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FR2365106A1 - Contactless object presence and position detection - involves measurement of fluid overpressure using sensitive nozzle arrangement - Google Patents

Contactless object presence and position detection - involves measurement of fluid overpressure using sensitive nozzle arrangement

Info

Publication number
FR2365106A1
FR2365106A1 FR7628284A FR7628284A FR2365106A1 FR 2365106 A1 FR2365106 A1 FR 2365106A1 FR 7628284 A FR7628284 A FR 7628284A FR 7628284 A FR7628284 A FR 7628284A FR 2365106 A1 FR2365106 A1 FR 2365106A1
Authority
FR
France
Prior art keywords
fluid
position detection
nozzle arrangement
volume
object presence
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.)
Granted
Application number
FR7628284A
Other languages
French (fr)
Other versions
FR2365106B1 (en
Inventor
Christian Delarue
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
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 Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to FR7628284A priority Critical patent/FR2365106A1/en
Priority to DE19772742012 priority patent/DE2742012A1/en
Priority to JP11226577A priority patent/JPS5374059A/en
Publication of FR2365106A1 publication Critical patent/FR2365106A1/en
Application granted granted Critical
Publication of FR2365106B1 publication Critical patent/FR2365106B1/fr
Granted 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
    • G01D5/42—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 using fluid means
    • G01D5/44—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 using fluid means using jets of fluid
    • G01D5/46—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 using fluid means using jets of fluid by deflecting or throttling the flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/005—Circuit elements having no moving parts for measurement techniques, e.g. measuring from a distance; for detection devices, e.g. for presence detection; for sorting measured properties (testing); for gyrometers; for analysis; for chromatography

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A method is used for contactless detection of the presence and then the position of an object of small dimensions, e.g. a fibre, in a volume bounded by two opposite flat walls. The method is designed for increased sensitivity and reduced energy of the fluid used. Two nozzles project fluid into the vol. and the excess pressure caused by the object is measured. The volume height is little larger than the known cross-section of the object so that it resembles a flat two-dimensional space. The approximately two-dimensional nozzles (7, 7b) inject flat fluid flow into the volume plane. The flows run together at a point near the approximate object location where a press, pick-off opening is positioned.
FR7628284A 1976-09-21 1976-09-21 Contactless object presence and position detection - involves measurement of fluid overpressure using sensitive nozzle arrangement Granted FR2365106A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7628284A FR2365106A1 (en) 1976-09-21 1976-09-21 Contactless object presence and position detection - involves measurement of fluid overpressure using sensitive nozzle arrangement
DE19772742012 DE2742012A1 (en) 1976-09-21 1977-09-17 PROCEDURE FOR CONTACT-FREE CHECKING OF THE PRESENCE AND POSSIBLE LOCATION OF AN OBJECT AND DEVICES FOR PERFORMING THE PROCESS, AS WELL AS APPLICATIONS OF THE PROCESS AND DEVICE
JP11226577A JPS5374059A (en) 1976-09-21 1977-09-20 Nonncontact detector for presence or location of materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7628284A FR2365106A1 (en) 1976-09-21 1976-09-21 Contactless object presence and position detection - involves measurement of fluid overpressure using sensitive nozzle arrangement

Publications (2)

Publication Number Publication Date
FR2365106A1 true FR2365106A1 (en) 1978-04-14
FR2365106B1 FR2365106B1 (en) 1981-11-20

Family

ID=9177885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7628284A Granted FR2365106A1 (en) 1976-09-21 1976-09-21 Contactless object presence and position detection - involves measurement of fluid overpressure using sensitive nozzle arrangement

Country Status (3)

Country Link
JP (1) JPS5374059A (en)
DE (1) DE2742012A1 (en)
FR (1) FR2365106A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468565A1 (en) * 1979-11-02 1981-05-08 Keramik Wtb Veb METHOD AND DEVICE FOR POSITIONING FLAT CERAMIC DISHWASHER WITH A FESTON
FR2621155A1 (en) * 1987-09-28 1989-03-31 Edet Robert Device allowing the writing and display of messages intended for the public

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468565A1 (en) * 1979-11-02 1981-05-08 Keramik Wtb Veb METHOD AND DEVICE FOR POSITIONING FLAT CERAMIC DISHWASHER WITH A FESTON
FR2621155A1 (en) * 1987-09-28 1989-03-31 Edet Robert Device allowing the writing and display of messages intended for the public

Also Published As

Publication number Publication date
JPS5374059A (en) 1978-07-01
DE2742012A1 (en) 1978-04-06
FR2365106B1 (en) 1981-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse