发明授权
- 专利标题： Method for determining the proportion of at least one material in a moving mixture of materials
- 专利标题（中）： 确定材料移动混合物中至少一种材料的比例的方法
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申请号： US178420申请日： 1980-08-15
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公开(公告)号： US4374326A公开(公告)日： 1983-02-15
- 发明人: John S. Wykes , Ian Adsley
- 申请人： John S. Wykes , Ian Adsley
- 申请人地址： GB2 London
- 专利权人： Coal Industry (Patents) Limited
- 当前专利权人： Coal Industry (Patents) Limited
- 当前专利权人地址： GB2 London
- 优先权： GBX22941/77 19770531
- 主分类号： G01T1/178
- IPC分类号： G01T1/178 ; G01T1/20 ; G01V5/00
摘要：
The proportion of a radioactive material in a moving mass of material is determined with a sensor which derives an output signal proportional to the mass of radioactive material. The output signal is calibrated against known reference values to give a quantitative value of mass. Problems associated with inhomogeneity of material distribution are overcome by averaging the sensed radiation over a time period. Background radiation can be sensed to determine sufficiency of material or it can be shielded from the sensor.
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