Pulsed thermistor sensor
US7201049B2 · kind B2 · utility
1Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Oct 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/696
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermistor is pulsed with energy, and a time constant of decay of temperature is calculated based on measured resistance of the thermistor over a number of known intervals. The time constant is representative of the mass air flow. The ambient air temperature may be found without waiting for the thermistor to reach the ambient air temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.