Gas velocity and temperature sensor system
US6829930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2002 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | May 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas velocity and temperature sensor system comprising a first thermistor driven at a constant temperature and configured to output a flow signal representative of the power dissipated as a function of the gas velocity and a temperature signal representative of the temperature of the first thermistor, a second thermistor configured to output a gas temperature signal representative of the gas temperature proximate the second thermistor, and a processor responsive to the flow signal and the temperature signals, the processor configured to calculate gas velocity using an empirically derived equation in which gas flow velocity is function of a constant and the ratio of the power dissipated to the temperature difference between the temperature of the first thermistor and the gas temperature proximate the second thermistor, the processor deriving a signal representing the gas velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.