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Radiation thickness Gauge
- Apr 17, 2017 -

Radiation thickness gauge is divided into two categories. A class is to measure the thickness of the material which is absorbed and the intensity varies by using the radiation wires of β and γ to penetrate the measured materials. The other is the use of radiation-ray backscatter principle, radiation through the material when the scattering phenomenon, when the scattering angle exceeds 90 °, and the inverse scattering intensity is related to the material thickness, measured from the material back-scattering ray intensity can be measured thickness.

The rays emitted by the radioactive source are absorbed by the detector after the measured material, the detector produces a corresponding to the thickness of the current IX, the pressure drop on the R for ex, by setting the thickness corresponding to the voltage es comparison, the deviation (ie thickness of the amount of change) after amplification to display or control meter for display or controlling. The measuring range of thickness gauge with β Ray as radioactive source is narrow, which is suitable for measuring thickness of thin steel strip, copper strip, paper, plastics and rubber. Using γ Ray as a radioactive source of thickness gauge wide range, can be used in harsh environment, not by flue gas, steam and moisture, but the need to take protective measures against radiation.