http://www.gcsescience.com/prad25-radioactivity-thickness-control.htm Web11 Apr 2024 · The maximum allowable height of the caving zone and mined thickness are determined based on the thickness of the bedrockand the changed tendency of the caving height ratio. This provides a mean to control the stability of the sand layer on the roof of the working face by adjusting the mined thickness of coal. The method has been applied in …
Thickness Measurement - Non-Contact Sensors
WebTo control the thickness of metal or paper. Radioactive isotopes are used in industry to control the thickness of metal or paper as it is rolled into thin sheet. WebThe detector is a Geiger counter and measures the intensity of the beta radiations passing through the material. The detector is integrated to a computer processor. The computer … deathtrap full movie
SHEET THICKNESS CONTROL SYSTEM OPTIMISATION BY …
WebThickness and rate resolution / measurement (2) Frequency stability ± 2 ppm total, 0 to 50C Measurement period 0.10 to 1.0 s (adjustable) Rate display Control: Storage 100 processes, 1000 layers, 50 films Control output 2 (4 optional) Output signal ± 0 to 10 VDC, 15 bits Web1 Dec 1974 · An attempt is made here to provide a better understanding of the screen printing mechanism and more specifically of print thickness control. Two different … WebThickness measurements are mainly used in process control and quality assurance, e.g. for the control of extrusion systems or 100% checking of tube diameters. Inner liner thickness measurement. Inner liners are used in every tire to prevent the air from escaping. As the inner liner is a characteristic relevant to safety of every tire, there are ... deathtrap gog