公开(公告)号：US20190094046A1

公开(公告)日：2019-03-28

申请号：US15894959

申请日：2018-02-13

Applicant: OMRON Corporation

Inventor： Ryota HASEGAWA ,  Hiroyuki TSUCHIDA ,  Kazuaki MIYAMOTO ,  Yusuke HAYASHI ,  Kenji MATSUOKA

IPC: G01D5/20

Abstract: A method of manufacturing a proximity sensor and a manufacturing system for the proximity sensor capable of improving detection precision or expanding a detectable range are provided.A method of manufacturing a proximity sensor outputting presence or absence of a detection object or a position of the detection object as a detection result is provided. The manufacturing method includes: disposing the proximity sensor in a temperature-changeable environment; setting an environment of the proximity sensor to a plurality of different temperatures respectively and storing temperature detected by the temperature detection part of the proximity sensor in association with the detection result output by the control calculation part at each temperature; determining a characteristic parameter unique to a target proximity sensor based on the stored temperature and detection result; and setting the determined characteristic parameter for the target proximity sensor.

公开(公告)号：US20190094404A1

公开(公告)日：2019-03-28

申请号：US15892349

申请日：2018-02-08

Applicant: OMRON Corporation

Inventor： Ryota HASEGAWA ,  Hiroyuki TSUCHIDA ,  Kazuaki MIYAMOTO ,  Yusuke HAYASHI ,  Kenji MATSUOKA

IPC: G01V3/10 ,  G01V3/38

Abstract: A proximity sensor that outputs presence or absence of a detection object or a position of the detection object as a detection result includes: a detection part configured to include a detection coil and a capacitor; an oscillation circuit configured to excite the detection part; an analog/digital conversion circuit configured to detect a signal change occurring in the detection part and output a digital signal indicating the detected signal change; a temperature detection part configured to detect a temperature inside a casing of the proximity sensor; a storage part configured to store a characteristic parameter unique to the proximity sensor in advance; a control calculation part configured to process a digital signal from the analog/digital conversion circuit to calculate a signal indicating a distance to the detection object, compensate the calculated signal using the characteristics parameter stored in the storage part, and output the compensated signal as the detection result.

公开(公告)号：US20180246051A1

公开(公告)日：2018-08-30

申请号：US15814419

申请日：2017-11-16

Applicant: OMRON Corporation

Inventor： Kenji MATSUOKA ,  Takashi MURAMATSU

IPC: G01N27/12

CPC classification number: G01N27/12 ,  G01M3/00 ,  G01M3/181

Abstract: To ensure sufficient time for a user to take measures against a failure of a sensor before a liquid intrudes into the sensor and the sensor fails. A liquid intrusion detection device includes an intrusion detection circuit which detects a resistance value between a plurality of detection wires disposed inside a cable outputting an output value from a sensor, and a liquid intrusion determination unit which transmits a detection result to an external device in response to a resistance value detection result.