发明授权
- 专利标题： Weight measuring apparatus
- 专利标题（中）： 重量测量仪器
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申请号： US990889申请日： 1992-12-15
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公开(公告)号： US5376798A公开(公告)日： 1994-12-27
- 发明人: John W. Pettit
- 申请人： John W. Pettit
- 申请人地址： MD Gaithersburg
- 专利权人： Adaptive Technologies, Inc.
- 当前专利权人： Adaptive Technologies, Inc.
- 当前专利权人地址： MD Gaithersburg
- 主分类号： G01B15/02
- IPC分类号： G01B15/02 ; G01N9/24 ; G01N23/16 ; G01N23/203 ; G01N33/44 ; G05D5/03 ; G01G9/00 ; G01N23/10 ; H01L31/117
摘要：
A low voltage, compact measuring apparatus for measuring the weight of a material is disclosed which uses a PIN diode in conjunction with a low noise processing circuit to detect particle radiation emitted from a source, which source has its detection intensity affected by a material to be measured. A light blocking, particle radiation permeable material protects the PIN diode from detecting light radiation.
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