Multi-wavelength light emitting and receiving apparatus for monitoring connections by optical fibers
US4708422A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1985 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Sep 6, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/335
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-wavelength light emitting and receiving apparatus for monitoring connections by optical fibers comprising a case, an emission section, a reception section, a keyboard for selecting operating modes and measurement scales, a display arrangement, a processing unit including a microprocessor connected to the emission section, the reception section, the keyboard and the display arrangement, and a feed. The emission and reception sections are mounted in a drawer provided with a connector that can be inserted into a complementary connector provided in the case, this latter containing the keyboard, the display arrangement, the processing unit, and the feed. It also contains at least one more emitting/receiving drawer equipped with a connector that can be inserted in the said complementary connector of the case and contains another controlled current source, another light-emitting diode having an emission wave-length different from that of the first light-emitting diode and connected to the other controlled current source, another photoreceiver having a spectral window covering that of the other light-emitting diode and another amplifier connected to the outlet of the other photorec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.