Test circuit for a pulsed-laser detector
US5365055A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Apr 27, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/495
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulsed-laser radar detection apparatus includes a decision network coupled to a photodetector. The decision network generates an output pulse when a signal detected by the photodetector is a valid signal according to predefined criteria which are implemented in the decision network. An indicator provides an audible or visual indication that a valid signal has been detected. According to the present invention, a Q-switched modulator is provided in the field of view of the photodetector to generate a simulated valid signal. A test switch is connected in series with the modulator such that closing the test switch causes a simulated valid signal to be generated by the modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.