AT388454B - DEVICE FOR MONITORING THE SPEED OF A GAS FLOW IN A CHANNEL - Google Patents

DEVICE FOR MONITORING THE SPEED OF A GAS FLOW IN A CHANNEL

Info

Publication number
AT388454B
AT388454B AT0269984A AT269984A AT388454B AT 388454 B AT388454 B AT 388454B AT 0269984 A AT0269984 A AT 0269984A AT 269984 A AT269984 A AT 269984A AT 388454 B AT388454 B AT 388454B
Authority
AT
Austria
Prior art keywords
monitoring
channel
speed
gas flow
gas
Prior art date
Application number
AT0269984A
Other languages
German (de)
Other versions
ATA269984A (en
Original Assignee
Securiton 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 Securiton Ag filed Critical Securiton Ag
Publication of ATA269984A publication Critical patent/ATA269984A/en
Application granted granted Critical
Publication of AT388454B publication Critical patent/AT388454B/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • 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
    • 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
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Analytical Chemistry (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
AT0269984A 1983-08-30 1984-08-23 DEVICE FOR MONITORING THE SPEED OF A GAS FLOW IN A CHANNEL AT388454B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3331203A DE3331203C2 (en) 1983-08-30 1983-08-30 Device for monitoring the velocity of a gas flow in a channel

Publications (2)

Publication Number Publication Date
ATA269984A ATA269984A (en) 1988-11-15
AT388454B true AT388454B (en) 1989-06-26

Family

ID=6207778

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0269984A AT388454B (en) 1983-08-30 1984-08-23 DEVICE FOR MONITORING THE SPEED OF A GAS FLOW IN A CHANNEL

Country Status (7)

