Calibrated airflow sensor facilitating monitoring of electronic system cooling
US8550702B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Nov 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/6965
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibrated airflow sensor and monitoring method are provided. The monitoring method which includes: providing an airflow sensor positioned within an electronic system to be at least partially air-cooled, the airflow sensor including at least one temperature sensor and a heater associated with one temperature sensor of the at least one temperature sensor; calibrating, with the airflow sensor positioned within the electronic system, a duty cycle for use in powering the heater associated with the one temperature sensor; and providing a controller configured to use the calibrated duty cycle in powering the heater of the temperature sensor during airflow monitoring of the electronic system, and to obtain a hot temperature (Thot) reading from the one temperature sensor having the associated heater, and to determine, based at least in part on the hot temperature (Thot) reading, whether to issue an airflow warning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.