KR840001335A - Coating thickness measuring apparatus and method - Google Patents

Coating thickness measuring apparatus and method Download PDF

Info

Publication number
KR840001335A
KR840001335A KR1019820003875A KR820003875A KR840001335A KR 840001335 A KR840001335 A KR 840001335A KR 1019820003875 A KR1019820003875 A KR 1019820003875A KR 820003875 A KR820003875 A KR 820003875A KR 840001335 A KR840001335 A KR 840001335A
Authority
KR
South Korea
Prior art keywords
voltage
transformer core
magnetic flux
coating thickness
incomplete
Prior art date
Application number
KR1019820003875A
Other languages
Korean (ko)
Other versions
KR860000962B1 (en
Inventor
로빈슨 메드웰 죠오지
Original Assignee
엘돈 에이취. 루터
컴버스쳔 엔지니어링 인코포레이티드
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
Priority claimed from US06/322,304 external-priority patent/US4507609A/en
Application filed by 엘돈 에이취. 루터, 컴버스쳔 엔지니어링 인코포레이티드 filed Critical 엘돈 에이취. 루터
Publication of KR840001335A publication Critical patent/KR840001335A/en
Application granted granted Critical
Publication of KR860000962B1 publication Critical patent/KR860000962B1/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/12Measuring magnetic properties of articles or specimens of solids or fluids

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

내용 없음No content

Description

피복 두께 측정장치 및 방법Coating thickness measuring apparatus and method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 불완전 코어형 변압기에 관련된 전기회로의 계통도 및 코어, 착용성 저항 삽입부, 피복물질 및 기본물질을 통과하는 자속선을 나타내는 불완전 코어형 변압기의 측면도. 제2도는 1차권선에 인가된 전압이 일정하게 유지되는 선택적인 실시예의 개략 계통도.1 is a side view of an incomplete core type transformer showing a schematic diagram of an electric circuit related to an incomplete core type transformer and magnetic flux lines passing through the core, wearable resistance insert, sheath material and the base material. 2 is a schematic diagram of an alternative embodiment in which the voltage applied to the primary winding is kept constant.

Claims (11)

