Thermally conductive particulate sensor
US11331614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2017 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jan 12, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20009
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In an example, an air filter system includes an air filter and a thermally conductive particulate sensor (TCPS). The TCPS includes a temperature sensor to measure a first temperature of the TCPS at a first time, measure a second temperature of the TCPS at a second time, and provide the measured first temperature and the measured second temperature to a controller. The controller to determine an actual rate of temperature change based on the measured first temperature and the measured second temperature, compare the actual rate of temperature change to a target rate of temperature change, and provide a notification when a difference between the actual rate of temperature change and the target rate of temperature change is greater than an accumulation threshold indicative of a threshold amount of particulate accumulation on the TCPS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.