Distance-measuring sensor and method for detecting

专利名称：Distance-measuring sensor and method for

detecting and determining the distance ofobjects

发明人：Fabian Jachmann,Michael Engler,Bernd

Rothenberger,Thomas Dollmann

申请号：US14704213申请日：20150505公开号：US09995820B2公开日：20180612

专利附图：

摘要：A distance-measuring sensor () is provided for detecting and determining the

distance of objects () in a monitored zone comprising a transmitter () for transmittingtransmitted pulses; a receiver () for generating a received signal from the transmittedpulses remitted in the monitored zone; a first comparator unit () for digitizing thereceived signal with reference to a first threshold; and a control and evaluation unit ()which is configured to transmit a plurality of transmitted pulses via the transmitter (), tocollect the received signals thereupon generated by the receiver () in a histogram and todetermine a received time point from the histogram and thus to determine a measuredvalue for the signal transit time from the sensor () to the object (). In this respect, asecond comparator unit () is provided for digitizing the received signal with reference to asecond threshold, wherein the first comparator unit (), the second comparator unit () andthe control and evaluation unit () are configured to acquire three digital states of arespective section of the received signal with reference to the first threshold and toweight the contributions of the section to the histogram in dependence on the digitalstate.

申请人：SICK AG

地址：Waldkirch DE

国籍：DE

代理机构：Nath, Goldberg & Meyer

代理人：Jerald L. Meyer,Stanley N. Protigal

更多信息请下载全文后查看