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Emissivity Measurement Apparatus 

Altec Labs Home  »  Heat Transfer Lab Equipment ยป Emissivity Measurement Apparatus
Altec Labs Manufacturers for Emissivity Measurement Apparatus from India  
Emissivity Measurement Apparatus  Name
(Code - ALABS-A143-030 ) | Altec Export Lab Specification:
Emissivity Measurement Apparatus : Emissivity Measurement Apparatus 
  • 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.
  • Determination of the Emissivity of a test plate.
  • Study the variation of emissivity of test plate with absolute temperature.
Utilities Required:
  • Electricity Supply : 1 Phase, 220 V AC, 4 Amp.
  • Table for set-up support.
Technical Specifications:
  • Test plate Diameter: 160 mm (approx.)
  • Black Plate Dia: 160 mm (Approx.)
  • Heater (2Nos.): Nichrome Wire Heater. (One each for test plate & black plate)
  • Digital Voltmeter: 0-300 Volt
  • Digital Ammeter: 0-2 Amps
  • DPDT Selector switches: For Digital Voltmeter & Digital Ammeter
  • Variacs; 0- 230 V, 2 Amp, (2 Nos.)(One each for test plate and black plate)
  • Digital Temp. Indicator: 0-3000C, with multi-channel Switch
  • Temperature Sensors: RTD PT-100 type
  • Instruction Manual: An english instruction manual will be provided along with the Apparatus


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