发明名称 |
Measurement apparatus employing radiation |
摘要 |
A measuring apparatus for measuring a physical property of a substance using radiation has a source of radiation for irradiating the substance, a radiation detector which is disposed on the opposite side of the substance from the radiation source, a mask for allowing radiaton to enter the radiation detector only along n prescribed pathways, and a signal processing and calculating device for calculating the physical property of the substance based on the radiation which is incident upon the radiation detector. The mask has n different mask patterns each comprising a plurality of pattern elements which allow the passage of radiation and which can be positioned between the substance and the radiation detector in alignment with the radiation pathways.
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申请公布号 |
US4885759(A) |
申请公布日期 |
1989.12.05 |
申请号 |
US19870124558 |
申请日期 |
1987.11.24 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA;PETRO-CANADA, INC. |
发明人 |
TOMODA, TOSHIMASA;BADONO, SHINJI;KOMARU, MASAKI |
分类号 |
G01N23/08;G01N23/12 |
主分类号 |
G01N23/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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