KR980003599A - Center Connection Straight Inductive Current Detector - Google Patents

Center Connection Straight Inductive Current Detector Download PDF

Info

Publication number
KR980003599A
KR980003599A KR1019980000417A KR19980000417A KR980003599A KR 980003599 A KR980003599 A KR 980003599A KR 1019980000417 A KR1019980000417 A KR 1019980000417A KR 19980000417 A KR19980000417 A KR 19980000417A KR 980003599 A KR980003599 A KR 980003599A
Authority
KR
South Korea
Prior art keywords
central axis
present
current
magnetic field
coil
Prior art date
Application number
KR1019980000417A
Other languages
Korean (ko)
Other versions
KR100324728B1 (en
Inventor
배병훈
Original Assignee
배병훈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배병훈 filed Critical 배병훈
Priority to KR1019980000417A priority Critical patent/KR100324728B1/en
Publication of KR980003599A publication Critical patent/KR980003599A/en
Application granted granted Critical
Publication of KR100324728B1 publication Critical patent/KR100324728B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/08—Measuring current density
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0064—Arrangements or instruments for measuring magnetic variables comprising means for performing simulations, e.g. of the magnetic variable to be measured

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

본 발명은 교류 전류가 서로 반대로 흐르는 2개의 반원형 송신코일을 이용하여 송신코일의 중심축에 집속된 선형의 유도전류를 전도성 매질이나 유전체 등에 발생시키고, 2개의 반원형 코일의 틈새에 배치되어 있는 수신코일이나 홀센서 (Hall sensor)등의 자기장 센서(sensor)를 이용하여 매질의 유도전류에 의해서 발생하는 자기장을 위상분리 검출과정에 의해 전기전도도, 유전상수를 비접촉으로 측정할 수 있는 탐촉자이다. 송신코일을 2개의 반원형 구조로 하고 여기에 흘리는 전류가 서로 반대이기 때문에 중심축 상에서 유도전류의 세기가 가장 강하여 측정의 공간분해능을 향상 시킬 수 있고, 또한 중심축 상에서 발생하는 전류가 직선형이기 때문에 검출코일의 방향을 회전시킴에 따라서 대상매질의 전기전도도와 유전상수의 비등방적 특성을 측정할 수 있도록 하였다. 본 발명에 따른 검출기는 일반적으로 많이 사용되는 금속탐지기의 용도 및 물성 검사용으로 사용될 수 있다. 또한 본 발명의 가장 특징적인 효과로는 본 검출기를 이용하여 사람의 뇌 신경세포의 활동을 머리를 절개하지 않는 비침습적인 방법으로 측정하는 용도를 사용 가능하다는 것이다.The present invention generates a linear induction current focused on a central axis of a transmission coil by using two semicircular transmission coils in which alternating currents flow in opposite directions. It is a transducer that can measure the electrical conductivity and dielectric constant without contact by magnetic phase generated by induction current of medium by using magnetic field sensor such as Hall sensor or Hall sensor. Since the transmitting coil has two semicircular structures and the currents flowing through them are opposite to each other, the intensity of the induced current on the central axis is the strongest, so that the spatial resolution of the measurement can be improved and the current generated on the central axis is linear. As the direction of the coil was rotated, the anisotropic characteristics of the electrical conductivity and dielectric constant of the target medium were measured. The detector according to the present invention can be used for the use of metal detectors and the physical property inspection that are commonly used. In addition, the most characteristic effect of the present invention is that the detector can be used to measure the activity of human brain neurons in a non-invasive method that does not incision head.

Description

중심 접속 직선형 유도전류 검출기Center Connection Straight Inductive Current Detector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도 - 본 발명에 따른 유도전류 검출기.1-Induction current detector according to the invention.

