公开(公告)号：US20180267203A1

公开(公告)日：2018-09-20

申请号：US15842896

申请日：2017-12-15

申请人： OMRON Corporation

发明人： Hironobu MORITA ,  Motoharu OKUNO ,  Yasuhito UETSUJI ,  Kazunari KOMAI ,  Takuya MATSUSHIMA ,  Yusuke IIDA ,  Seho SEO

IPC分类号： G01V8/20 ,  G01J3/50

CPC分类号： G01V8/20 ,  G01J3/50

摘要： A photosensor includes a light projection unit, a light receiving unit, a determination unit that determines a magnitude relation between a received light quantity of the light receiving unit and a threshold value set for the received light quantity; and a threshold value setting unit that sets the threshold value of the received light quantity. The threshold value setting unit calculates for each of a plurality of different wavelength regions, a contrast difference that is a difference between a received light quantity obtained when projection is performed on a detection target on a surface of a workpiece and a received light quantity obtained when projection is performed on a background on the surface of the workpiece, and updates the threshold value based on the contrast difference for a wavelength region among the plurality of wavelength regions in which the contrast difference has a maximum value.

公开(公告)号：US20190162605A1

公开(公告)日：2019-05-30

申请号：US16133634

申请日：2018-09-17

申请人： OMRON Corporation

发明人： Takuya MATSUSHIMA ,  Koyo OZAKI ,  Takuma KAWAI ,  Kiyohiko GONDO

IPC分类号： G01K17/00

摘要： An output device for a heat flow sensor includes an offset value calculation part configured to calculate an offset value for each gain magnification regarding a plurality of gain magnifications, an amplification part configured to amplify an output value of a heat flow sensor by a first gain magnification among the plurality of gain magnifications, an offset part configured to subtract the offset value corresponding to the first gain magnification from the amplified output value, and an A/D converter configured to convert the output value after subtraction thereof into a digital value.

公开(公告)号：US20180224570A1

公开(公告)日：2018-08-09

申请号：US15818766

申请日：2017-11-21

申请人： OMRON Corporation

发明人： Takuya MATSUSHIMA ,  Koyo Ozaki ,  Yusuke Iida

IPC分类号： G01V8/20

摘要： A sensor control device and a sensor system are provided through which it is possible to automatically detect whether mutual interference occurs for a plurality of sensor units, and it is possible to automatically set periodic light projection timings for preventing mutual interference. A sensor control device includes a light projection control part configured to instruct a light projection operation for each of a plurality of sensor units and a light projection timing setting part configured to set periodic light projection timings when each of the sensor units is periodically operated based on results of light projection control for each of the sensor units and detection results of each of the sensor units.