FR2344888A1 - CAPACITIVE DISTANCE MEASUREMENT DEVICE - Google Patents

CAPACITIVE DISTANCE MEASUREMENT DEVICE

Info

Publication number
FR2344888A1
FR2344888A1 FR7708222A FR7708222A FR2344888A1 FR 2344888 A1 FR2344888 A1 FR 2344888A1 FR 7708222 A FR7708222 A FR 7708222A FR 7708222 A FR7708222 A FR 7708222A FR 2344888 A1 FR2344888 A1 FR 2344888A1
Authority
FR
France
Prior art keywords
measurement device
distance measurement
capacitive distance
capacitive
measurement
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Withdrawn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
FR7708222A
Other languages
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2344888A1 publication Critical patent/FR2344888A1/en
Withdrawn legal-status Critical Current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
    • G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0914—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by non-optical methods, e.g. capacitive
FR7708222A 1976-03-19 1977-03-18 CAPACITIVE DISTANCE MEASUREMENT DEVICE Withdrawn FR2344888A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1112276A GB1577134A (en) 1976-03-19 1976-03-19 Capacitance distance control apparatus

Publications (1)

Publication Number Publication Date
FR2344888A1 true FR2344888A1 (en) 1977-10-14

Family

ID=9980444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7708222A Withdrawn FR2344888A1 (en) 1976-03-19 1977-03-18 CAPACITIVE DISTANCE MEASUREMENT DEVICE

Country Status (6)

Country Link
JP (1) JPS52125351A (en)
AU (1) AU506893B2 (en)
DE (1) DE2711925C3 (en)
FR (1) FR2344888A1 (en)
GB (1) GB1577134A (en)
NL (1) NL7702978A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346805A1 (en) * 1976-04-02 1977-10-28 Sony Corp SERVOMECHANICS FOR RECORDING AND READING DEVICES WITH SUPPORT

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134342A1 (en) * 1981-08-31 1983-03-10 Ingenieure Block + Seichter, 3000 Hannover Electronic capacitive measuring head for distance measurements
US4982333A (en) * 1988-10-13 1991-01-01 At&T Bell Laboratories Capacitance guided assembly of parts
DE4415249A1 (en) * 1994-04-30 1995-11-02 Thomson Brandt Gmbh Recorder using magneto-optical disc
DE102006044235B4 (en) * 2006-09-15 2021-02-11 Leica Microsystems Cms Gmbh Arrangement for determining the distance, capacitive distance sensor and method for automatic focusing of a microscope
CN111982161A (en) * 2020-07-30 2020-11-24 拉扎斯网络科技（上海）有限公司 Conductor object position determining method and device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935681A (en) * 1956-08-31 1960-05-03 Gen Electric Contour measuring method and probe
GB1062783A (en) * 1965-01-28 1967-03-22 Mayer Ferdy Means for monitoring the surface of an object

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1258910A (en) * 1968-05-07 1971-12-30
US3706919A (en) * 1970-08-17 1972-12-19 Ade Corp Capacitive gauge
NL7211998A (en) * 1972-09-02 1974-03-05
DE2407065C2 (en) * 1974-02-14 1984-10-18 Messer Griesheim Gmbh, 6000 Frankfurt Device for capacitive distance measurement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935681A (en) * 1956-08-31 1960-05-03 Gen Electric Contour measuring method and probe
GB1062783A (en) * 1965-01-28 1967-03-22 Mayer Ferdy Means for monitoring the surface of an object

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346805A1 (en) * 1976-04-02 1977-10-28 Sony Corp SERVOMECHANICS FOR RECORDING AND READING DEVICES WITH SUPPORT

Also Published As

Publication number Publication date
GB1577134A (en) 1980-10-22
DE2711925C3 (en) 1981-09-10
DE2711925B2 (en) 1980-09-18
AU2339077A (en) 1978-09-21
AU506893B2 (en) 1980-01-24
DE2711925A1 (en) 1977-09-29
NL7702978A (en) 1977-09-21
JPS52125351A (en) 1977-10-21

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Legal Events

Date Code Title Description
ST Notification of lapse