BE900472A - DEVICE FOR MONITORING THE SPEED OF THE FLOW OF A GAS IN A CHANNEL. - Google Patents

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

Info

Publication number
BE900472A
BE900472A BE0/213569A BE213569A BE900472A BE 900472 A BE900472 A BE 900472A BE 0/213569 A BE0/213569 A BE 0/213569A BE 213569 A BE213569 A BE 213569A BE 900472 A BE900472 A BE 900472A
Authority
BE
Belgium
Prior art keywords
gas
monitoring
speed
channel
probe
Prior art date
Application number
BE0/213569A
Other languages
French (fr)
Inventor
H Pieren
P Kunz
M Portenier
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 BE900472A publication Critical patent/BE900472A/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

Abstract

Dispositif de surveillance de la vitesse d'un flux de gaz dans un canal surtout pour le système d'aspiration de fumée d'un détecteur de fumée linéaire multipoint, ce dispositif possédant une sonde (10) qui est formée par un élément sensible à la température chauffé et disposé directement dans le flux de gaz, la sonde (10) étant reliée à un circuit de compensation de la température (11) qui sert à la compensation des variations de la température du gaz, un circuit de comparaison de la valeur de consigne avec la valeur réelle (13) servant à la surveillance de la tension de la sonde (10), qui dépend de la vitesse du gaz.Device for monitoring the speed of a gas flow in a channel, especially for the smoke suction system of a multipoint linear smoke detector, this device having a probe (10) which is formed by an element sensitive to the temperature heated and disposed directly in the gas flow, the probe (10) being connected to a temperature compensation circuit (11) which is used to compensate for variations in the temperature of the gas, a circuit for comparing the value of setpoint with the actual value (13) used for monitoring the voltage of the probe (10), which depends on the gas speed.

BE0/213569A 1983-08-30 1984-08-30 DEVICE FOR MONITORING THE SPEED OF THE FLOW OF A GAS IN A CHANNEL. BE900472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833331203 DE3331203A1 (en) 1983-08-30 1983-08-30 Device for monitoring the velocity of a gas flow in a duct

Publications (1)

Publication Number Publication Date
BE900472A true BE900472A (en) 1985-02-28

Family

ID=6207778

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/213569A BE900472A (en) 1983-08-30 1984-08-30 DEVICE FOR MONITORING THE SPEED OF THE FLOW OF A GAS IN A CHANNEL.

Country Status (7)

Country Link
AT (1) AT388454B (en)
BE (1) BE900472A (en)
CH (1) CH666356A5 (en)
DE (1) DE3331203A1 (en)
FR (1) FR2551215B1 (en)
IT (1) IT1198912B (en)
NL (1) NL191246C (en)

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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 Sicherung 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
ATE498169T1 (en) * 2003-09-24 2011-02-15 Xtralis Technologies Ltd METHOD AND DEVICE FOR DETERMINING THE OPERATIONAL STATE OF POLLUTION MONITORING DEVICES
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

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD66378A (en) *
DD67054A (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
US3992940A (en) * 1973-11-02 1976-11-23 Chrysler Corporation Solid state fluid flow sensor
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
JPS54145166A (en) * 1978-04-10 1979-11-13 Hitachi Ltd Measuring apparatus of suction air flow rates
US4135396A (en) * 1978-04-24 1979-01-23 The Trane Company Temperature compensating fluid velocity sensing apparatus
GB1600988A (en) * 1978-05-08 1981-10-21 Shipowners Cargo Res Assoc Refrigerated containers including airflow indicator
DE2947856A1 (en) * 1979-11-28 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR MEASURING THE MASS OF A FLOWING MEDIUM
JPS5866018A (en) * 1981-10-16 1983-04-20 Hitachi Ltd Air flowmeter

Also Published As

Publication number Publication date
DE3331203A1 (en) 1985-03-14
CH666356A5 (en) 1988-07-15
ATA269984A (en) 1988-11-15
NL191246C (en) 1995-04-03
IT8409485A0 (en) 1984-08-22
AT388454B (en) 1989-06-26
FR2551215A1 (en) 1985-03-01
NL8402448A (en) 1985-03-18
NL191246B (en) 1994-11-01
IT1198912B (en) 1988-12-21
DE3331203C2 (en) 1987-05-07
FR2551215B1 (en) 1988-08-19

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SECURITON A.G.

Effective date: 20010831