FR2368027A1 - PRESSURE DETECTOR - Google Patents

PRESSURE DETECTOR

Info

Publication number
FR2368027A1
FR2368027A1 FR7703813A FR7703813A FR2368027A1 FR 2368027 A1 FR2368027 A1 FR 2368027A1 FR 7703813 A FR7703813 A FR 7703813A FR 7703813 A FR7703813 A FR 7703813A FR 2368027 A1 FR2368027 A1 FR 2368027A1
Authority
FR
France
Prior art keywords
piston
cylinder
circuit
pressure detector
chambers
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
FR7703813A
Other languages
French (fr)
Other versions
FR2368027B1 (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.)
Ebosa SA
Original Assignee
Ebosa 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 Ebosa SA filed Critical Ebosa SA
Publication of FR2368027A1 publication Critical patent/FR2368027A1/en
Application granted granted Critical
Publication of FR2368027B1 publication Critical patent/FR2368027B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
    • G01L7/163—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons construction or mounting of pistons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B13/00—Measuring arrangements characterised by the use of fluids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/12—Alarms or signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Measuring Fluid Pressure (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Appareils détecteurs, utilisables dans certaines installations de contrôle, et comprenant un interrupteur actionné selon le résultat du contrôle et capable de donner alors un signal électrique. Selon l'invention, l'interrupteur est du type à induction 7. Son extrémité pénètre dans le cylindre 2a et la paroi du piston 5 l'entoure. Le piston 5 sépare le cylindre en deux chambres dont l'une est dans le circuit d'une conduite de détection, tandis que l'autre se trouve dans le circuit d'une conduite de référence. Les différences de pression entre ces deux chambres provoquent le déplacement du piston.Detection apparatus, usable in certain control installations, and comprising a switch actuated according to the result of the control and capable of giving an electrical signal. According to the invention, the switch is of the induction type 7. Its end penetrates into the cylinder 2a and the wall of the piston 5 surrounds it. The piston 5 separates the cylinder into two chambers, one of which is in the circuit of a detection line, while the other is in the circuit of a reference line. The pressure differences between these two chambers cause the piston to move.

FR7703813A 1976-10-14 1977-02-10 PRESSURE DETECTOR Granted FR2368027A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1301276A CH600539A5 (en) 1976-10-14 1976-10-14

Publications (2)

Publication Number Publication Date
FR2368027A1 true FR2368027A1 (en) 1978-05-12
FR2368027B1 FR2368027B1 (en) 1982-05-14

Family

ID=4388485

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7703813A Granted FR2368027A1 (en) 1976-10-14 1977-02-10 PRESSURE DETECTOR

Country Status (5)

Country Link
CH (1) CH600539A5 (en)
DE (1) DE2656107A1 (en)
FR (1) FR2368027A1 (en)
GB (1) GB1573752A (en)
IT (1) IT1082213B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923884C2 (en) * 1989-07-19 1994-08-04 Heidelberger Druckmasch Ag Device for scanning the height of cardboard or paper stacks on the delivery or feeder of a printing press

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351744A (en) * 1963-03-01 1964-02-07 Werdau Massindustrie Veb Pressure adjustment method, especially for low gas pressure
US3178931A (en) * 1961-04-13 1965-04-20 Moore Products Co Pneumatic measuring apparatus
GB1150137A (en) * 1966-09-15 1969-04-30 Taft Peirce Mfg Co Fluid gage apparatus of the rotameter type.
US3632923A (en) * 1969-09-24 1972-01-04 Nasa Flow-rate switch
CH525469A (en) * 1970-06-19 1972-07-15 Marchand & Cie S A R Pneumatic measuring device
US3822584A (en) * 1972-11-09 1974-07-09 Freeland Gauge Co Air flow gaging device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178931A (en) * 1961-04-13 1965-04-20 Moore Products Co Pneumatic measuring apparatus
FR1351744A (en) * 1963-03-01 1964-02-07 Werdau Massindustrie Veb Pressure adjustment method, especially for low gas pressure
GB1150137A (en) * 1966-09-15 1969-04-30 Taft Peirce Mfg Co Fluid gage apparatus of the rotameter type.
US3632923A (en) * 1969-09-24 1972-01-04 Nasa Flow-rate switch
CH525469A (en) * 1970-06-19 1972-07-15 Marchand & Cie S A R Pneumatic measuring device
US3822584A (en) * 1972-11-09 1974-07-09 Freeland Gauge Co Air flow gaging device

Also Published As

Publication number Publication date
FR2368027B1 (en) 1982-05-14
DE2656107A1 (en) 1978-04-20
CH600539A5 (en) 1978-06-15
GB1573752A (en) 1980-08-28
IT1082213B (en) 1985-05-21

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Legal Events

Date Code Title Description
ST Notification of lapse