Apparatus and method for detection of electromagnetic radiation using optical switches in an RF network
US9500522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatuses and methods for identifying and characterizing an impingement by electromagnetic radiation on a structure's surface. An array of input and output radiofrequency transmission lines are connected by photoconductive switches that conduct only when exposed to incident electromagnetic radiation. Each input line is assigned a unique input RF frequency. If a switch is exposed to radiation, the connection between the corresponding input and output lines closes, and an RF signal is output from the output port connected to the closed switch, while if the switch is not exposed to the incident radiation, the connection remains open and no RF signal is output. By analyzing the frequencies of the signals output at a port, the location of the radiation incident on the structure can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.