Betekenis van:
photoelectric cell
photoelectric cell
Zelfstandig naamwoord
- a transducer used to detect and measure light and other radiations
Synoniemen
Hyperoniemen
Hyponiemen
Voorbeeldzinnen
- In some types of opacimeter the gas between the light source and the photoelectric cell, or between transparent parts protecting the source and the photoelectric cell, is not of constant opacity.
- The construction of the electrical circuit, including the indicating dial, shall be such that the current output from the photoelectric cell is a linear function of the intensity of the light received over the operating-temperature range of the photoelectric cell.
- The check consists in verifying that this value does not differ by more than 0,05 m-1 from that read on the opacimeter indicating dial when the screen is introduced between the source of light and the photoelectric cell.
- The response time of the electrical measuring circuit, being the time necessary for the indicating dial to reach 90 % of full-scale deflection on insertion of a screen fully obscuring the photoelectric cell, shall be 0,9 to 1,1 seconds.