FR2125255A1 - Flow meter - using thermosensor in a null method circuit - Google Patents

Flow meter - using thermosensor in a null method circuit

Info

Publication number
FR2125255A1
FR2125255A1 FR7136252A FR7136252A FR2125255A1 FR 2125255 A1 FR2125255 A1 FR 2125255A1 FR 7136252 A FR7136252 A FR 7136252A FR 7136252 A FR7136252 A FR 7136252A FR 2125255 A1 FR2125255 A1 FR 2125255A1
Authority
FR
France
Prior art keywords
sensor
temp
thermosensor
flow meter
esp
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Withdrawn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
FR7136252A
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.)
Zellweger Uster AG
Original Assignee
Zellweger Uster AG
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 Zellweger Uster AG filed Critical Zellweger Uster AG
Publication of FR2125255A1 publication Critical patent/FR2125255A1/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Withdrawn legal-status Critical Current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
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
    • G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Quality & Reliability (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Esp. for determining the velocity of thread (monitoring) in textile machinery a temp. sensor is placed so that it is subjected to the influence of the moving medium and is held at a constant temp. by an external heater thermally coupled to it, the energy supply to that heater being controlled directly by a bridge circuit controlled in turn by the volt drop across the sensor. This energy supply is measured and is a scale of velocity of the medium past the sensor which is esp. a neg. temp. coefficient (NTC) thermistor, a similar thermistor being in the other arm of the bridge.
FR7136252A 1971-02-17 1971-10-08 Flow meter - using thermosensor in a null method circuit Withdrawn FR2125255A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH230071A CH528084A (en) 1971-02-17 1971-02-17 Heat-sensitive device and use of the same

Publications (1)

Publication Number Publication Date
FR2125255A1 true FR2125255A1 (en) 1972-09-29

Family

ID=4230559

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7136252A Withdrawn FR2125255A1 (en) 1971-02-17 1971-10-08 Flow meter - using thermosensor in a null method circuit

Country Status (10)

Country Link
AT (1) AT328346B (en)
AU (1) AU466959B2 (en)
BE (1) BE775171A (en)
CH (1) CH528084A (en)
DD (1) DD95706A5 (en)
DE (1) DE2145460A1 (en)
ES (1) ES399839A1 (en)
FR (1) FR2125255A1 (en)
NL (1) NL7113406A (en)
RO (1) RO61836A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251198A1 (en) * 2001-03-20 2002-10-23 PROTECHNA Herbst GmbH & Co. KG Particle suction device for textile machines and method for monitoring it

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915520A (en) * 1982-07-15 1984-01-26 Toyoda Autom Loom Works Ltd Roll pressurizing apparatus in drafting mechanism
DK170450B1 (en) * 1986-12-12 1995-09-04 Matsushita Electric Ind Co Ltd Thermal sensing system
US4964115A (en) * 1987-12-11 1990-10-16 Matsushita Electric Industrial Co., Ltd. Thermal sensing system
AU626945B2 (en) * 1988-11-07 1992-08-13 Davey Products Pty Ltd Improvements relating to a solid state power supply/ temperature control circuit
DE4030892C2 (en) * 1990-09-29 2000-06-29 Schlafhorst & Co W Winding device on a textile machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251198A1 (en) * 2001-03-20 2002-10-23 PROTECHNA Herbst GmbH & Co. KG Particle suction device for textile machines and method for monitoring it

Also Published As

Publication number Publication date
AU466959B2 (en) 1973-08-02
DD95706A5 (en) 1973-02-12
AU3852572A (en) 1973-08-02
DE2145460A1 (en) 1972-08-31
NL7113406A (en) 1972-08-21
ATA915771A (en) 1975-05-15
CH528084A (en) 1972-09-15
RO61836A (en) 1977-08-15
AT328346B (en) 1976-03-10
ES399839A1 (en) 1975-04-01
BE775171A (en) 1972-03-01

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Legal Events

Date Code Title Description
ST Notification of lapse