Claims (1)

대상 매질에 교류 자기장을 인가하여 유도전류를 발생시키고 유도전류에 의한 2차 자기장을 검출함에 있어서, 제1도과 같이 송신코일(a)이 마주보는 2개의 반원형의 모양으로 감겨지고, 송신코일(a)에는 화살표(c)처럼 서로 반대 방향으로 전류를 흘려 대상매질에 교류자기장을 인가하며 2차 자기장 검출부를 송신코일(a)의 틈새(b)에 배치한 유도전류 검출기.In applying an alternating magnetic field to the target medium to generate an induction current and detecting a secondary magnetic field caused by the induction current, as shown in FIG. 1, the transmission coil a is wound into two semicircular shapes facing each other, and the transmission coil a Induced current detector in which the alternating magnetic field is applied to the target medium by flowing current in opposite directions as shown by arrow (c), and the secondary magnetic field detector is disposed in the gap (b) of the transmission coil (a). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019980000417A 1998-01-06 1998-01-06 Center Focused Linear Induced-Current Probe KR100324728B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980000417A KR100324728B1 (en) 1998-01-06 1998-01-06 Center Focused Linear Induced-Current Probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980000417A KR100324728B1 (en) 1998-01-06 1998-01-06 Center Focused Linear Induced-Current Probe

Publications (2)

Publication Number Publication Date
KR980003599A true KR980003599A (en) 1998-03-30
KR100324728B1 KR100324728B1 (en) 2002-07-03

Family

ID=37478102

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980000417A KR100324728B1 (en) 1998-01-06 1998-01-06 Center Focused Linear Induced-Current Probe

Country Status (1)

Country Link
KR (1) KR100324728B1 (en)

Also Published As

Publication number Publication date
KR100324728B1 (en) 2002-07-03

Similar Documents

Publication Publication Date Title
US4013986A (en) Inductive transducer for rectilinear or rotational displacement
KR910006695A (en) Electromagnetic Flowmeter Using Multiple Frequency Magnetic Field
JP2004503765A (en) Magnetic transducer torque measurement
De Nazaré et al. Compact optomagnetic Bragg-grating-based current sensor for transmission lines
JP2009204342A (en) Eddy current type sample measurement method and eddy current sensor
JPS593383A (en) Metal detecting system
US3696674A (en) Electromagentic flowmeter apparatus
ATE33714T1 (en) MAGNETIC-INDUCTION FLOW MEASUREMENT PROCEDURE.
US4963818A (en) Current sensor having an element made of amorphous magnetic metal
KR980003599A (en) Center Connection Straight Inductive Current Detector
WO2002059555A1 (en) Portable magnetic transducer
US7287435B2 (en) Inductive flow meter for electrically conductive liquids
JP4192708B2 (en) Magnetic sensor
SU627393A1 (en) Eddy-current transducer
DE50111805D1 (en) METHOD AND ARRANGEMENT FOR CONTACTLESS DETERMINATION OF SPATIAL SPEED DISTRIBUTION IN ELECTRICALLY CONDUCTIVE LIQUIDS
US4039929A (en) Inductive transducer for rectilinear or rotational displacement
JPH04504470A (en) induction flow meter
JPS6398501A (en) Method for forming part to be detected in linear position detector
JPH04232402A (en) Stroke sensor
SU1492336A1 (en) Device for measuring electric field intensity vector in conductive media
KR920008489A (en) Inspection device by electromagnetic induction
RU2208762C1 (en) Amplitude-phase differential-transformer displacement sensor with phase output
SU996956A1 (en) Device for measuring variable electric field strength
SU1097890A1 (en) Strap-on electromagnetic converter for measuring thickness of non-electroconductive coatings
SU597012A1 (en) Induction apparatus

Legal Events

Date Code Title Description
A201 Request for examination
G15R Request for early opening
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130107

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20140122

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20150106

Year of fee payment: 14

FPAY Annual fee payment

Payment date: 20160108

Year of fee payment: 15

FPAY Annual fee payment

Payment date: 20170123

Year of fee payment: 16