EP0928640A1 - Ultraschallwandler mit einem Trichter und phasengesteuerter Wandleranordnung mit derartigem Ultraschallwandler - Google Patents

Ultraschallwandler mit einem Trichter und phasengesteuerter Wandleranordnung mit derartigem Ultraschallwandler Download PDF

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Publication number
EP0928640A1
EP0928640A1 EP98400043A EP98400043A EP0928640A1 EP 0928640 A1 EP0928640 A1 EP 0928640A1 EP 98400043 A EP98400043 A EP 98400043A EP 98400043 A EP98400043 A EP 98400043A EP 0928640 A1 EP0928640 A1 EP 0928640A1
Authority
EP
European Patent Office
Prior art keywords
ultrasonic transducer
ultrasonic
horn
phased array
transducers
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Withdrawn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
EP98400043A
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English (en)
French (fr)
Inventor
Pierre Bonnefoy
Franck Harroy
Philippe Loiseau
Guy Noel
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.)
IMRA Europe SAS
Original Assignee
IMRA Europe SAS
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 IMRA Europe SAS filed Critical IMRA Europe SAS
Priority to EP98400043A priority Critical patent/EP0928640A1/de
Publication of EP0928640A1 publication Critical patent/EP0928640A1/de
Withdrawn legal-status Critical Current

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    • 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
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

Definitions

  • ⁇ should be about 8 to 9 mm so as to avoid signal attenuation in air. Due to transducer/air acoustical impedance matching, the diameters of the transducers are set to a value which ensures a sufficient power level. On the other hand, the interference echoes may be lowered by decreasing the distance between the transducers (i.e. increasing the angular distances between main lobe and side lobes).
  • Such acoustical mirror may advantageously be made of a polymer or metal material, and may be parabolic or cylindrical.
  • the outside ends of the horn parts of the ultrasonic transducers may be arranged in a one-dimensional or two-dimensional array.
  • the inventive ultrasonic transducer is particularly well adapted for phased arrays to be used in robot or vehicle guidance.
  • the spacing of half a wavelength can be respected while keeping the power level of ultrasonic transducers used in previous solutions and available in the market, or by using even more powerful ultrasonic transducers, as the dimensions of the transducers become independent from the Shannon rule. Consequently, the side lobes are eliminated or at least significantly reduced or spread away from the main lobe, depending on the dimensions of the outside ends of the horn parts, i.e. the distance between the centers of two adjacent outside ends and the wavelength which is chosen.
  • the ultrasonic diaphragm and its two contacts may be directly fixed on the polymer element so as to further lower the manufacturing costs.
  • the rear part of the polymer element 16 comprising the ultrasonic transducers mounted herein is accommodated in a housing 17 having openings 18 to connect the ultrasonic transducers to the electronic control system (not shown in the figures).
  • This type of ultrasonic detection device can be used on a vehicle, the particular shape of the horns, e.g. bent conical horns, preventing the ultrasonic parts to be damaged from the outside. Further, the outside ends of the horns may advantageously be provided with protective parts as grids.
  • ultrasonic detection devices controlled by a unique electronic control system may be implemented in a vehicle for obstacle detection or a robot for guidance purposes, or in an interior space for the purpose of detecting the presence of an intruder.
  • Fig.7b shows the acoustic lobe pattern obtainable by the phased array of Fig.3a using ultrasonic transducers according to the invention.
  • This acoustic lobe pattern has to be compared with the acoustic lobe pattern of Fig.3b obtained with prior art ultrasonic transducers.
  • the side lobes 24 has been lowered and the directivity of main lobe 23 is increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
EP98400043A 1998-01-12 1998-01-12 Ultraschallwandler mit einem Trichter und phasengesteuerter Wandleranordnung mit derartigem Ultraschallwandler Withdrawn EP0928640A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98400043A EP0928640A1 (de) 1998-01-12 1998-01-12 Ultraschallwandler mit einem Trichter und phasengesteuerter Wandleranordnung mit derartigem Ultraschallwandler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98400043A EP0928640A1 (de) 1998-01-12 1998-01-12 Ultraschallwandler mit einem Trichter und phasengesteuerter Wandleranordnung mit derartigem Ultraschallwandler

Publications (1)

Publication Number Publication Date
EP0928640A1 true EP0928640A1 (de) 1999-07-14

Family

ID=8235238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400043A Withdrawn EP0928640A1 (de) 1998-01-12 1998-01-12 Ultraschallwandler mit einem Trichter und phasengesteuerter Wandleranordnung mit derartigem Ultraschallwandler

Country Status (1)

Country Link
EP (1) EP0928640A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017103811A1 (en) * 2015-12-16 2017-06-22 Scm Group S.P.A. Machining apparatus
WO2017103812A1 (en) * 2015-12-16 2017-06-22 Scm Group S.P.A. Machining apparatus
DE102018006139B3 (de) 2018-08-03 2019-06-19 Pepperl+Fuchs Gmbh 1D-Ultraschallwandler-Einheit für die Bereichsüberwachung
DE102018006130B3 (de) 2018-08-03 2019-08-08 Pepperl + Fuchs Gmbh 1D-Ultraschallwandler-Einheit zur Gefahrenerkennung für ein Fahrzeug
KR20210027398A (ko) * 2018-07-13 2021-03-10 페퍼를 운트 푹스 에스이 1d 초음파 트랜스듀서 유닛
EP3807018A1 (de) * 2018-08-03 2021-04-21 Pepperl+Fuchs SE 1d-ultraschallwandler-einheit für die materialerfassung
CN114453228A (zh) * 2021-12-30 2022-05-10 广东工业大学 一种超声波传输构件
EP4481435A1 (de) * 2023-06-22 2024-12-25 Navico, Inc. Sonarstrahlformsteuerhorn

