Optical switch with reflection disk in explosion-proof gas detector
US11067559B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2017 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Jan 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An explosion-proof electronic system. The system comprises a substantially explosion-proof enclosure, a disk that is free to rotate about an axis, where the disk is located within the enclosure, an optical sensor that is configured to sense rotation of the disk, where the optical sensor is located within the enclosure, and a processor that is coupled to the optical sensor and analyzes a rotation input from the optical sensor to control in part the operation of the electronic system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.