ES342568A1 - Device of detection and measurement of very small displacements. (Machine-translation by Google Translate, not legally binding) - Google Patents

Device of detection and measurement of very small displacements. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES342568A1
ES342568A1 ES342568A ES342568A ES342568A1 ES 342568 A1 ES342568 A1 ES 342568A1 ES 342568 A ES342568 A ES 342568A ES 342568 A ES342568 A ES 342568A ES 342568 A1 ES342568 A1 ES 342568A1
Authority
ES
Spain
Prior art keywords
crystal
translation
machine
legally binding
*** translate
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
ES342568A
Other languages
Spanish (es)
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.)
CENTRAL DES IND ELECTR LAB
Original Assignee
CENTRAL DES IND ELECTR LAB
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
Priority claimed from FR68101A external-priority patent/FR1492982A/en
Priority claimed from FR80186A external-priority patent/FR90934E/en
Application filed by CENTRAL DES IND ELECTR LAB filed Critical CENTRAL DES IND ELECTR LAB
Publication of ES342568A1 publication Critical patent/ES342568A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

Device for detecting and measuring very small displacements, characterized in that it includes, in combination, a photoresist and piezoelectric semiconductor crystal, solid or thin-film-shaped, a light source for irradiation of at least one face of said crystal, a stabilized voltage source whose poles are connected to two contacts arranged on faces on either side of the face, or of the radiated faces, an output circuit that includes at least one impedance at the terminals of which it is connected a device for measuring the frequency of the oscillations of the current that pass through the crystal whose value is a function of the irradiated surface, a screen solidary of the organ whose displacement has to be measured and which is arranged between the crystal and the light source, moving in addition, said screen in a plane parallel to the face capable of receiving the light irradiation. (Machine-translation by Google Translate, not legally binding)
ES342568A 1966-07-04 1967-07-03 Device of detection and measurement of very small displacements. (Machine-translation by Google Translate, not legally binding) Expired ES342568A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR68101A FR1492982A (en) 1966-07-04 1966-07-04 Method for detecting and measuring very small displacements by converting these displacements into oscillations of variable frequency, and device for its implementation
FR80186A FR90934E (en) 1966-10-17 1966-10-17 Method for detecting and measuring very small displacements by converting these displacements into oscillations of variable frequency, and device for its implementation

Publications (1)

Publication Number Publication Date
ES342568A1 true ES342568A1 (en) 1968-12-16

Family

ID=26171762

Family Applications (1)

Application Number Title Priority Date Filing Date
ES342568A Expired ES342568A1 (en) 1966-07-04 1967-07-03 Device of detection and measurement of very small displacements. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
BE (1) BE700094A (en)
ES (1) ES342568A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777360A (en) * 1986-11-24 1988-10-11 Carner Jr Don C Umbra/penumbra detector
FR2646905B1 (en) * 1989-05-10 1995-09-01 Electricfil DISPLACEMENT MEASUREMENT SENSOR
CN110095086B (en) * 2019-06-03 2024-06-07 呜啦啦(广州)科技有限公司 Current type bidirectional bending sensor and preparation method thereof
CN114525144B (en) * 2021-09-10 2024-07-19 上海梅山钢铁股份有限公司 Device for realizing accurate centering of coke pushing rod of coke pushing vehicle

Also Published As

Publication number Publication date
BE700094A (en) 1967-12-18

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