ATE106782T1 - Gerät zum feststellen und signalisieren von ins wasser fallenden körpern. - Google Patents

Gerät zum feststellen und signalisieren von ins wasser fallenden körpern.

Info

Publication number
ATE106782T1
ATE106782T1 AT90400314T AT90400314T ATE106782T1 AT E106782 T1 ATE106782 T1 AT E106782T1 AT 90400314 T AT90400314 T AT 90400314T AT 90400314 T AT90400314 T AT 90400314T AT E106782 T1 ATE106782 T1 AT E106782T1
Authority
AT
Austria
Prior art keywords
diaphragm
water
box
frequencies
plate
Prior art date
Application number
AT90400314T
Other languages
English (en)
Inventor
Eric Mourgues
Original Assignee
Syclope Elect Sarl
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 Syclope Elect Sarl filed Critical Syclope Elect Sarl
Application granted granted Critical
Publication of ATE106782T1 publication Critical patent/ATE106782T1/de

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
    • B06B1/0681—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 damping structure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency
    • G01H3/06—Frequency by electric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/001—Acoustic presence detection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Examining Or Testing Airtightness (AREA)
AT90400314T 1989-02-14 1990-02-05 Gerät zum feststellen und signalisieren von ins wasser fallenden körpern. ATE106782T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8901859A FR2643154B1 (fr) 1989-02-14 1989-02-14 Appareil de detection et de signalisation des chutes des corps dans l'eau

Publications (1)

Publication Number Publication Date
ATE106782T1 true ATE106782T1 (de) 1994-06-15

Family

ID=9378738

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90400314T ATE106782T1 (de) 1989-02-14 1990-02-05 Gerät zum feststellen und signalisieren von ins wasser fallenden körpern.

Country Status (5)

Country Link
US (1) US5041752A (de)
EP (1) EP0383649B1 (de)
AT (1) ATE106782T1 (de)
DE (1) DE69009517D1 (de)
FR (1) FR2643154B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2948190A1 (fr) * 2009-07-20 2011-01-21 Noxhom Procede et dispositif de detection d'une chute d'un corps dans l'eau.
CN102319664B (zh) * 2011-05-04 2013-04-10 浙江大学 具有可调电粘弹性支撑装置的电磁式振动台系统
CN110703353B (zh) * 2019-10-08 2021-01-22 珠海格力电器股份有限公司 一种水浸传感器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430013A (en) * 1942-06-10 1947-11-04 Rca Corp Impedance matching means for mechanical waves
US2942247A (en) * 1956-11-06 1960-06-21 Carl C Lienau Alarm warning system for swimming pools
GB1524833A (en) * 1974-08-19 1978-09-13 Matsushita Electric Industrial Co Ltd Vibration detecting device and a method for adapting the same
US4054808A (en) * 1974-08-19 1977-10-18 Matsushita Electric Industrial Co., Ltd. Vibration detecting device having a piezoelectric ceramic plate and a method for adapting the same for use in musical instruments
DE2802694A1 (de) * 1978-01-21 1979-07-26 Quarz Zeit Ag Elektrische weckeruhr
US4374377A (en) * 1979-12-12 1983-02-15 Sumitomo Electric Industries, Ltd. Piezoelectric audio transducer
DE3006654A1 (de) * 1980-02-22 1981-09-03 Robert Bosch Gmbh, 7000 Stuttgart Sensor
US4533907A (en) * 1983-05-09 1985-08-06 Thatcher John B Swimming pool alarm
JPS61134631A (ja) * 1984-12-05 1986-06-21 Ngk Spark Plug Co Ltd 共振型ノツクセンサ−

Also Published As

Publication number Publication date
FR2643154A1 (fr) 1990-08-17
US5041752A (en) 1991-08-20
FR2643154B1 (fr) 1991-05-31
EP0383649B1 (de) 1994-06-08
EP0383649A1 (de) 1990-08-22
DE69009517D1 (de) 1994-07-14

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