Air tunnel device for thermohygrometer
US4345469A · kind A · utility
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2References
1Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 3, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Oct 3, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/121
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An air tunnel device is provided for use in combination with a thermohygrter of the type where the change of resistance of the probe in response to changes in the ambient atmosphere is used to measure the temperature and humidity of the atmosphere. The device includes a housing which defines an air passageway therethrough, a probe support for mounting the probe of the thermohygrometer so that the probe is exposed to the air passagement in the housing and a fan mounted in the housing below the probe support for drawing air into the air passageway and thus providing air flow at a constant velocity past the probe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.