发明名称 |
GAS MEASURING AND WARNING DEVICE |
摘要 |
A gas measuring and warning device includes a test tube which is traversed by the gas to be detected and with a photoelectric sampling means which contains an imaging optical system by which the test tube reaction image is projected onto the photo-sensitive row of the sensor elements. The imaging optical system contains a cylindrical lens having a cylinder axis which is parallel to the longitudinal axis of the test tube and to a row of sensor elements. Advantageously an achromatic lens as well as of an interference filter and of a pulse light source as used.
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申请公布号 |
US5057280(A) |
申请公布日期 |
1991.10.15 |
申请号 |
US19870012895 |
申请日期 |
1987.02.10 |
申请人 |
DRAEGERWERK AKTIENGESELLSCHAFT |
发明人 |
STOCK, BURKHARD;KRUEGER, JUERGEN |
分类号 |
G01N21/77;G01N21/78;G01N31/22 |
主分类号 |
G01N21/77 |
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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