Information About

Photometer
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electromagnetic radiation meters
   
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Most photometers are based on a Photoresistor or Photodiode . Either exhibits a change in electrical properties when exposed to light, which can be detected with a suitable Electronic Circuit .


SEE ALSO

  • Photodetector A transducer capable of accepting an optical signal and producing an electrical signal containing the same information as in the optical signal. The two main types of semiconductor photodetectors are the photodiode (PD) and the avalanche photodiode (APD).