National Physical Laboratory

Instrument reading techniques

Radiation monitorThere are two techniques that can be used to obtain an instrument reading:

  1. Eye averaging
  2. Time integration

Note:

Due to the randomness of radiation, an integrated measurement is usually more precise due to better statistics. This is more so when using digital or semi-digital display instruments that only display varying numbers or semi analogue bar charts.

However, similar levels of accuracy and precision may be achieved using the eye-averaging technique when using analogue instruments, provided there is a good match between the scaled display and the range of measurements to be made.

 

 

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