Patent · US Active

Optoelectronic sensor and method for measuring a distance

US10401482B2 · kind B2 · utility

11Cited by

2References

14Claims

0Family size

Assignee

SICK AG · DE

Inventors

Stefan Kienzler · Waldkirch, DE
Martin Köhl · Baiersdorf, DE
Kai Waslowski · Trento, IT
Ulrich ZWÖLFER · Waldkirch, DE

Key dates

Filing date	Nov 4, 2016
Grant date	Sep 3, 2019
Priority date	—
Expiry date	Nov 10, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optoelectronic sensor for measuring a distance comprises a light transmitter (20) for transmitting a sequence of individual light pulses (22) and a light receiver (26) for receiving the individual light pulses (24). An individual time of flight measuring unit (28) determines a sequence of individual times of flight of the individual light pulses (22, 24) as the duration between a transmission point in time and its reception point in time. An evaluation unit (30, 32) accumulates individual times of flight and determines a common measurement value for the distance from the accumulated individual times of flight. The evaluation unit (30) comprises a filter (36) for accumulating an individual time of flight only if it coincides, within a time window, with a preceding individual time of flight.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.