상이한 투자성을 가진 자속 도전성 기본물질 위에 있는 자속 도전성 피복물질의 두께를 결정하는 장치에 있어서, 불완전 변압기코어의 일부를 둘러싸고 있는 1차권선, 이것의 일부를 둘러싸고 있는 2차권선 및 제1단부와 제2단부를 갖고 있는 불완전 변압기코어, 상기 불완전 변압기코어의 상기 1차권선에 교류전압을 부과시키기 위한 장치, 2개의 전압의 크기의 비를 결정하기 위한 장치, 상기 전압비결정장치에 상기 1차권선에 인가될 때 상기 전압비 결정장치가 피복두께를 비파괴적으로 측정하는 1차전압과 2차전압의 비를 나타내고 상이한 투자성을 가진 자속 도전성 기본물질 위에 있는 자속 도전성 피복물질이 상기 불완전 변압기코어의 코어를 완전하게 하도록 상기 전압비 결정장치에 상기 제2권선을 접속시키기 위한 장치를 포함하는 것을 특징으로 하는 피복두께 측정장치.A device for determining the thickness of a magnetically conductive conductive coating on a magnetically conductive conductive material having different permeability, comprising: a primary winding surrounding a portion of an incomplete transformer core, a secondary winding surrounding a portion thereof, and a first end; An incomplete transformer core having a second end, an apparatus for imposing an alternating voltage on the primary winding of the incomplete transformer core, an apparatus for determining a ratio of magnitudes of two voltages, the primary winding to the voltage determining apparatus When applied to the core of the incomplete transformer core, the flux-conducting sheath material exhibits a ratio of primary voltage and secondary voltage that non-destructively measures the coating thickness and is on the flux-conductive base material with different permeability. And a device for connecting the second winding to the voltage ratio determining device so as to complete the circuit. Coating thickness measuring apparatus for a. 제1항에 있어서, 자속 도전성 기본물질의 투자성이 자속도전성 피복물질의 투자성보다 큰 것을 특징으로 하는 피복두께 측정장치.The coating thickness measuring apparatus according to claim 1, wherein the magnetic permeability of the magnetic flux conductive base material is larger than that of the magnetic flux conductive coating material. 제1항에 있어서, 상기 불완전 변압기코어의 상기 제1 및 제2단부가 테이퍼되어 있는 것을 특징으로 하는 피복두께 측정장치.The coating thickness measuring apparatus according to claim 1, wherein the first and second ends of the incomplete transformer core are tapered. 제3항에 있어서 마모방지 물질의 삽입물이 상기 테이퍼 단부들의 단부에 삽입되는 것을 특징으로 하는 피복두께 측정장치.4. An apparatus as claimed in claim 3, wherein an insert of wear protection material is inserted at the ends of the tapered ends. 상이한 투자성을 가진 자속 도전성 기본물질 위에 있는 자속도전성 피복물질의 두께를 결정하는 방법에 있어서, 불완전 변압기코어내에 자속을 만드는 수단, 자속통로가 피복두께가 측정되는 물질을 통해 완성되도록 불완전 변압기코어와 접촉하여 피복두께가 측정되는 물질을 배치시키는 수단, 인가된 전압의 함수로 자속의 크기를 결정하는 수단, 알고있는 피복두께에 대한 인가된 전압의 함수로 자속의 크기를 선정하는 수단 및 피복두께를 얻기 위해서 선정된 자속의 크기와 결정된 자속의 크기를 비교하는 수단을 포함하는 것을 특징으로 하는 피복두께 측정방법.A method of determining the thickness of a magnetically conductive coating on a magnetically conductive conductive material having different permeability, comprising: means for producing magnetic flux in an incomplete transformer core, an incomplete transformer core and a flux path such that the flux path is completed through a material whose coating thickness is measured; Means for placing the material on which the coating thickness is measured in contact, means for determining the magnitude of the magnetic flux as a function of applied voltage, means for selecting the magnitude of the magnetic flux as a function of the applied voltage for a known coating thickness, and coating thickness And a means for comparing the size of the selected magnetic flux with the size of the determined magnetic flux to obtain. 상이한 투자성을 가진 자속 도전성 기본물질 위에 있는 자속도전성 피복물질의 두께를 결정하는 장치에 있어서, 정전압 교류 전원장치, 상기 정전압 교류 전원장치에 접속된 제1단자와 제2단자 및 분배전압 단자를 갖고 있는 제1전압분배기 ; 불완전 변압기코어의 일부로 둘러싸고 있는 1차권선, 이것의 일부를 둘러싸고 있는 2차권선 및 제1 및 제2단부를 갖고 있는 불완전 변압기코어; 상기 불완전 변압기코어의 상기 1차권선에 상기 제1전압분배기의 상기 분배전압 단자와 상기 제2단자를 접속시키기 위한 장치; 일정한 직류전압을 공급하기 위한 장치; 상기 일정한 직류 전압장치에 접속된 상기 제1단자와 제2단자 및 분배전압단자를 갖고 있는 제2전압 분배기; 전압을 측정하기 위한 장치; 상기 전압측정장치에 상기 제2전압 분배기의 상기 분배전압단자와 상기 제2단자를 접속시키기 위한 장치; 및 전압이 상기 1차권선에 인가될때 상기 전압 측정장치가 상기 2차권선에 유도된 전압을 측정하고 상이한 투자성을 가진 상기 자속 도전성 기본물질위에 있는 상기 자속도전성 피복물질이 상기 불완전 변압기코어를 완전하게 하도록 상기 전압측정장치에 상기 2차권선을 접속시키기 위한 장치를 포함하는 것을 특징으로 하는 피복두께 측정장치.A device for determining the thickness of a magnetic conductive coating material on a magnetic flux conductive base material having different permeability, comprising: a constant voltage alternating current power supply, a first terminal and a second terminal connected to said constant voltage alternating current power supply, and a distribution voltage terminal; First voltage divider; An incomplete transformer core having a primary winding surrounded by a portion of the incomplete transformer core, a secondary winding surrounding a portion thereof, and first and second ends; An apparatus for connecting the