Infrared detector
US9418532B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Sep 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/064
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods, systems, and apparatus, for an infrared detector are provided. In one aspect, an infrared detector is provided that includes a pyroelectric sensor; a controller for receiving a trigger signal outputted by the pyroelectric sensor; a thermopile sensor, wherein the controller starts the thermopile sensor after receiving the trigger signal output by the pyroelectric sensor; and an alarm, wherein when the thermopile sensor determines that a difference between a current temperature and a background temperature is larger than a threshold value, the controller controls the alarm to generate an alarm signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.