DE69525141D1 - Anordnung und Verfahren, um Schwingungen in Bauelementen und akustische Schwingungen zu erzeugen - Google Patents

Anordnung und Verfahren, um Schwingungen in Bauelementen und akustische Schwingungen zu erzeugen

Info

Publication number
DE69525141D1
DE69525141D1 DE69525141T DE69525141T DE69525141D1 DE 69525141 D1 DE69525141 D1 DE 69525141D1 DE 69525141 T DE69525141 T DE 69525141T DE 69525141 T DE69525141 T DE 69525141T DE 69525141 D1 DE69525141 D1 DE 69525141D1
Authority
DE
Germany
Prior art keywords
vibrations
arrangement
components
generating
acoustic
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.)
Expired - Fee Related
Application number
DE69525141T
Other languages
English (en)
Inventor
Allen J Bronowicki
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.)
Northrop Grumman Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Application granted granted Critical
Publication of DE69525141D1 publication Critical patent/DE69525141D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • 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
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
    • B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
    • B06B1/0261—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken from a transducer or electrode connected to the driving transducer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/04—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by acoustic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/0078—Shock-testing of vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/40—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups with testing, calibrating, safety devices, built-in protection, construction details
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/70—Specific application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/268—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous release of stored pressurised gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02872—Pressure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
DE69525141T 1995-01-26 1995-11-29 Anordnung und Verfahren, um Schwingungen in Bauelementen und akustische Schwingungen zu erzeugen Expired - Fee Related DE69525141D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/378,437 US5656779A (en) 1992-12-04 1995-01-26 Apparatus and method for producing structural and acoustic vibrations

Publications (1)

Publication Number Publication Date
DE69525141D1 true DE69525141D1 (de) 2002-03-14

Family

ID=23493136

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69525141T Expired - Fee Related DE69525141D1 (de) 1995-01-26 1995-11-29 Anordnung und Verfahren, um Schwingungen in Bauelementen und akustische Schwingungen zu erzeugen

Country Status (5)

Country Link
US (1) US5656779A (de)
EP (1) EP0724243B1 (de)
JP (1) JP3580931B2 (de)
KR (1) KR100220305B1 (de)
DE (1) DE69525141D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112504616A (zh) * 2020-11-18 2021-03-16 中国空气动力研究与发展中心 一种天平动态力谐波抑制方法及装置

