BE901343A - Un circuit moniteur d'impulsions servant de moniteur de regime de ventilateur. - Google Patents

Un circuit moniteur d'impulsions servant de moniteur de regime de ventilateur.

Info

Publication number
BE901343A
BE901343A BE2/60573A BE2060573A BE901343A BE 901343 A BE901343 A BE 901343A BE 2/60573 A BE2/60573 A BE 2/60573A BE 2060573 A BE2060573 A BE 2060573A BE 901343 A BE901343 A BE 901343A
Authority
BE
Belgium
Prior art keywords
fan
monitor
fan speed
circuit serving
pulse
Prior art date
Application number
BE2/60573A
Other languages
English (en)
Inventor
D P Giammarrusco
Original Assignee
Gte Comm Systems Corp
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 Gte Comm Systems Corp filed Critical Gte Comm Systems Corp
Publication of BE901343A publication Critical patent/BE901343A/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
    • G01P13/004—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using the rotation of vanes
    • G01P13/0046—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using the rotation of vanes with electrical coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
    • G01P13/006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using thermal variables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

Un circuit controlant le débit d'air par comparaison du régime de rotation d'un ventilateur à une fréquence prédéterminée. Un dispositif à effet Hall détecte les impulsions magnétiques représentatives du régime de rotation d'un ventilateur et engendre un signal électrique correspondant. Ce signal est comparé à une fréquence seuil prédéterminée par un multivibrateur monostable redéclenchable. Un circuit de temporisation digital isole les conditions de vitesse et un circuit relais fournit une indication sur l'état de régime du ventilateur.
BE2/60573A 1983-12-22 1984-12-21 Un circuit moniteur d'impulsions servant de moniteur de regime de ventilateur. BE901343A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/564,260 US4513233A (en) 1983-12-22 1983-12-22 Pulse monitor circuit for use as a fan speed monitor

Publications (1)

Publication Number Publication Date
BE901343A true BE901343A (fr) 1985-04-16

Family

ID=24253767

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60573A BE901343A (fr) 1983-12-22 1984-12-21 Un circuit moniteur d'impulsions servant de moniteur de regime de ventilateur.

Country Status (3)

Country Link
US (1) US4513233A (fr)
BE (1) BE901343A (fr)
IT (1) IT1177397B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL194355C (nl) * 1988-05-06 2002-01-04 Indolec B V Ventilator.
ATE112112T1 (de) * 1988-07-28 1994-10-15 Siemens Ag Überwachungseinrichtung für einen lüfter.
DE3991623D2 (en) * 1989-03-20 1992-03-12 Papst Motoren Gmbh & Co Kg Frequenzueberwachungsanordnung
JP2885940B2 (ja) * 1994-09-20 1999-04-26 シーメンス ニクスドルフ インフオルマチオーンスジステーメ アクチエンゲゼルシヤフト ファンの制御方法及び回路装置
US5889469A (en) * 1997-08-14 1999-03-30 Jmr Electronics, Inc. Fan pulse alarm using two stage comparator for speed detection
US6054823A (en) * 1998-05-19 2000-04-25 Telcom Semiconductor, Inc. Verification of fan operation
DE19837014C1 (de) * 1998-08-14 1999-11-04 Siemens Nixdorf Inf Syst Schaltungsanordnung zum Regeln der Drehzahl eines Lüfters
US6163266A (en) * 1998-12-08 2000-12-19 Lucent Technologies Inc. Fan operation detection circuit for a DC fan and method of operation thereof
US6135718A (en) * 1999-03-25 2000-10-24 System General Corporation Interface apparatus for fan monitoring and control
EP1197244A3 (fr) * 2000-10-11 2002-10-23 Micronel AG Appareil de protection respiratoire pour dispositif de sécurité comme masque, cagoule ou vêtement de protection
CN100362448C (zh) * 2003-02-26 2008-01-16 华为技术有限公司 一种监控风扇运行的方法
US6772752B1 (en) 2003-04-10 2004-08-10 Maytag Corporation Cooling system airflow sensor for a cooking appliance
DE102004013453B4 (de) * 2004-03-11 2006-07-27 Msa Auer Gmbh Gebläsefiltergerät für Atemschutzhauben und -masken
CN100513799C (zh) * 2006-01-17 2009-07-15 台达电子工业股份有限公司 风扇系统及其低转速检知装置
CN101504422B (zh) * 2009-03-20 2011-02-16 南京特能电子有限公司 风扇转速测量方法
US20110214660A1 (en) * 2010-03-08 2011-09-08 Gillespie Timothy Andrew System for monitoring a cooling fan of an appliance
US9447977B2 (en) * 2014-05-06 2016-09-20 Haier Us Appliance Solutions, Inc. Appliance and a method for operating an appliance

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143192C (fr) *
FR2172993B1 (fr) * 1972-02-25 1979-08-03 Wilke Richard
JPS5625869B2 (fr) * 1973-05-09 1981-06-15
US4079432A (en) * 1976-04-29 1978-03-14 Mobil Oil Corporation Motor restart limiter
JPS6013146B2 (ja) * 1977-03-09 1985-04-05 ソニー株式会社 回転方向検出装置
JPS54162148A (en) * 1978-06-14 1979-12-22 Hitachi Ltd Monitor for operational condition
JPS5576927A (en) * 1978-12-06 1980-06-10 Toshiba Corp Abnormal rotation detector for rotary machine
GB2042191A (en) * 1979-01-18 1980-09-17 United Gas Industries Ltd Air or gas-flow detecting device
US4346371A (en) * 1980-09-22 1982-08-24 E. I. Du Pont De Nemours And Company Alarm circuit

Also Published As

Publication number Publication date
US4513233A (en) 1985-04-23
IT1177397B (it) 1987-08-26
IT8424018A1 (it) 1986-06-12
IT8424018A0 (it) 1984-12-12

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GTE COMMUNICATION SYSTEMS CORP.

Effective date: 19891231