Invention Grant
US08487235B2 Photoelectric sensor for sensing a target at a predetermined location
有权
用于在预定位置感测目标的光电传感器
- Patent Title: Photoelectric sensor for sensing a target at a predetermined location
- Patent Title (中): 用于在预定位置感测目标的光电传感器
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Application No.: US12422476Application Date: 2009-04-13
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Publication No.: US08487235B2Publication Date: 2013-07-16
- Inventor: Jianhua Wang , Dennis C. Mackey , Jianyong Liao
- Applicant: Jianhua Wang , Dennis C. Mackey , Jianyong Liao
- Applicant Address: US OH Mayfield Heights
- Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee Address: US OH Mayfield Heights
- Agency: Whyte Hirschboeck Dudek S.C.
- Agent William R. Walbrun; John M. Miller
- Main IPC: G06M7/00
- IPC: G06M7/00 ; H01J3/14 ; G01C3/08

Abstract:
A photoelectric sensor and method for sensing a target at a predetermined location. The photoelectric sensor includes a light source that emits light, an output circuit including first and second photodetectors, and first and second receive lenses respectively positioned adjacent to the first and second photodetectors, respectively. If the target is at the predetermined location, then a first portion of the emitted light is received by the first photodetector after being reflected off of the target and passing through the first receive lens, and a second portion of the emitted light is received by the second photodetector after being reflected off of the target and passing through the second received lens. Further, the output circuit produces an output signal indicative of a sensed characteristic of the target based on signals generated by the first and the second photodetectors.
Public/Granted literature
- US20100258711A1 Photoelectric Sensor Public/Granted day:2010-10-14
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