distribution voltage terminal of the first voltage divider and the second terminal to the primary winding of the incomplete transformer core; A device for supplying a constant direct current voltage; A second voltage divider having said first terminal, said second terminal, and a distribution voltage terminal connected to said constant DC voltage device; A device for measuring a voltage; A device for connecting the divided voltage terminal of the second voltage divider and the second terminal to the voltage measuring device; And when the voltage measuring device measures the voltage induced in the secondary winding when the voltage is applied to the primary winding and the magnetic flux coating material on the magnetic flux conductive base material having different permeability completes the incomplete transformer core. And a device for connecting the secondary winding to the voltage measuring device. 제6항에 있어서, 상기 불완전 변압기코어의 상기 제1 및 제2단부가 테이퍼되어 있는 것을 특징으로 하는 피복두께 측정장치.7. The coating thickness measuring apparatus according to claim 6, wherein the first and second ends of the incomplete transformer core are tapered. 제7항에 있어서, 마모방지 물질의 삽입물이 상기 테이퍼 단부들의 단부에 삽입되는 것을 특징으로 하는 피복두께 측정장치.8. An apparatus as claimed in claim 7, wherein an insert of wear protection material is inserted at the ends of the tapered ends. 제6항에 있어서, 자속 도전성 기본물질의 투자성이 자속도전성 피복물질의 투자성보다 큰 것을 특징으로 하는 피복두께 측정장치.The coating thickness measuring apparatus according to claim 6, wherein the magnetic permeability of the magnetic flux conductive base material is greater than that of the magnetic flux conductive coating material. 상이한 투자성을 가진 자속 도전성 기본물질 위에 있는 자속도전성 피복물질의 두께를 결정하는 방법에 있어서, 불완전 변압기코어의 1차권선에 일정한 교류전압을 인가하는 수단, 자속 도전성 물질의 영향을 받지 않도록 불완전 변압기 코어를 멀리 배치시키는 수단, 전압 측정장치가 상기 불완전 변압기 코어의 2차권선에 유도된 0 전압을 나타낼 때까지 전압 측정장치의 영점조정을 조정하는 수단, 자속통로가 고자속 도전성물질을 통해 완전해지도록 불완전 변압기 코어와 접촉하여 고자속도전성 물질을 배치시키는 수단, 전압 측정장치가 상기 불완전 변압기 코어의 2차권선에 유도된 선정된 전압을 나타낼 때까지 이득제어를 조정하는 수단,상기 5가지의 수단들을 요구하는대로 반복하는 수단,자속통로가 피복두께가 측정되는물질을 통해 완전해지도록 불완전 변압기 코어와 접촉하여 피복두께가 측정되는 물질을 배치시키는 수단, 전압측정장치에 의해 표시된 바와 같이 2차권선에 유도된 전압을 결정하는 수단, 피복물질의 페라이트 용량을 결정하는 수단, 피복두께의 함수로 2차권선에 유도된 전압의 크기를 선정하는 수단 및 피복두께를 얻기 위해서 2차권선에 유도된 전압의 선정된 크기에 2차권선에 유도된 전압의 결정된 크기를 비교하는 수단을 포함하는 것을 특징으로 하는 피복두께 측정방법.A method of determining the thickness of a magnetically conductive coating material on a magnetically conductive material having different permeability, comprising: means for applying a constant alternating voltage to the primary winding of an incomplete transformer core, an imperfect transformer so as not to be affected by the magnetic flux conductive material Means for disposing the core away, means for adjusting the zeroing of the voltage measuring device until the voltage measuring device shows zero voltage induced in the secondary winding of the incomplete transformer core, and the flux path is complete through the high magnetic flux conductive material. Means for arranging a high magnetic flux material in contact with an incomplete transformer core so as to be present, means for adjusting gain control until a voltage measuring device exhibits a predetermined voltage induced in a secondary winding of the incomplete transformer core, the five means The means of repeating as required, the flux path is complete through the material whose coating thickness is measured. Means for placing a substance whose coating thickness is measured in contact with an incomplete transformer core, means for determining the voltage induced in the secondary winding as indicated by the voltage measuring device, means for determining the ferrite capacity of the coating material, coating thickness Means for selecting the magnitude of the voltage induced in the secondary winding as a function of and comparing the determined magnitude of the voltage induced in the secondary winding with a predetermined magnitude of the voltage induced in the secondary winding to obtain a covering thickness. Method for measuring the coating thickness, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8203875A 1981-11-16 1982-08-27 Method and apparatus for nondestructively measurring the thickness of a magnetic flux conductive base material KR860000962B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/322,304 US4507609A (en) 1981-10-14 1981-10-14 Apparatus for nondestructively measuring the thickness of a magnetic flux conductive clad material over a magnetic flux conductive base material of a different permeability
US322304 1981-11-16
US332304 1999-06-14

