Title:
MULTI-MEASUREMENT DEVICE USING SEARCH COIL TYPE SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/210831
Kind Code:
A1
Abstract:
An embodiment of the present invention provides a technology for enabling position measurement of a plurality of objects with respect to an object including iron, and determining a movement path of each of the plurality of objects. The multi-measurement device using a search coil type sensor according to an embodiment of the present invention comprises: a sensor module comprising at least one sensor, the at least one sensor comprising: a housing having an inner space; a core formed by being drawn into the inner space of the housing; and a coil wound on a portion of the outer circumferential surface of the housing corresponding to the position of the core; an impedance matching unit connected to each of the plurality of sensors and performing impedance matching; and an amplifying unit connected to the impedance matching unit and amplifying a minute current and a voltage generated when the object approaches the sensor.
Inventors:
CHOI JAE HUN (KR)
KIM TAE KYUN (KR)
KIM DONG HYUNG (KR)
KIM TAE KYUN (KR)
KIM DONG HYUNG (KR)
Application Number:
PCT/KR2021/004222
Publication Date:
October 21, 2021
Filing Date:
April 05, 2021
Export Citation:
Assignee:
CHOI JAE HUN (KR)
KIM TAE KYUN (KR)
KIM TAE KYUN (KR)
International Classes:
G05D1/02; G01D5/20; G05D3/12
Foreign References:
| KR100925259B1 | 2009-11-05 | |||
| JPH046489A | 1992-01-10 | |||
| KR200314113Y1 | 2003-05-22 | |||
| KR101486193B1 | 2015-01-28 | |||
| KR102204171B1 | 2021-01-19 |
Attorney, Agent or Firm:
HAN, Sang Soo (KR)
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