GB8815618D0 - Transducer system - Google Patents

Transducer system

Info

Publication number
GB8815618D0
GB8815618D0 GB888815618A GB8815618A GB8815618D0 GB 8815618 D0 GB8815618 D0 GB 8815618D0 GB 888815618 A GB888815618 A GB 888815618A GB 8815618 A GB8815618 A GB 8815618A GB 8815618 D0 GB8815618 D0 GB 8815618D0
Authority
GB
United Kingdom
Prior art keywords
transducer system
transducer
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.)
Withdrawn
Application number
GB888815618A
Other versions
GB2220268A (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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB8815618A priority Critical patent/GB2220268A/en
Publication of GB8815618D0 publication Critical patent/GB8815618D0/en
Publication of GB2220268A publication Critical patent/GB2220268A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/66—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/04—Measuring depth or liquid level
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
    • E21B47/092—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting magnetic anomalies
GB8815618A 1988-06-30 1988-06-30 Transducer system for measuring movement Withdrawn GB2220268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8815618A GB2220268A (en) 1988-06-30 1988-06-30 Transducer system for measuring movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8815618A GB2220268A (en) 1988-06-30 1988-06-30 Transducer system for measuring movement

Publications (2)

Publication Number Publication Date
GB8815618D0 true GB8815618D0 (en) 1988-08-03
GB2220268A GB2220268A (en) 1990-01-04

Family

ID=10639664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8815618A Withdrawn GB2220268A (en) 1988-06-30 1988-06-30 Transducer system for measuring movement

Country Status (1)

Country Link
GB (1) GB2220268A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121010B (en) * 2014-06-20 2017-03-22 重庆迈尔矿山设备开发有限公司 Method for recording drilling depth of drilling machine and coal mine drilling machine capable of measuring and controlling drill hole operating conditions and surroundings

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB896256A (en) * 1957-07-22 1962-05-16 Schweiz Wagons Aufzuegefab Improvements in or relating to a position indicator
DE2215255C2 (en) * 1972-03-29 1974-06-06 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Device for distance measurements in vehicles which are held and guided in a freely floating manner in relation to a rail arrangement
JPS50136059A (en) * 1974-04-16 1975-10-28
GB1538447A (en) * 1976-12-17 1979-01-17 Univ Cardiff Method and apparatus for monitoring exploring or surveying bore holes or other openings in a mineral mass or other body

Also Published As

Publication number Publication date
GB2220268A (en) 1990-01-04

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)