[go: up one dir, main page]

EP0928640A1 - Transducteur à ultrasons avec pavillon et réseau pilote en phase utilisant un tel transducteur - Google Patents

Transducteur à ultrasons avec pavillon et réseau pilote en phase utilisant un tel transducteur Download PDF

Info

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Withdrawn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
Other languages
German (de)
English (en)
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/fr
Publication of EP0928640A1 publication Critical patent/EP0928640A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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 Transducteur à ultrasons avec pavillon et réseau pilote en phase utilisant un tel transducteur Withdrawn EP0928640A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98400043A EP0928640A1 (fr) 1998-01-12 1998-01-12 Transducteur à ultrasons avec pavillon et réseau pilote en phase utilisant un tel transducteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98400043A EP0928640A1 (fr) 1998-01-12 1998-01-12 Transducteur à ultrasons avec pavillon et réseau pilote en phase utilisant un tel transducteur

Publications (1)

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

Family

ID=8235238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400043A Withdrawn EP0928640A1 (fr) 1998-01-12 1998-01-12 Transducteur à ultrasons avec pavillon et réseau pilote en phase utilisant un tel transducteur

Country Status (1)

Country Link
EP (1) EP0928640A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017103811A1 (fr) * 2015-12-16 2017-06-22 Scm Group S.P.A. Appareil d'usinage
WO2017103812A1 (fr) * 2015-12-16 2017-06-22 Scm Group S.P.A. Appareil d'usinage
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 (fr) * 2018-08-03 2021-04-21 Pepperl+Fuchs SE Unité transducteur ultrasonore 1d pour la détection de matériaux
CN114453228A (zh) * 2021-12-30 2022-05-10 广东工业大学 一种超声波传输构件
EP4481435A1 (fr) * 2023-06-22 2024-12-25 Navico, Inc. Cone pour formation de faisceau sonar

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 (fr) * 1985-09-02 1987-03-12 Medical Innovation Company A/S Procede d'examen aux ultrasons et conducteur ultrasonique permettant la mise en oeuvre du procede
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 (fr) * 1985-09-02 1987-03-12 Medical Innovation Company A/S Procede d'examen aux ultrasons et conducteur ultrasonique permettant la mise en oeuvre du procede
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 (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017103811A1 (fr) * 2015-12-16 2017-06-22 Scm Group S.P.A. Appareil d'usinage
WO2017103812A1 (fr) * 2015-12-16 2017-06-22 Scm Group S.P.A. Appareil d'usinage
EP3807632B1 (fr) * 2018-07-13 2024-01-10 Pepperl+Fuchs SE Unité à transducteurs ultrasonores 1d
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
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
EP3807018A1 (fr) * 2018-08-03 2021-04-21 Pepperl+Fuchs SE Unité transducteur ultrasonore 1d pour la détection de matériaux
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
US11808850B2 (en) 2018-08-03 2023-11-07 Pepperl + Fuchs Se 1D ultrasonic transducer unit for hazard identification for a vehicle
US11867805B2 (en) 2018-08-03 2024-01-09 Pepperl + Fuchs Se 1D ultrasonic transducer unit for area monitoring
DE102018006130B3 (de) 2018-08-03 2019-08-08 Pepperl + Fuchs Gmbh 1D-Ultraschallwandler-Einheit zur Gefahrenerkennung für ein Fahrzeug
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
CN114453228A (zh) * 2021-12-30 2022-05-10 广东工业大学 一种超声波传输构件
EP4481435A1 (fr) * 2023-06-22 2024-12-25 Navico, Inc. Cone pour formation de faisceau sonar

Similar Documents

Publication Publication Date Title
US9274223B2 (en) System for determining the distance from and the direction to an object
KR101294493B1 (ko) 수중 바닥 지형을 측량하는 방법 및 장치
US4887246A (en) Ultrasonic apparatus, system and method
US4495817A (en) Ultrasonic imaging device
GB2041525A (en) Ultrasonic imaging system utilizing dynamic and pseudo-dynamic focusing
US4870623A (en) System to recognize a geometry parameter of unknown object with continuous wave acoustic energy
US4530077A (en) Efficient low cost transducer system
US4888086A (en) Ultrasonic method
EP0928640A1 (fr) Transducteur à ultrasons avec pavillon et réseau pilote en phase utilisant un tel transducteur
US5703834A (en) Ultrasonic sensor and method of using such a sensor
CN108802739A (zh) 一种水下障碍物探测方法及探测装置
US6056694A (en) Wave receiving apparatus and ultrasonic diagnostic apparatus
US4487073A (en) Ultrasonic system
US5341346A (en) Portable narrow angle sonar range finder
EP0898175A1 (fr) Procédé de balayage par ultrasons avec des rayons multiples
EP0890849A1 (fr) Méthode de combinaison de faisceaux acoustiques pour améliorer la qualité de la carbographie
LENS Ultrasonic imaging with an acoustic lens
EP0899579A1 (fr) Procédé d'amélioration de la détection acoustique et de la détermination de la position de petites cibles
JP3202969B2 (ja) 波動受信装置
AU2021234200B2 (en) Acoustic headlight
JPH02102481A (ja) 超音波誘導装置
US5825717A (en) Method of measuring an angle in three dimensions, by scanning an ultrasound beam
Wykes et al. Ultrasound imaging in air
GB2167557A (en) Ultrasonic ranging apparatus
CN119667688A (zh) 超声波相位阵列传感器

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000117