Air and gas flow velocity and temperature sensor probe
US11874179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2021 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Oct 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K13/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is disclosed a handheld air flow velocity measurement probe that includes a bridge circuit assembly having an airflow velocity sensor that is a resistance temperature detector (RTD) and a digitally controlled resistive element to dynamically adjust and maintain the resistance of the velocity sensor within the overheat temperature predefined range. The velocity measurement also uses a separate temperature sensor to sense the temperature of the air or gas flow. A humidity sensor is also included remote from the other sensors to measure humidity in the gas flow to be measured. All of the above described components are housed at a probe tip instead of a base as in most standard handheld probes and the digital interface at the probe tip allows the user to replace a bulky, expensive telescoping antenna with stackable extender scheme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.