公开(公告)号：EP3407009A1

公开(公告)日：2018-11-28

申请号：EP17741221.0

申请日：2017-01-06

申请人： Omron Corporation

发明人： KOIZUMI Masayuki ,  WAZUMI Minami ,  HUANG Chunmei ,  HOMMA Kenji

IPC分类号： G01B7/00 ,  G01D5/20

CPC分类号： G01D5/2208 ,  G01B7/003 ,  G01B7/004 ,  G01B7/023 ,  G01D5/2225

摘要： A proximity sensor (1) is provided with coils (11, 12) disposed in a pre-set positional relationship, a first distance calculation unit (31) and a second distance calculation unit (32) for calculating first distance information (d1) and second distance information (d2), respectively, from the coils (11, 12) to a detection object (W) on the basis of reception results (voltages V1, V2) of the coils (11, 12), and a position estimating unit (33) for estimating the position (distance and azimuth) of the detection object (W) on the basis of the first distance information (d1), the second distance information (d2), and the positional relationship of the coils (11, 12).