through a selector switch.
Separate dimmers for both the plates.
Multichannel digital temperature indicator.
A technical manual accompanies the unit.
SERVICES REQUIRED:
Space area of 1.5m x 1 m. at working height.
230v, 15A, AC supply with earthing connection
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Other vocational training equipment we manufacture, from the same range as the Emissivity Measurement Apparatus.
