Thermistor based measurement system
US9494470B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2014 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jan 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2201/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measurement system for monitoring ambient temperature and airspeed is disclosed. The measurement system uses a single temperature sensor, disposed in the environment under test, in communication with a controller. The controller supplies a first current to the temperature sensor to measure the ambient temperature of the environment. This first current is selected so that it results in little or no self-heating of the temperature sensor. After the ambient temperature is determined, a second, higher current is applied to the temperature sensor. This higher current serves to heat the temperature sensor be a predetermined amount. Based on the expected temperature rise, the ambient temperature and the actual monitored temperature, the airspeed may be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.