Dual beam acousto-optic tunable spectrometer
US5039855A · kind A · utility
38Cited by
23References
37Claims
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Assignee
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Key dates
| Filing date | Mar 5, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Mar 5, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dual beam acousto-optic tunable spectrometer utilizes an optics system to isolate the two radiation beams tuned by an acousto-optic filter, one of which is used to analyze a sample, the other of which is used as a reference. The tuning of the filter and the analysis of the signals is conducted by a microprocessor, which corrects for the many possible sources of noise. A new fluid sample cell utilizing glass balls to collimate radiation incident on the sample and focus radiation transmitted from the sample, is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.