发明名称 |
Light source pulsed with irregular pulse sequence in analog photometric signal evaluation for a test carrier analysis system |
摘要 |
Method of detecting and evaluating analog photometric signals in a test carrier analysis system, and apparatus for carrying out the method. The test field of a test carrier is irradiated by a light source clocked in light-dark phases. The reflected light is detected by a measurement receiver over a measurement period having several light-dark phases, and integrated. An effective suppression of stray and secondary light, which permits measurement even without the hitherto conventional shielding from ambient light, is achieved by a method in which the sequence of the light and dark phases integrated over the measurement period is irregular in such a way that the Fourier-transformed frequency spectrum includes a large number of different frequencies. Each individual frequency therefore makes only a small contribution to the measurement result.
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申请公布号 |
US5463467(A) |
申请公布日期 |
1995.10.31 |
申请号 |
US19940266378 |
申请日期 |
1994.06.27 |
申请人 |
BOEHRINGER MANNHEIM GMBH |
发明人 |
BAUMANN, EDGAR;OBERMEIER, WOLFGANG;WERNER, KARL |
分类号 |
G01N33/52;G01J1/42;G01N21/25;G01N21/27;G01N21/77;G01N21/86;(IPC1-7):G01N21/47;G01J1/44 |
主分类号 |
G01N33/52 |
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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