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6259935B1 (en) 1997-06-24 2001-07-10 Matsushita Electrical Industrial Co., Ltd. Electro-mechanical-acoustic transducing device
US6002927A (en) * 1997-10-29 1999-12-14 Ericsson Inc. Method and apparatus for cooling an electronic device and generating a vibrational signal
US6198206B1 (en) 1998-03-20 2001-03-06 Active Control Experts, Inc. Inertial/audio unit and construction
US6301973B1 (en) 1999-04-30 2001-10-16 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Non-intrusive pressure/multipurpose sensor and method
AU5868000A (en) * 1999-06-01 2000-12-18 Continuum Control Corporation Electrical power extraction from mechanical disturbances
AU1131201A (en) * 1999-11-03 2001-05-14 Palle Andersen Method for vibration analysis
KR100407891B1 (ko) * 2001-07-04 2003-12-03 한국과학기술원 구조물의 진동 억제를 위한 적응 션트회로 및 그 동작방법
US6606573B2 (en) * 2001-08-29 2003-08-12 Micro Motion, Inc. Sensor apparatus, methods and computer program products employing vibrational shape control
US7117754B2 (en) * 2002-10-28 2006-10-10 The Curators Of The University Of Missouri Torque ripple sensor and mitigation mechanism
DE10333410B4 (de) * 2003-07-15 2017-03-23 Minebea Co., Ltd. Verfahren und Vorrichtung zur Bestimmung der Eigenfrequenzen eines Lagersystems mit einer gelagerten Welle
CN100511069C (zh) * 2004-05-21 2009-07-08 西安光麒科技有限公司 全自动机械振动台控制系统
DE102005015554A1 (de) * 2005-04-04 2006-10-05 Werma Signaltechnik Gmbh + Co. Kg Signalvorrichtung mit einem akustischen Signalgeber
JP2007137333A (ja) * 2005-11-21 2007-06-07 Denso Corp 車両用乗員保護装置
JP4513833B2 (ja) * 2007-07-17 2010-07-28 株式会社デンソー 車両用衝突検知装置
KR100979295B1 (ko) 2008-04-28 2010-08-31 엘아이지넥스원 주식회사 음향센서 및 이를 이용한 위상 제어 방법
GB2462078B (en) * 2008-07-21 2011-05-25 Schlumberger Holdings Monitoring of the structural condition of pipes
US9225517B2 (en) * 2008-09-30 2015-12-29 Intel Corporation Secure device association
JP5761818B2 (ja) * 2009-06-22 2015-08-12 ボルボ テクノロジー コーポレイション 電気機械システムにおける電気機械振動を減衰させる方法およびそのような方法を使用する振動減衰システム
US20110303011A1 (en) * 2010-06-15 2011-12-15 Kai-Mei Camilla Fu Sensor apparatus, system and method providing coupling characterization
US10001391B1 (en) * 2014-08-14 2018-06-19 Vesper Technologies Inc. Adjusting resonant frequencies based on feedback networks
US10281311B2 (en) * 2014-09-11 2019-05-07 Dresser, Llc Method of operating a liquid-level transmitter device and implementation thereof
CN105605142B (zh) * 2015-08-25 2017-08-29 中国人民解放军海军工程大学 一种主被动混合隔振系统中磁悬浮作动器位移自感知方法
CN106596130B (zh) * 2016-12-20 2018-09-11 江苏金坛大迈汽车工程研究院有限公司 一种整车噪声振动源检测装置及应用其检测振动源的方法
CN106679917B (zh) * 2016-12-30 2019-01-11 脉创测控装备科技（苏州）有限公司 一种集成式振动试验系统及其能耗管理方法