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1010112A (en) * 1961-06-05 1965-11-17 Aeroprojects Inc Vibratory device
GB1300160A (en) * 1969-08-18 1972-12-20 Commissariat Energie Atomique Improvements in and relating to ultrasonic devices for use in measuring displacements
US3792701A (en) * 1970-11-03 1974-02-19 E Kloz Neutralising device for urinary, ureteral and kidney pelvis caluli
GB1487308A (en) * 1974-10-31 1977-09-28 Emi Ltd Sensors of ultrasonic images
JPS52153472A (en) * 1976-06-16 1977-12-20 Oki Electric Ind Co Ltd Ultrasonic transmitter and receiver
US4131505A (en) * 1977-12-12 1978-12-26 Dukane Corporation Ultra-sonic horn
FR2412842A1 (fr) * 1977-12-22 1979-07-20 Krautkraemer Gmbh Dispositif pour le controle non destructif par ultrasons de surfaces de liaison
US4392410A (en) * 1981-07-02 1983-07-12 The United States Of America As Represented By The Secretary Of The Navy Ultrasonic loading of extrudable plastic bonded explosives
WO1987001269A1 (en) * 1985-09-02 1987-03-12 Medical Innovation Company A/S Method for ultrasound examination and ultrasonic conductor for carrying out the method
US5165064A (en) * 1991-03-22 1992-11-17 Cyberotics, Inc. Mobile robot guidance and navigation system
US5371483A (en) * 1993-12-20 1994-12-06 Bhardwaj; Mahesh C. High intensity guided ultrasound source

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1010112A (en) * 1961-06-05 1965-11-17 Aeroprojects Inc Vibratory device
GB1300160A (en) * 1969-08-18 1972-12-20 Commissariat Energie Atomique Improvements in and relating to ultrasonic devices for use in measuring displacements
US3792701A (en) * 1970-11-03 1974-02-19 E Kloz Neutralising device for urinary, ureteral and kidney pelvis caluli
GB1487308A (en) * 1974-10-31 1977-09-28 Emi Ltd Sensors of ultrasonic images
JPS52153472A (en) * 1976-06-16 1977-12-20 Oki Electric Ind Co Ltd Ultrasonic transmitter and receiver
US4131505A (en) * 1977-12-12 1978-12-26 Dukane Corporation Ultra-sonic horn
FR2412842A1 (fr) * 1977-12-22 1979-07-20 Krautkraemer Gmbh Dispositif pour le controle non destructif par ultrasons de surfaces de liaison
US4392410A (en) * 1981-07-02 1983-07-12 The United States Of America As Represented By The Secretary Of The Navy Ultrasonic loading of extrudable plastic bonded explosives
WO1987001269A1 (en) * 1985-09-02 1987-03-12 Medical Innovation Company A/S Method for ultrasound examination and ultrasonic conductor for carrying out the method
US5165064A (en) * 1991-03-22 1992-11-17 Cyberotics, Inc. Mobile robot guidance and navigation system
US5371483A (en) * 1993-12-20 1994-12-06 Bhardwaj; Mahesh C. High intensity guided ultrasound source

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 002, no. 032 (E - 018) 28 February 1978 (1978-02-28) *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017103811A1 (en) * 2015-12-16 2017-06-22 Scm Group S.P.A. Machining apparatus
WO2017103812A1 (en) * 2015-12-16 2017-06-22 Scm Group S.P.A. Machining apparatus
EP3807632B1 (de) * 2018-07-13 2024-01-10 Pepperl+Fuchs SE 1d-ultraschallwandler-einheit
US11869479B2 (en) 2018-07-13 2024-01-09 Pepperl + Fuchs Se 1D ultrasonic converter unit
KR20210027398A (ko) * 2018-07-13 2021-03-10 페퍼를 운트 푹스 에스이 1d 초음파 트랜스듀서 유닛
US11808850B2 (en) 2018-08-03 2023-11-07 Pepperl + Fuchs Se 1D ultrasonic transducer unit for hazard identification for a vehicle
JP2021532692A (ja) * 2018-08-03 2021-11-25 ペッパール プルス フクス エス・エーPepperl + Fuchs SE 材料検出のための１ｄ超音波変換器ユニット
JP2021532691A (ja) * 2018-08-03 2021-11-25 ペッパール プルス フクス エス・エーPepperl + Fuchs SE 領域監視のための１ｄ超音波変換器ユニット
DE102018006130B3 (de) 2018-08-03 2019-08-08 Pepperl + Fuchs Gmbh 1D-Ultraschallwandler-Einheit zur Gefahrenerkennung für ein Fahrzeug
EP3807018A1 (de) * 2018-08-03 2021-04-21 Pepperl+Fuchs SE 1d-ultraschallwandler-einheit für die materialerfassung
US11867805B2 (en) 2018-08-03 2024-01-09 Pepperl + Fuchs Se 1D ultrasonic transducer unit for area monitoring
DE102018006139B3 (de) 2018-08-03 2019-06-19 Pepperl+Fuchs Gmbh 1D-Ultraschallwandler-Einheit für die Bereichsüberwachung
US11906293B2 (en) 2018-08-03 2024-02-20 Pepperl + Fuchs Se 1D ultrasonic transducer unit for material detection
EP3807018B1 (de) * 2018-08-03 2025-08-20 Pepperl+Fuchs SE 1d-ultraschallwandler-einheit für die materialerfassung
CN114453228A (zh) * 2021-12-30 2022-05-10 广东工业大学 一种超声波传输构件
EP4481435A1 (de) * 2023-06-22 2024-12-25 Navico, Inc. Sonarstrahlformsteuerhorn
AU2024203534B2 (en) * 2023-06-22 2025-06-26 Navico, Inc. Sonar beam shape controlling horn

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