Photo-ionization detector for detecting volatile organic gases
US5561344A · kind A · utility
14Cited by
14References
4Claims
0Family size
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Key dates
| Filing date | Mar 7, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Mar 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photo-ionization detector utilizes an ultraviolet (UV) lamp and is designed for detecting and measuring the concentration of volatile gases flowing between closely spaced parallel electrodes. One of the electrodes is formed to allow photons to pass into the space between the electrodes to ionize the volatile gases between the electrodes. The detector also incorporates an improved ionization chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.