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027747A (en) * 1956-01-23 1962-04-03 David S York Simulation table
US3290922A (en) * 1964-01-22 1966-12-13 Techrand Corp Of America Pressure and vacuum determinator
US3438493A (en) * 1966-03-01 1969-04-15 Imco Container Co Inspection apparatus and method
US3435664A (en) * 1967-01-18 1969-04-01 Branson Instr Method and apparatus for evaluating the property of a liquid by acoustic means
US3608715A (en) * 1970-02-06 1971-09-28 Brockway Glass Co Inc Method and apparatus for inspecting liquids
JPS514282B1 (de) * 1970-12-22 1976-02-10
DE2114535C3 (de) * 1971-03-25 1980-06-12 Daimler-Benz Ag, 7000 Stuttgart Aufprall-Schutzvorrichtung für die Insassen von Fahrzeugen, insbesondere von Kraftfahrzeugen
US3691521A (en) * 1971-05-03 1972-09-12 Allied Chem Low pressure indicator for air bag safety system
US3745384A (en) * 1972-01-07 1973-07-10 Bendix Corp Resonant pressure sensor
US3802252A (en) * 1972-06-09 1974-04-09 Benthos Inc Pressure and vacuum monitoring apparatus
US3771121A (en) * 1972-08-07 1973-11-06 Allied Chem Pressure sensing apparatus
US3810655A (en) * 1972-08-21 1974-05-14 Gen Motors Corp Gas generator with liquid phase cooling
US3942381A (en) * 1974-01-29 1976-03-09 Brown William G Ultrasonic pressure test method and apparatus
US4049935A (en) * 1974-06-11 1977-09-20 Allied Chemical Corporation Pressure switch with diaphragm
US4062227A (en) * 1976-12-23 1977-12-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration CW ultrasonic bolt tensioning monitor
GB1594052A (en) * 1977-03-26 1981-07-30 Toyo Seikan Kaisha Ltd Method and apparatus for monitoring the internal pressure of an hermetically sealed container
US4197564A (en) * 1978-03-23 1980-04-08 Ampex Corporation Automatically calibrated RF envelope detector circuit
US4212205A (en) * 1979-02-12 1980-07-15 Reticon Corporation Container defect detection apparatus
US4277758A (en) * 1979-08-09 1981-07-07 Taga Electric Company, Limited Ultrasonic wave generating apparatus with voltage-controlled filter
US4399514A (en) * 1979-12-26 1983-08-16 Hitachi Shipbuilding & Engineering Co., Ltd. Method of inspecting internal pressures in sealed containers
FR2485727A1 (fr) * 1980-06-24 1981-12-31 Snecma Dispositif de mesure des frequences de resonnance des aubes de turbine, de compresseurs et de pales d'helices
JPS5713329A (en) * 1980-06-27 1982-01-23 Densoku Kogyo Kk Inspecting method of internal pressure in airtight container
US4393373A (en) * 1981-03-16 1983-07-12 Fuji Electrochemical Co., Ltd. Piezoelectric audible sound generator
JPH0630734B2 (ja) * 1983-08-05 1994-04-27 多賀電気株式会社 超音波変換器駆動制御方法
US4577503A (en) * 1984-09-04 1986-03-25 International Business Machines Corporation Method and device for detecting a specific acoustic spectral feature
US4644482A (en) * 1984-12-21 1987-02-17 Pressure Systems Incorporated Digital pressure transducer and corrections circuitry system
US4715559A (en) * 1986-05-15 1987-12-29 Fuller Christopher R Apparatus and method for global noise reduction
JPH0763193B2 (ja) * 1986-05-30 1995-07-05 日本電気株式会社 個別選択呼出受信機
US4783987A (en) * 1987-02-10 1988-11-15 The Board Of Regents Of The University Of Washington System for sustaining and monitoring the oscillation of piezoelectric elements exposed to energy-absorptive media
US4849668A (en) * 1987-05-19 1989-07-18 Massachusetts Institute Of Technology Embedded piezoelectric structure and control
JP2814241B2 (ja) * 1987-09-25 1998-10-22 株式会社ブリヂストン 振動制御装置
US4808948A (en) * 1987-09-28 1989-02-28 Kulicke And Soffa Indusries, Inc. Automatic tuning system for ultrasonic generators
US4869097A (en) * 1988-03-23 1989-09-26 Rockwell International Corporation Sonic gas pressure gauge
JPH065192B2 (ja) * 1988-11-25 1994-01-19 アイエムブイ株式会社 振動制御装置
US5195046A (en) * 1989-01-10 1993-03-16 Gerardi Joseph J Method and apparatus for structural integrity monitoring
US4958100A (en) * 1989-02-22 1990-09-18 Massachusetts Institute Of Technology Actuated truss system
US5060974A (en) * 1990-04-30 1991-10-29 Oea, Inc. Gas inflator apparatus
US5245552A (en) * 1990-10-31 1993-09-14 The Boeing Company Method and apparatus for actively reducing multiple-source repetitive vibrations
US5229744A (en) * 1990-11-27 1993-07-20 Ngk Spark Plug Co., Ltd. Piezoelectric type pager
US5233274A (en) * 1990-11-30 1993-08-03 Asmo Co., Ltd. Drive circuit for langevin type ultrasonic bolt-tightening motor
US5156370A (en) * 1991-03-04 1992-10-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for minimizing multiple degree of freedom vibration transmission between two regions of a structure
DE4238924A1 (de) * 1992-11-19 1994-05-26 Bosch Gmbh Robert Elektroakustischer Wandler
US5351527A (en) * 1992-12-04 1994-10-04 Trw Vehicle Safety Systems Inc. Method and apparatus for testing fluid pressure in a sealed vessel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112504616A (zh) * 2020-11-18 2021-03-16 中国空气动力研究与发展中心 一种天平动态力谐波抑制方法及装置

Also Published As

Publication number Publication date
JPH08275278A (ja) 1996-10-18
US5656779A (en) 1997-08-12
KR100220305B1 (ko) 1999-09-15
JP3580931B2 (ja) 2004-10-27
EP0724243B1 (de) 2002-01-23
EP0724243A1 (de) 1996-07-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NORTHROP GRUMMAN CORP. (N.D.GES.D.STAATES DELAWARE

8339 Ceased/non-payment of the annual fee