NL7200679A - - Google Patents

Info

Publication number
NL7200679A
NL7200679A NL7200679A NL7200679A NL7200679A NL 7200679 A NL7200679 A NL 7200679A NL 7200679 A NL7200679 A NL 7200679A NL 7200679 A NL7200679 A NL 7200679A NL 7200679 A NL7200679 A NL 7200679A
Authority
NL
Netherlands
Application number
NL7200679A
Other versions
NL176604C (nl
NL176604B (nl
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 filed Critical
Publication of NL7200679A publication Critical patent/NL7200679A/xx
Publication of NL176604B publication Critical patent/NL176604B/nl
Application granted granted Critical
Publication of NL176604C publication Critical patent/NL176604C/nl

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
    • B06B1/0677—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface and a high impedance backing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/08—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices, i.e. electric circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
NLAANVRAGE7200679,A 1971-01-19 1972-01-18 Drukomzetter. NL176604C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7101718A FR2122675A5 (nl) 1971-01-19 1971-01-19

Publications (3)

Publication Number Publication Date
NL7200679A true NL7200679A (nl) 1972-07-21
NL176604B NL176604B (nl) 1984-12-03
NL176604C NL176604C (nl) 1985-05-01

Family

ID=9070528

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7200679,A NL176604C (nl) 1971-01-19 1972-01-18 Drukomzetter.

Country Status (8)

Country Link
US (1) US3763464A (nl)
CA (1) CA951537A (nl)
DE (1) DE2202290C2 (nl)
ES (1) ES398977A1 (nl)
FR (1) FR2122675A5 (nl)
GB (1) GB1334211A (nl)
IT (1) IT946657B (nl)
NL (1) NL176604C (nl)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2223926B1 (nl) * 1973-03-27 1978-12-01 Inst Francais Du Petrole
FR2263656B1 (nl) * 1974-03-05 1978-01-06 France Etat
US3970878A (en) * 1975-03-31 1976-07-20 Teledyne Exploration Company Piezoelectric transducer unit and hydrophone assembly
FR2307276A1 (fr) * 1975-04-11 1976-11-05 France Etat Hydrophone avec reflecteur acoustique
FR2320536A1 (fr) * 1975-08-08 1977-03-04 Sv Sarl Metro Mesures Piezographe et procede de mise en oeuvre pour l'analyse du fonctionnement d'un moteur diesel
US4184093A (en) * 1978-07-07 1980-01-15 The United States Of America As Represented By The Secretary Of The Navy Piezoelectric polymer rectangular flexural plate hydrophone
US4186325A (en) * 1978-08-18 1980-01-29 Teledyne Industries, Inc. Cable supported piezoelectric bender intrusion detector array
US4618797A (en) * 1984-12-24 1986-10-21 Cline David J Environmentally sealed piezoelectric sensing assembly for electrical switch
FR2617659B1 (fr) * 1987-06-30 1990-09-14 Inst Francais Du Petrole Transducteur piezo-electrique comportant plusieurs elements sensibles coaxiaux
FR2664119B1 (fr) * 1990-06-29 1993-06-11 Inst Francais Du Petrole Systeme integre de reception d'ondes acoustiques de grande longueur.
DE4226485C1 (de) * 1992-08-11 1993-12-23 Prakla Seismos Gmbh Hydrophon, Verfahren zu seiner Herstellung und Verwendung
US5332944A (en) * 1993-10-06 1994-07-26 Cline David J Environmentally sealed piezoelectric switch assembly
FR2733831B1 (fr) * 1995-05-04 1997-06-20 Inst Francais Du Petrole Capteur de vibrations
FR2748183B1 (fr) * 1996-04-29 1998-05-22 Inst Francais Du Petrole Hydrophone et procede pour sa fabrication
US5883459A (en) * 1997-07-21 1999-03-16 Balboa Instruments Inc. Electrical switch assembly encapsulated against moisture intrusion
US6016020A (en) * 1997-09-03 2000-01-18 Balboa Instruments, Inc. Method and apparatus using low voltage level actuator to control operation of electrical appliance
FR2832018B1 (fr) * 2001-11-02 2004-02-13 Inst Francais Du Petrole Hydrophone a inhibition automatique en cas de depassement d'un seuil d'immersion ajustable
FR2832019B1 (fr) 2001-11-02 2004-01-02 Inst Francais Du Petrole Hydrophone a inhibition automatique en cas de depassement d'un seuil d'immersion ajustable

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA744075A (en) * 1966-10-04 W. Elston Alvin Transducer
DE701878C (de) * 1938-10-19 1941-01-25 Mix & Genest Akt Ges Metallmembran mit Verstaerkungsring
US2436377A (en) * 1943-12-27 1948-02-24 Bell Telephone Labor Inc Ultrasonic compressional wave transmission
FR1071843A (fr) * 1952-11-08 1954-09-06 Onera (Off Nat Aerospatiale) Perfectionnements apportés aux appareils manométriques à membranes, notamment à ceux pour aérodynes
FR1084745A (fr) * 1953-06-13 1955-01-24 Dispositif manométrique
US3166730A (en) * 1959-09-29 1965-01-19 Jr James R Brown Annular electrostrictive transducer
US3249912A (en) * 1962-08-08 1966-05-03 Gen Dynamics Corp Electromechanical transducer
GB1138613A (en) * 1965-03-11 1969-01-01 Derek Joseph Harry Goddin Improvements in or relating to pressure measuring devices
US3341794A (en) * 1965-07-26 1967-09-12 Statham Instrument Inc Transducers with substantially linear response characteristics
US3417361A (en) * 1966-03-07 1968-12-17 Conrac Corp Semiconductive pressure transducer
US3405559A (en) * 1966-11-07 1968-10-15 United Aircraft Corp Pressure transducer
US3368193A (en) * 1966-12-05 1968-02-06 Navy Usa Deep submergence hydrophone
US3418624A (en) * 1967-03-27 1968-12-24 Dynamics Corp Massa Div Coaxially mounted line hydrophone

Also Published As

Publication number Publication date
ES398977A1 (es) 1975-06-01
GB1334211A (en) 1973-10-17
CA951537A (en) 1974-07-23
DE2202290A1 (de) 1972-07-27
IT946657B (it) 1973-05-21
NL176604C (nl) 1985-05-01
FR2122675A5 (nl) 1972-09-01
DE2202290C2 (de) 1985-01-10
US3763464A (en) 1973-10-02
NL176604B (nl) 1984-12-03

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed
A85 Still pending on 85-01-01
V4 Discontinued because of reaching the maximum lifetime of a patent