发明名称 |
RAPID SCAN IDENTIFIER FOR USE IN INFRARED ABSORPTION SPECTROSCOPY |
摘要 |
A rapid scan spectrum identifier fur use in identifying infrared spectrum of the output of a gas chromatograph to identify its absorption characteristics and includes an infrared source and beam splitter, a double beam chopper for alternately sending the infrared beam through a sample or reference gas cell mounted in a suitable furnace, the output of which is recombined and analyzed by a monochromator having a narrow output passband of energy detected by a rapid response detector, the output of which is processed by suitable electronic circuitry to provide a readout. The monochromator is of the scanning type in which a grating is synchronously scanned with a circular variable filter so that the first order output of the grating is selectively passed and higher orders rejected by the filter.
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申请公布号 |
US3711708(A) |
申请公布日期 |
1973.01.16 |
申请号 |
USD3711708 |
申请日期 |
1971.02.25 |
申请人 |
OPTICAL COATING LABOR INC,US |
发明人 |
GEIGER D,US;DOLIN S,US;FOLCH A,US |
分类号 |
G01J3/02;G01J3/04;G01J3/06;G01J3/26;G01J3/28;G01J3/42;G01N30/74;(IPC1-7):G01N21/26 |
主分类号 |
G01J3/02 |
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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