Publications (2)

Publication Number Publication Date
KR840001335A true KR840001335A (en) 1984-04-30
KR860000962B1 KR860000962B1 (en) 1986-07-23

Family

ID=23254292

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8203875A KR860000962B1 (en) 1981-11-16 1982-08-27 Method and apparatus for nondestructively measurring the thickness of a magnetic flux conductive base material

Country Status (1)

Country Link
KR (1) KR860000962B1 (en)

Also Published As

Publication number Publication date
KR860000962B1 (en) 1986-07-23

Similar Documents

Publication Publication Date Title
JPS61245511A (en) Dc and ac current transformer
GB1502697A (en) Position transducer
ES521689A0 (en) MEASURING TRANSFORMER WITH A MAGNETIC CORE FOR MEASURING DEVICES, INTENDED TO MEASURE ELECTRICAL ALTERNATING CURRENTS.
US4754218A (en) Current sensing apparatus
FR2564594B1 (en) CURRENT SENSOR WITH AMAGNETIC CORE
ES8407576A1 (en) Clad thickness measuring device.
CA2161615A1 (en) Electric Conductivity Measurement Circuit and Probe
US2605302A (en) Direct current measuring apparatus
NZ336255A (en) Measuring current in AC circuit using transformer with two secondary windings with one being short circuited
Lee The analysis of a magnetizing fixture for a multipole Nd-Fe-B magnet
US4331919A (en) Apparatus for magnetic testing ferromagnetic sheet or strip material using rectangular coils
KR840001335A (en) Coating thickness measuring apparatus and method
GB2031155A (en) Isotropic magnetising system
GB1475162A (en) Meidensha kk device for and method of detecting short circuit in a transfor mer winding
JPS55125688A (en) Hall effect device
US2907945A (en) Transformer with magnetic shunt control
ATE6699T1 (en) MEASURING DEVICE FOR ELECTRICAL CURRENT.
SE9804080L (en) Electrical measuring component and use thereof
US2689331A (en) Apparatus for testing electromagnetic fields
US3345559A (en) Method of measuring the thickness of magnetic metal plates by measuring the variation of magnetic potential difference across said plates
SU124028A1 (en) Device for controlling the structure and chemical composition of a tape or wire of a ferromagnetic material
SU773545A1 (en) Method and apparatus for determining magnetic losses in the sheet of electric machine stator
JPS5793264A (en) Detector for high-frequency current
SU1190303A2 (en) Apparatus for measuring electric conductance
SU842659A1 (en) Device for measuring low-magnetic substance magnetic susceptibility