DE68915527T2 - Elektromagnetisches Impulsverfahren zur Detektion von Unregelmässigkeiten an leitfähigen Behältern. - Google Patents

Elektromagnetisches Impulsverfahren zur Detektion von Unregelmässigkeiten an leitfähigen Behältern.

Info

Publication number
DE68915527T2
DE68915527T2 DE68915527T DE68915527T DE68915527T2 DE 68915527 T2 DE68915527 T2 DE 68915527T2 DE 68915527 T DE68915527 T DE 68915527T DE 68915527 T DE68915527 T DE 68915527T DE 68915527 T2 DE68915527 T2 DE 68915527T2
Authority
DE
Germany
Prior art keywords
irregularities
detection
electromagnetic pulse
pulse method
conductive containers
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 - Fee Related
Application number
DE68915527T
Other languages
English (en)
Other versions
DE68915527D1 (de
Inventor
Michael F Gard
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.)
Phillips Petroleum Co
Original Assignee
Atlantic Richfield Co
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 Atlantic Richfield Co filed Critical Atlantic Richfield Co
Publication of DE68915527D1 publication Critical patent/DE68915527D1/de
Application granted granted Critical
Publication of DE68915527T2 publication Critical patent/DE68915527T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
DE68915527T 1988-12-29 1989-12-21 Elektromagnetisches Impulsverfahren zur Detektion von Unregelmässigkeiten an leitfähigen Behältern. Expired - Fee Related DE68915527T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/291,608 US4906928A (en) 1988-12-29 1988-12-29 Transient electromagnetic apparatus with receiver having digitally controlled gain ranging amplifier for detecting irregularities on conductive containers

Publications (2)

Publication Number Publication Date
DE68915527D1 DE68915527D1 (de) 1994-06-30
DE68915527T2 true DE68915527T2 (de) 1994-10-20

Family

ID=23121010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68915527T Expired - Fee Related DE68915527T2 (de) 1988-12-29 1989-12-21 Elektromagnetisches Impulsverfahren zur Detektion von Unregelmässigkeiten an leitfähigen Behältern.

Country Status (8)

Country Link
US (1) US4906928A (de)
EP (1) EP0379804B1 (de)
JP (1) JP2834813B2 (de)
AU (1) AU612533B2 (de)
CA (1) CA2005549C (de)
DE (1) DE68915527T2 (de)
HK (1) HK1005471A1 (de)
NO (1) NO302634B1 (de)

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CN103180760B (zh) 2010-10-07 2016-10-26 梅特勒-托利多安全线有限公司 用于操作金属探测系统的方法以及金属探测系统
EP2439560B1 (de) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Verfahren für den Betrieb eines Metalldetektionssystems und Metalldetektionssystem
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus
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CN102944340B (zh) * 2012-11-10 2014-07-23 大连理工大学 一种用于压电智能骨料地震损伤监测系统的电荷电压转换器
US8723512B1 (en) 2012-11-26 2014-05-13 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a magnetic field sensor based on a peak signal associated with a prior cycle of a magnetic field signal
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EP3117187B1 (de) 2014-03-11 2018-06-13 Allegro MicroSystems, LLC Magnetfeldsensor, welcher einen mindestabstand zwischen schwellenwerten einhält, und entsprechendes erfassungsverfahren
CN107797150B (zh) * 2017-11-22 2023-09-15 中国地质大学（武汉） 一种瞬变电磁仪接收机
US11029176B2 (en) 2019-05-07 2021-06-08 Allegro Microsystems, Llc System and method for vibration detection with no loss of position information using a magnetic field sensor
US11125590B2 (en) 2019-05-07 2021-09-21 Allegro Microsystems, Llc System and method for vibration detection with direction change response immunity using a magnetic field sensor
CN110255118B (zh) * 2019-06-04 2021-01-05 仵军红 一种具有筛选功能的食品检测传送装置
CN112179980B (zh) * 2020-10-27 2022-06-14 电子科技大学 一种基于阵列涡流的旋压筒体表面缺陷在线自动识别方法

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CA2005551C (en) * 1988-12-29 1999-08-31 Pedro F. Lara Transient electromagnetic method for detecting irregularities on conductive containers having variations in jacket thickness

Also Published As

Publication number Publication date
EP0379804B1 (de) 1994-05-25
US4906928A (en) 1990-03-06
DE68915527D1 (de) 1994-06-30
EP0379804A2 (de) 1990-08-01
AU4736489A (en) 1990-07-05
NO895276L (no) 1990-07-02
JPH02298852A (ja) 1990-12-11
JP2834813B2 (ja) 1998-12-14
NO895276D0 (no) 1989-12-27
NO302634B1 (no) 1998-03-30
CA2005549C (en) 2000-04-25
AU612533B2 (en) 1991-07-11
EP0379804A3 (de) 1991-03-06
CA2005549A1 (en) 1990-06-29
HK1005471A1 (en) 1999-01-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILLIPS PETROLEUM CO. (N.D.GES.D. STAATES DELAWAR

8339 Ceased/non-payment of the annual fee