GB1436559A - Cover meter - Google Patents

Cover meter

Info

Publication number
GB1436559A
GB1436559A GB4708672A GB4708672A GB1436559A GB 1436559 A GB1436559 A GB 1436559A GB 4708672 A GB4708672 A GB 4708672A GB 4708672 A GB4708672 A GB 4708672A GB 1436559 A GB1436559 A GB 1436559A
Authority
GB
United Kingdom
Prior art keywords
cover meter
meter
cover
wcrawford
attraction
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
GB4708672A
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
Priority to GB4708672A priority Critical patent/GB1436559A/en
Publication of GB1436559A publication Critical patent/GB1436559A/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
    • G01B7/105—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 for measuring thickness of coating

Abstract

1436559 Electro-physical measurement WCRAWFORD 7 May 1974 [12 Oct 1972] 47086/72 Heading GIN In apparatus for measuring e.g. the thickness of concrete 12 over a reinforcing bar 13, using the attraction of a magnet 1 mounted on a pivoted arm 2, the restoring force is provided by opposed magnets 4, 5 (instead of the more usual spring) to provide a more linear scale.
GB4708672A 1972-10-12 1972-10-12 Cover meter Expired GB1436559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4708672A GB1436559A (en) 1972-10-12 1972-10-12 Cover meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4708672A GB1436559A (en) 1972-10-12 1972-10-12 Cover meter

Publications (1)

Publication Number Publication Date
GB1436559A true GB1436559A (en) 1976-05-19

Family

ID=10443668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4708672A Expired GB1436559A (en) 1972-10-12 1972-10-12 Cover meter

Country Status (1)

Country Link
GB (1) GB1436559A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001833A1 (en) * 1981-11-12 1983-05-26 Koch, Frank Coatings thickness and surface roughness comparator
US4433290A (en) * 1981-11-12 1984-02-21 Defelsko Corporation Magnetic coating thickness comparator having parallel magnetic rods with nonmagnetic slide indicators
EP0220457A1 (en) * 1985-10-02 1987-05-06 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Method and apparatus for investigating ferromagnetic objects deposited in non-magnetic materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001833A1 (en) * 1981-11-12 1983-05-26 Koch, Frank Coatings thickness and surface roughness comparator
US4433290A (en) * 1981-11-12 1984-02-21 Defelsko Corporation Magnetic coating thickness comparator having parallel magnetic rods with nonmagnetic slide indicators
EP0220457A1 (en) * 1985-10-02 1987-05-06 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Method and apparatus for investigating ferromagnetic objects deposited in non-magnetic materials

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee