FR2283615A1 - DIRECTIONAL ULTRASONIC TRANSDUCER WITH REDUCED SECONDARY LOBES - Google Patents

DIRECTIONAL ULTRASONIC TRANSDUCER WITH REDUCED SECONDARY LOBES

Info

Publication number
FR2283615A1
FR2283615A1 FR7525669A FR7525669A FR2283615A1 FR 2283615 A1 FR2283615 A1 FR 2283615A1 FR 7525669 A FR7525669 A FR 7525669A FR 7525669 A FR7525669 A FR 7525669A FR 2283615 A1 FR2283615 A1 FR 2283615A1
Authority
FR
France
Prior art keywords
ultrasonic transducer
secondary lobes
reduced secondary
directional ultrasonic
directional
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.)
Granted
Application number
FR7525669A
Other languages
French (fr)
Other versions
FR2283615B1 (en
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.)
Fiat SpA
Original Assignee
Fiat SpA
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 Fiat SpA filed Critical Fiat SpA
Publication of FR2283615A1 publication Critical patent/FR2283615A1/en
Application granted granted Critical
Publication of FR2283615B1 publication Critical patent/FR2283615B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • 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
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Transducers For Ultrasonic Waves (AREA)
FR7525669A 1974-08-26 1975-08-19 DIRECTIONAL ULTRASONIC TRANSDUCER WITH REDUCED SECONDARY LOBES Granted FR2283615A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US500391A US3928777A (en) 1974-08-26 1974-08-26 Directional ultrasonic transducer with reduced secondary lobes

Publications (2)

Publication Number Publication Date
FR2283615A1 true FR2283615A1 (en) 1976-03-26
FR2283615B1 FR2283615B1 (en) 1981-02-06

Family

ID=23989215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7525669A Granted FR2283615A1 (en) 1974-08-26 1975-08-19 DIRECTIONAL ULTRASONIC TRANSDUCER WITH REDUCED SECONDARY LOBES

Country Status (3)

Country Link
US (1) US3928777A (en)
FR (1) FR2283615A1 (en)
IT (1) IT1041603B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4191904A (en) * 1978-09-28 1980-03-04 Fred M. Dellorfano, Jr. Electroacoustic transducers of the flexural resonant vibratile type
JPS599000B2 (en) * 1979-02-13 1984-02-28 東レ株式会社 ultrasonic transducer
GB2079098A (en) * 1980-06-23 1982-01-13 Space Age Electronics Ltd Transducers
US4594897A (en) * 1984-01-27 1986-06-17 Bethlehem Steel Corporation Inspection of the internal portion of objects using ultrasonics
US4556814A (en) * 1984-02-21 1985-12-03 Ngk Spark Plug Co., Ltd. Piezoelectric ultrasonic transducer with porous plastic housing
US4713799A (en) * 1984-10-15 1987-12-15 Deere & Company Ultrasonic horn with sidelobe suppressing centerpiece
JPH0453586Y2 (en) * 1986-02-21 1992-12-16
US4976150A (en) * 1986-12-30 1990-12-11 Bethlehem Steel Corporation Ultrasonic transducers
DE58906785D1 (en) * 1989-10-30 1994-03-03 Siemens Ag Ultrasound layer transducer with astigmatic sound lobe.
DE59100463D1 (en) * 1991-02-07 1993-11-11 Siemens Ag Method of manufacturing ultrasonic transducers.
GB9126082D0 (en) * 1991-12-06 1992-02-05 Nat Res Dev Acoustic non-destructive testing
DE19527018C1 (en) * 1995-07-24 1997-02-20 Siemens Ag Ultrasonic transducer
US5834877A (en) * 1995-08-28 1998-11-10 Accuweb, Inc. Ultrasonic transducer units for web detection and the like
US6268683B1 (en) 1999-02-26 2001-07-31 M&Fc Holding Company Transducer configurations and related method
DE202004002107U1 (en) * 2004-02-11 2005-03-31 Siemens Ag Ultrasonic transducer with a piezoelectric ceramic transducer element and a matching (sic) layer in thermoplastic elastomer simple and cost effective to produce useful in the transmission of ultrasonic sound waves
US7415881B2 (en) * 2004-08-19 2008-08-26 Fife Corporation Ultrasonic sensor system for web-guiding apparatus
US8320218B2 (en) * 2008-07-24 2012-11-27 Massa Products Corporation Hidden ultrasonic transducer with beam angle control for non-contact target detection systems
US8085621B2 (en) * 2008-07-24 2011-12-27 Massa Products Corporation Ultrasonic transducer with improved method of beam angle control
DE202008012795U1 (en) 2008-09-25 2009-11-19 Siemens Aktiengesellschaft Ultrasonic transducer with elastomer matching layer
WO2011090484A1 (en) * 2010-01-22 2011-07-28 Massa Products Corporation Hidden ultrasonic transducer
US9415963B2 (en) 2013-01-30 2016-08-16 Fife Corporation Sensor controller for interpreting natural interaction sensor for web handling
US11575987B2 (en) * 2017-05-30 2023-02-07 Northeastern University Underwater ultrasonic communication system and method
CN110907010B (en) * 2019-12-16 2020-12-08 中国人民解放军国防科技大学 Flow-induced resonance-based propellant residual quantity measuring device and measuring method in storage tank

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427348A (en) * 1941-08-19 1947-09-16 Bell Telephone Labor Inc Piezoelectric vibrator
US2430013A (en) * 1942-06-10 1947-11-04 Rca Corp Impedance matching means for mechanical waves
US3513439A (en) * 1968-12-23 1970-05-19 Parke Davis & Co Ultrasonic beam transducer
US3710151A (en) * 1971-03-29 1973-01-09 Dynamics Corp Massa Div Electroacoustic transducer for use at high temperatures and pressures

Also Published As

Publication number Publication date
FR2283615B1 (en) 1981-02-06
IT1041603B (en) 1980-01-10
US3928777A (en) 1975-12-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse