EP0043747B1 - Dispositif de contrôle acoustique à distance testable par variation de la tension d'alimentation - Google Patents

Dispositif de contrôle acoustique à distance testable par variation de la tension d'alimentation Download PDF

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Publication number
EP0043747B1
EP0043747B1 EP81400920A EP81400920A EP0043747B1 EP 0043747 B1 EP0043747 B1 EP 0043747B1 EP 81400920 A EP81400920 A EP 81400920A EP 81400920 A EP81400920 A EP 81400920A EP 0043747 B1 EP0043747 B1 EP 0043747B1
Authority
EP
European Patent Office
Prior art keywords
switch
preamplifier
voltage
supply voltage
test
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.)
Expired
Application number
EP81400920A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0043747A1 (fr
Inventor
Bernard Audenard
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.)
HBS
Original Assignee
Hotchkiss Brandt Sogeme HBS SA
HBS
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 Hotchkiss Brandt Sogeme HBS SA, HBS filed Critical Hotchkiss Brandt Sogeme HBS SA
Publication of EP0043747A1 publication Critical patent/EP0043747A1/fr
Application granted granted Critical
Publication of EP0043747B1 publication Critical patent/EP0043747B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/123—Checking intermittently signalling or alarm systems of line circuits

Definitions

  • the eight-terminal switch 22 a, a, b, c, d, e, f, f includes a sliding contact with two polarities which simultaneously makes the connections a-b and f-d or a-c and f-e.
  • the sensor 2 is connected to the two terminals denoted a connected to each other and the signal wire 6 to the two terminals denoted f.
  • a connection wire connects the two terminals marked b and d.
  • Terminal c is connected to the input of the preamplifier 3 and terminal e to its output.
  • the switch 22 includes a control member 23 for its sliding contact.
  • This control member 23 can be composed for example of a two-position relay. The first is obtained by continuous supply of the relay. The second can be obtained by breaking the power supply, a spring not shown in Figure 4 recalling the sliding contact in a second position.
  • test part of sensor 2 is ensured in particular when several measurement lines are provided with remote test devices according to the invention, independent of each other. Indeed, each of their sensors like sensor 2 emits acoustic waves, part of which is received by sensor 2 which transforms them into electrical pulses also making up the second train of so-called indirect pulses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
EP81400920A 1980-07-08 1981-06-10 Dispositif de contrôle acoustique à distance testable par variation de la tension d'alimentation Expired EP0043747B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8015158 1980-07-08
FR8015158A FR2486674A1 (fr) 1980-07-08 1980-07-08 Dispositif de controle acoustique a distance testable par variation de la tension d'alimentation

Publications (2)

Publication Number Publication Date
EP0043747A1 EP0043747A1 (fr) 1982-01-13
EP0043747B1 true EP0043747B1 (fr) 1985-01-16

Family

ID=9243975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400920A Expired EP0043747B1 (fr) 1980-07-08 1981-06-10 Dispositif de contrôle acoustique à distance testable par variation de la tension d'alimentation

Country Status (6)

Country Link
US (1) US4445206A (enrdf_load_html_response)
EP (1) EP0043747B1 (enrdf_load_html_response)
JP (1) JPS5749820A (enrdf_load_html_response)
CA (1) CA1189610A (enrdf_load_html_response)
DE (1) DE3168287D1 (enrdf_load_html_response)
FR (1) FR2486674A1 (enrdf_load_html_response)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60138483A (ja) * 1983-12-27 1985-07-23 Yokogawa Medical Syst Ltd 超音波診断装置
JPH0638280Y2 (ja) * 1987-02-09 1994-10-05 株式会社ゼクセル 加温装置
IT1226633B (it) * 1988-07-15 1991-01-28 Enea Strumento di misura dell'intensita' di cavitazione o ebollizione in un liquido
US5477504A (en) * 1994-10-07 1995-12-19 The United States Of America As Represented By The Secretary Of The Navy Balanced, double-sided calibration circuit for sensor element and differential preamplifier
CA2388451A1 (en) * 2002-05-31 2003-11-30 Siemens Milltronics Process Instruments Inc. Method and apparatus for on-board calibration in pulse-echo acoustic ranging system
US7505363B2 (en) 2006-04-10 2009-03-17 Airmar Technology Corporation Automatic switch for marine sounders
US9775336B2 (en) * 2013-12-06 2017-10-03 Airmar Technology Corporation Acoustic projector with source level monitoring and control

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009137A (en) * 1958-04-10 1961-11-14 Reeve Electrical Co Inc Vault protection
DE1566814C3 (de) * 1967-03-08 1980-07-24 Neumann Elektronik Gmbh, 4330 Muelheim Verfahren und Anordnung zur Prüfung oder Fernüberwachung von Fernmeldeanlagen mit Übertragern und elektroakustischen Wandlern
SU628962A1 (ru) * 1974-02-22 1978-10-25 Львовский Филиал Всесоюзного Научно-Исследовательского Института Физико-Технических И Радиотехнических Измерений Гидроакустический измерительный преобразователь
US4043175A (en) * 1975-10-01 1977-08-23 Chevron Research Company Automatic method and apparatus for digitally indicating response characteristics of geophones of a geophysical data acquisition system
FR2367325A1 (fr) * 1976-10-06 1978-05-05 Courtois Michel Dispositif d'autocontrole positif de tous ensembles de surveillance acoustique
GB1569565A (en) * 1976-11-18 1980-06-18 Elliott D Method of and apparatus for testing an electrical network
US4296483A (en) * 1980-06-30 1981-10-20 Litton Resources Systems, Inc. Method and means for measuring geophone parameters

Also Published As

Publication number Publication date
FR2486674A1 (fr) 1982-01-15
EP0043747A1 (fr) 1982-01-13
JPS5749820A (en) 1982-03-24
FR2486674B1 (enrdf_load_html_response) 1982-10-01
CA1189610A (en) 1985-06-25
DE3168287D1 (en) 1985-02-28
US4445206A (en) 1984-04-24

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