Patent · US Active

Method for operating a distance sensor and device for performing the method

US9494678B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

BALLUFF GMBH · DE

Inventors

Sorin Fericean · Leonberg, DE
Martin Osterfeld · Bietigheim-Bissingen, DE

Key dates

Filing date	Apr 19, 2011
Grant date	Nov 15, 2016
Priority date	—
Expiry date	Jun 13, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01S7/4021
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a method for operating a distance sensor (10). In the method, a transmission signal (S1) is radiated as transmission radiation (S2), reflected as reflection radiation (S3) by an object (16), the distance (D) of which is to be measured, and received as a reflection signal (S4). The reflection signal (S4) present at a receiver input (28) and a reference signal likewise occurring at the receiver input (28) are controlled to a specified ratio, the distance (D) being determined during the adjusting process. The invention further relates to devices for performing the method. The method is characterized in that microwaves are used as the transmission radiation (S2) and a cross-talk signal (S5, S6) from the transmission signal (S1) directly to the receiver input (28) with suppressed radiation of the transmission signal (S1) is used as the reference signal.

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