Flow compensated gas comparison probe
US4343177A · kind A · utility
4Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1980 |
| Grant date | Aug 10, 1982 |
| Priority date | — |
| Expiry date | Nov 7, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas comparison probe contains first and second sensor elements isolated om each other. Air is drawn across a surface to be monitored and directed onto the first sensor element. Air is drawn from a location spaced away from the surface to be monitored and directed onto the second sensor element. A flow constrictor in the air flow path to one of the sensor elements is used to calibrate the outputs of the two sensor elements under known conditions before attempting to monitor air flow which may contain a gas to be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.