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型號 CA-1120-21
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型號
CA-1120-21
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Educational Objectives

l   Black Body Radiator

l   Thermal Light

l   Cold Light

l   Sensitivity of Human Eye

l   1/r2 relation

l   Radiometric and Photometric Units

l   Scientific Calibration Lamp

l   Halogen Lamp

While in Radiometry the units for optical radiation are related tophysical units like Joule or Watt, in Photometry all measurements are based onthe physiological sensitivity of the human eye. With this educational set thebasics of light and the transformation from radiometric to photometric valuesand vice versa are taught. Calibration with a lamp standard is performed. Thelamp’s behavior with respect to a black body radiator and the discrepancy arediscussed. A light chopper is used to determine the lamp signal for measuringphotometric values. The 1/r2 relation of several radiometric and photometric unitsis examined. The kit is offered either with a scientific calibration lamp (CA-1120)or with a common halogen lamp (CA-1121).