GB693675A - Magnetic instruments for measuring the thickness of thin films - Google Patents

Magnetic instruments for measuring the thickness of thin films

Info

Publication number
GB693675A
GB693675A GB23707/51A GB2370751A GB693675A GB 693675 A GB693675 A GB 693675A GB 23707/51 A GB23707/51 A GB 23707/51A GB 2370751 A GB2370751 A GB 2370751A GB 693675 A GB693675 A GB 693675A
Authority
GB
United Kingdom
Prior art keywords
magnet
measuring
thickness
pull
spring
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB23707/51A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB693675A publication Critical patent/GB693675A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB23707/51A 1949-04-05 1951-10-11 Magnetic instruments for measuring the thickness of thin films Expired GB693675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE693675X 1949-04-05

Publications (1)

Publication Number Publication Date
GB693675A true GB693675A (en) 1953-07-01

Family

ID=6605092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23707/51A Expired GB693675A (en) 1949-04-05 1951-10-11 Magnetic instruments for measuring the thickness of thin films

Country Status (2)

Country Link
BE (1) BE514302A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
GB (1) GB693675A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716779A (en) * 1971-02-01 1973-02-13 Otdel Fiz Nerazrushajuschego Magnetic spring-controlled winding apparatus for gaging the thickness of non-magnetic coatings on metal products
CN110160480A (zh) * 2019-05-31 2019-08-23 湖南科美达电气股份有限公司 一种测量被吸物平均气隙的装置及测试方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716779A (en) * 1971-02-01 1973-02-13 Otdel Fiz Nerazrushajuschego Magnetic spring-controlled winding apparatus for gaging the thickness of non-magnetic coatings on metal products
CN110160480A (zh) * 2019-05-31 2019-08-23 湖南科美达电气股份有限公司 一种测量被吸物平均气隙的装置及测试方法

Also Published As

Publication number Publication date
BE514302A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Similar Documents

Publication Publication Date Title
GB693675A (en) Magnetic instruments for measuring the thickness of thin films
US2033654A (en) Magnetic measurement
Kelly Magnetic field measurements with peaking strips
US2834938A (en) Method and apparatus for measuring thickness
US3521160A (en) Method of making a magnetic gauge for measuring thickness of non-magnetic layers on ferromagnetic supports
Biorci et al. Frequency spectrum of the Barkhausen noise
GB575150A (en) Improvements in or relating to devices for testing the thickness of coatings on ferro-magnetic materials
US2924397A (en) Permanent magnet tension device
US4160208A (en) Method of calibrating magnetic thickness gauges
USRE19600E (en) Apparatus fob making magnetic
SU96321A1 (ru) Прибор дл определени толщины сло гальванических лакокрасочных и других покрытий
SU103647A2 (ru) Приспособление дл устранени вли ни размеров ферромагнитных изделий и их магнитных свойств при измерении толщины покрытий на результаты измерений
GB542968A (en) Improvements in magnetic apparatus for measuring the thickness of thin layers
GB601490A (en) Improvements in or relating to apparatus for measuring the thickness of non-magneticcoatings on magnetic articles
SU105091A1 (ru) Прибор дл измерени толщины немагнитных покрытий на издели х из ферромагнитного материала
SU144546A1 (ru) Магнитометр
GB645777A (en) Improvements in or relating to apparatus for measuring the thickness of non-magneticcoatings on magnetic materials
SU771580A1 (ru) Устройство дл измерени параметров магнитного пол
SU693243A1 (ru) Устройство дл определени механических параметров ферромагнитных изделий
JPS56101527A (en) Measuring device of stress
GB1144538A (en) Improvements in or relating to devices for measuring the thickness of members of ferromagnetic material
RU1798617C (ru) Способ измерени толщины немагнитного покрыти на ферромагнитном основании
GB562563A (en) Improvements in or relating to magnetic means for the detection of the quality of steel
SU64357A1 (ru) Устройство дл измерени толщины различных материалов
US2869075A (en) Magnet calibrating stabilizer