The present Set-up is designed to measure the emissivity of test plate. The test plate comprises of a mica heater sandwiched between two circular plates.
Black plate is identical with test plate, but its surface is blackened.
As all the physical properties, dimension and temperature are equal heat losses from both plates will be same except radiation loss.
Hence the input difference will be due to difference in emissivity.
Both plates are supported on individual brackets in a enclosure with one side glass to ensure steady atmospheric conditions.
Temperature Sensors are provided to measure the temperature of each plate and surrounding.
Electric Supply is given to heaters through separate variacs so that temperatures of both can be kept equal and is me asured with Digital Voltmeter and Digital Ammeter.
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Founded in 2073 in Butwal, Foresight Techno Traders and Suppliers Pvt. Ltd. specializes in engineering equipment, construction materials, and services. Our expertise includes prestressing services for bridges, survey equipment, safety gear, and laboratory instruments. With a dedicated team of professionals, we're a trusted partner for engineering needs. We offer prompt after-sales support and accredited mechanical calibration services. Our quality control instruments adhere to rigorous standards for material testing, covering soil, concrete, rock, bitumen, cement, and steel. We also provide consulting, environmental studies, hydropower services, structural engineering, and safety gear for hiking and adventure activities.
EMMISSIVITY MEASUREMENT APPARATUS
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