FR2428880A1 - Dispositif de commande a ultra-sons - Google Patents

Dispositif de commande a ultra-sons

Info

Publication number
FR2428880A1
FR2428880A1 FR7914989A FR7914989A FR2428880A1 FR 2428880 A1 FR2428880 A1 FR 2428880A1 FR 7914989 A FR7914989 A FR 7914989A FR 7914989 A FR7914989 A FR 7914989A FR 2428880 A1 FR2428880 A1 FR 2428880A1
Authority
FR
France
Prior art keywords
control device
ultrasonic
ultra
sound control
housing
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Withdrawn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
FR7914989A
Other languages
English (en)
Inventor
Robert Joseph Salem
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2428880A1 publication Critical patent/FR2428880A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Selective Calling Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

L'invention concerne les dispositifs de commande. Un dispositif de commande à ultra-sons comprend notamment un boîtier 11 muni d'un canal de propagation d'ondes ultra-sonores, et un couvercle 13 fixé au boîtier. Des éléments de réflecteur 21, 22, 23 peuvent être positionnés sélectivement à l'intérieur du canal et ne réfléchissent vers le transducteur ultra-sonore d'émission/réception 17 qu'une partie des impulsions ultra-sonores qui se propagent. Les retards des différentes impulsions réfléchies permettent de détenniner simultanément la position de tous les reflecteurs. Application au matériel électroménager.
FR7914989A 1978-06-12 1979-06-12 Dispositif de commande a ultra-sons Withdrawn FR2428880A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/914,527 US4196406A (en) 1978-06-12 1978-06-12 Ultrasonic control device

Publications (1)

Publication Number Publication Date
FR2428880A1 true FR2428880A1 (fr) 1980-01-11

Family

ID=25434478

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914989A Withdrawn FR2428880A1 (fr) 1978-06-12 1979-06-12 Dispositif de commande a ultra-sons

Country Status (7)

Country Link
US (1) US4196406A (fr)
JP (1) JPS5513599A (fr)
AU (1) AU4771879A (fr)
DE (1) DE2923653A1 (fr)
FR (1) FR2428880A1 (fr)
GB (1) GB2022887A (fr)
NL (1) NL7904446A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626892U (fr) * 1985-06-28 1987-01-16
ES2004536A6 (es) * 1987-03-03 1989-01-16 Azkoyen Ind Sa Mecanismo para la recepcion y cobro de monedas en maquinas accionables por monedas
US5084845A (en) * 1990-12-12 1992-01-28 Coin Acceptors, Inc. Selection control and indication means
JP3648304B2 (ja) * 1995-11-17 2005-05-18 株式会社東芝 不揮発性半導体記憶装置
JP3981841B2 (ja) * 2003-12-12 2007-09-26 宇部興産株式会社 ビニル・シス−ポリブタジエンゴム及びそれを用いたブタジエンゴム組成物
TWI386419B (zh) * 2004-12-20 2013-02-21 Ube Industries 聚丁二烯橡膠之製造方法及橡膠組合物
BRPI0519513A2 (pt) * 2004-12-21 2009-02-25 Ube Industries composiÇço de borracha
US20070249938A1 (en) * 2006-04-20 2007-10-25 Donald J. Shields Systems, devices, and methods employing therapeutic ultrasound of living tissues
USD950693S1 (en) * 2020-12-08 2022-05-03 Classic Auto Air Manufacturing LP Controller for a vehicle heating and air conditioning system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2407294A (en) * 1946-09-10 dcgros ccnt
NL74171C (fr) * 1946-03-09
US2826745A (en) * 1956-08-05 1958-03-11 Irving H Page Grid-type liquid delay line
US2979022A (en) * 1957-12-16 1961-04-11 Admiral Corp Sonic sender
US3145355A (en) * 1961-09-20 1964-08-18 Lab For Electronics Inc Variable ultrasonic delay line
GB1411223A (en) * 1971-11-05 1975-10-22 Wilson Walton Int Ltd Apparatus and method for measuring the level of the contents of a container
CA1026237A (fr) * 1973-09-17 1978-02-14 Kureha Kagaku Kogyo Kabushiki Kaisha Commutateur de clavier
JPS5410214B2 (fr) * 1973-10-15 1979-05-02

Also Published As

Publication number Publication date
GB2022887A (en) 1979-12-19
AU4771879A (en) 1979-12-20
JPS5513599A (en) 1980-01-30
DE2923653A1 (de) 1979-12-20
US4196406A (en) 1980-04-01
NL7904446A (nl) 1979-12-14

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Legal Events

Date Code Title Description
ST Notification of lapse