Country Link
AT (1) AT388454B (en)
BE (1) BE900472A (en)
CH (1) CH666356A5 (en)
DE (1) DE3331203C2 (en)
FR (1) FR2551215B1 (en)
IT (1) IT1198912B (en)
NL (1) NL191246C (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8800634A (en) * 1988-03-15 1989-10-02 Westinghouse Elektrotechniek E DEVICE FOR MONITORING THE EXHAUST PIPE (S) OF A SMOKE / GAS DETECTION SYSTEM.
DE3811431A1 (en) * 1988-04-05 1989-10-19 Maria Dobosne Gyulai Sensor arrangement for detecting gaseous components
DE4236559A1 (en) * 1992-10-02 1994-04-07 Kobold Klaus Calorimetric flow switch calibration method
DE4428694C2 (en) * 1994-08-12 1996-06-20 Wagner Alarm Sicherung Air pressure compensated fire detection device and method
JPH0989618A (en) * 1995-09-25 1997-04-04 Smc Corp Flow-rate detection switch
DE29518042U1 (en) * 1995-11-14 1996-01-25 Wagner Alarm- und Sicherungssysteme GmbH, 30853 Langenhagen Fire detector
DE19605637C1 (en) * 1996-02-15 1997-05-07 Wagner Alarm Sicherung Air current monitoring in fire alarm using two flow sensors
DE19628456C2 (en) * 1996-07-15 2001-03-15 Wagner Alarm Sicherung Air filter
DE19830340C1 (en) * 1998-07-07 1999-11-11 Siemens Ag Regulation of cooling air filters for motors working under icy conditions
DE10140510B4 (en) * 2001-08-17 2004-02-05 Carl Freudenberg Kg Method and device for monitoring the service life of a filter
AU2003902318A0 (en) 2003-05-14 2003-05-29 Vision Fire And Security Pty Ltd Improved Sensing Apparatus And Method
AU2004274988B2 (en) * 2003-09-24 2009-07-23 Garrett Thermal Systems Limited Method and apparatus for determining operational condition of pollution monitoring equipment
EP1665189B1 (en) * 2003-09-24 2011-02-09 Xtralis Technologies Ltd Method and apparatus for determining operational condition of pollution monitoring equipment
FR2871875B1 (en) * 2004-06-16 2006-07-28 Air Liquide METHOD FOR CONTROLLING VENTILATION IN A CONDUIT
DE102004044094A1 (en) 2004-09-09 2006-03-30 Hekatron Vertriebs Gmbh Intake fire detector and method of operation
DE102005051123B4 (en) * 2005-10-24 2007-10-18 Smartgas Mikrosensorik Gmbh Gas alarm with a function to detect tampering and to monitor a gas alarm
DE102007013295A1 (en) * 2007-03-16 2008-09-18 Aoa Apparatebau Gauting Gmbh smoke detector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992940A (en) * 1973-11-02 1976-11-23 Chrysler Corporation Solid state fluid flow sensor
US4135396A (en) * 1978-04-24 1979-01-23 The Trane Company Temperature compensating fluid velocity sensing apparatus
DE2914275A1 (en) * 1978-04-10 1979-10-18 Hitachi Ltd AIR FLOW MEASURING DEVICE
DE2947856A1 (en) * 1979-11-28 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR MEASURING THE MASS OF A FLOWING MEDIUM
EP0078427A2 (en) * 1981-10-16 1983-05-11 Hitachi, Ltd. Air flow meter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD67054A (en) *
DD66378A (en) *
US2947938A (en) * 1954-04-09 1960-08-02 Victory Engineering Corp Electrothermal measuring apparatus and method for the calibration thereof
DE1061627B (en) 1956-02-16 1959-07-16 Pyrene Co Ltd United smoke tracer and fire extinguishing system
GB966343A (en) * 1961-12-05 1964-08-12 British Petroleum Co Improvements relating to gas testing
DE1473190B1 (en) * 1963-10-09 1970-01-15 Schaller Dipl Ing Werner Device for monitoring the flow of a medium
GB1086742A (en) * 1964-03-13 1967-10-11 English Electric Co Ltd Gas flow detectors
US3900819A (en) * 1973-02-07 1975-08-19 Environmental Instruments Thermal directional fluid flow transducer
SE391036B (en) * 1973-12-03 1977-01-31 Elektronik Konstruktions Ab DEVICE FOR SATURATION AND / OR MONITORING THE FLOW SPEED OF A FLOWING MEDIUM
US3991613A (en) * 1975-03-10 1976-11-16 Corning Glass Works Sensing element for flow meter
GB1562488A (en) 1975-11-19 1980-03-12 Lucas Industries Ltd Apparatus for indicating rate of ice eccretion
GB1600988A (en) * 1978-05-08 1981-10-21 Shipowners Cargo Res Assoc Refrigerated containers including airflow indicator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992940A (en) * 1973-11-02 1976-11-23 Chrysler Corporation Solid state fluid flow sensor
DE2914275A1 (en) * 1978-04-10 1979-10-18 Hitachi Ltd AIR FLOW MEASURING DEVICE
US4135396A (en) * 1978-04-24 1979-01-23 The Trane Company Temperature compensating fluid velocity sensing apparatus
DE2947856A1 (en) * 1979-11-28 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR MEASURING THE MASS OF A FLOWING MEDIUM
EP0078427A2 (en) * 1981-10-16 1983-05-11 Hitachi, Ltd. Air flow meter

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
F.X. EDER, ARBEITSMETHODEN DER THERMODYNAMIK, BAND 1, TEMPERATURMESSUNG, SPRINGER VERLAG 1981, SEITE 80-86 *
J. NIEBUHR, PHYSIKALISCHE MESSTECHNIK, BAND 1, AUFNEHMER UND ANPASSER, R. OLDENBOURG VERLAG, 1977 SEITE 41-43 *

Also Published As

Publication number Publication date
NL8402448A (en) 1985-03-18
CH666356A5 (en) 1988-07-15
ATA269984A (en) 1988-11-15
FR2551215B1 (en) 1988-08-19
NL191246C (en) 1995-04-03
IT8409485A0 (en) 1984-08-22
IT1198912B (en) 1988-12-21
FR2551215A1 (en) 1985-03-01
BE900472A (en) 1985-02-28
DE3331203C2 (en) 1987-05-07
DE3331203A1 (en) 1985-03-14
NL191246B (en) 1994-11-01

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee