Integrated total temperature probe system
US6370450B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1999 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Dec 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K13/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A smart probe system for an aircraft receives an input from a heated total air temperature sensor. When on the ground, the heater for the total air temperature probe is cycled so that when a preselected temperature is indicated by the temperature sensing element in the total air temperature probe, the heater power is turned off, and as the total air temperature probe cools, changes. Changes in indicated temperature from the temperature sensing element are measured and the changes analyzed and used for determining outside air temperature. The outside air temperature can be calculated by determining the rate of change in the temperature while the probe cools. A complimentary method is to determine when the indicated temperature stabilizes, after the heater is turned off, and deriving outside air temperature from the stabilized temperature signal from the sensing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.