Measurement system and method for evaluating time of flight of light

The device has a control signal generator, a light transmitter which generates a light signal with a defined phase relationship to the control signal, and a light receiver. An evaluation unit (16) determines the propagation time between transmitter and receiver. The evaluation unit includes a synchr...

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Bibliographic Details
Main Author ADAMIETZ, HUBERT
Format Patent
LanguageEnglish
French
German
Published 07.04.2004
Edition7
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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Summary:The device has a control signal generator, a light transmitter which generates a light signal with a defined phase relationship to the control signal, and a light receiver. An evaluation unit (16) determines the propagation time between transmitter and receiver. The evaluation unit includes a synchronous rectifier controlled by the control signal, to process the output signal from a light receiver (14), and outputs an evaluation signal based on the optical propagation time. An Independent claim is included for a method of evaluating the light propagation time of a light signal.
Bibliography:Application Number: EP20020000507