ATE552496T1 - Methode und gerät zur hochpräzisionsmessung eines laufzeitabhängigen parameters - Google Patents

Methode und gerät zur hochpräzisionsmessung eines laufzeitabhängigen parameters

Info

Publication number
ATE552496T1
ATE552496T1 AT00919126T AT00919126T ATE552496T1 AT E552496 T1 ATE552496 T1 AT E552496T1 AT 00919126 T AT00919126 T AT 00919126T AT 00919126 T AT00919126 T AT 00919126T AT E552496 T1 ATE552496 T1 AT E552496T1
Authority
AT
Austria
Prior art keywords
location
energy wave
cyclically
received
medium
Prior art date
Application number
AT00919126T
Other languages
English (en)
Inventor
Arie Ariav
Original Assignee
Nexense Ltd
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 Nexense Ltd filed Critical Nexense Ltd
Application granted granted Critical
Publication of ATE552496T1 publication Critical patent/ATE552496T1/de

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves using microwaves or terahertz waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • 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
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • 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
    • G01N2291/02836—Flow rate, liquid level
    • 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
    • G01N2291/02881—Temperature
    • 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
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
AT00919126T 1999-04-28 2000-04-27 Methode und gerät zur hochpräzisionsmessung eines laufzeitabhängigen parameters ATE552496T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL12965199A IL129651A (en) 1999-04-28 1999-04-28 High-precision measuring method and apparatus
PCT/IL2000/000241 WO2000067013A1 (en) 1999-04-28 2000-04-27 High-precision measuring method and apparatus

Publications (1)

Publication Number Publication Date
ATE552496T1 true ATE552496T1 (de) 2012-04-15

Family

ID=11072739

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00919126T ATE552496T1 (de) 1999-04-28 2000-04-27 Methode und gerät zur hochpräzisionsmessung eines laufzeitabhängigen parameters

Country Status (8)

Country Link
US (2) US6621278B2 (de)
EP (1) EP1194773B1 (de)
JP (1) JP2002543423A (de)
AT (1) ATE552496T1 (de)
AU (1) AU3986900A (de)
CA (1) CA2370164C (de)
IL (1) IL129651A (de)
WO (1) WO2000067013A1 (de)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7080554B2 (en) 1999-04-28 2006-07-25 Nexense Ltd. High-precision measuring method and apparatus
EP1446679A4 (de) * 2001-10-24 2006-02-01 Nexense Ltd Verfahren und vorrichtung zur hochpräzisen messung
AU2003239377A1 (en) * 2002-05-07 2003-11-11 Enikia Llc Power theft prevention based on signature monitoring on power lines
WO2004005959A1 (en) * 2002-07-08 2004-01-15 Saab Marine Electronics Ab Level gauging system
US7250054B2 (en) * 2002-08-28 2007-07-31 Smith & Nephew, Inc. Systems, methods, and apparatuses for clamping and reclamping an orthopedic surgical cable
JP4146734B2 (ja) * 2003-01-17 2008-09-10 株式会社きんでん 超音波振動感知センサを用いた人の状態判別装置。
WO2004072658A2 (en) * 2003-02-13 2004-08-26 Nexense Ltd. Apparatus for making high-sensitivity measurements of various parameters, and sensors particularly useful in such apparatus
TWI353558B (en) * 2003-08-27 2011-12-01 Hon Hai Prec Ind Co Ltd An automatic measurement distribution system and m
IL160364A0 (en) * 2003-12-30 2009-02-11 Nexense Ltd Method and apparatus for measuring torque and other forces
IL159651A0 (en) * 2003-12-30 2004-06-01 Nexense Ltd Method and apparatus for measuring torque
US8403865B2 (en) 2004-02-05 2013-03-26 Earlysense Ltd. Prediction and monitoring of clinical episodes
US8491492B2 (en) 2004-02-05 2013-07-23 Earlysense Ltd. Monitoring a condition of a subject
US20070118054A1 (en) 2005-11-01 2007-05-24 Earlysense Ltd. Methods and systems for monitoring patients for clinical episodes
JP4809779B2 (ja) * 2004-02-05 2011-11-09 アーリーセンス・リミテッド 呼吸に現れる臨床的発症の予測及びモニタリング技術
US8942779B2 (en) 2004-02-05 2015-01-27 Early Sense Ltd. Monitoring a condition of a subject
US7314451B2 (en) 2005-04-25 2008-01-01 Earlysense Ltd. Techniques for prediction and monitoring of clinical episodes
IL160365A0 (en) * 2004-02-12 2005-11-20 Nexense Ltd Method and apparatus for detecting panel conditions
IL166760A0 (en) * 2004-05-13 2006-01-15 Nexense Ltd Method and apparatus for non-invasively monitoringconcentrations of glucose or other target substan ces
IL164991A0 (en) * 2004-06-10 2005-12-18 Nexense Ltd High-sensitivity sensors, sensor assemblies, and sensor apparatus for sensing various parameters
IL162940A0 (en) * 2004-07-08 2005-11-20 Yechiel Cohen Clamping device and dental handpiece including same
US20060079872A1 (en) * 2004-10-08 2006-04-13 Eggleston Jeffrey L Devices for detecting heating under a patient return electrode
TWI267761B (en) * 2004-12-03 2006-12-01 Hon Hai Prec Ind Co Ltd A simulative measurement demo system and method
US7490817B2 (en) * 2005-01-04 2009-02-17 Bfs Diversified Products Llc Distance indicating system and method
WO2006090383A2 (en) * 2005-02-22 2006-08-31 Nexense Ltd. Method and apparatus for precisely measuring wire tension and other conditions, and high-sensitivity vibration sensor constructed in accordance therewith
US20060206014A1 (en) * 2005-03-13 2006-09-14 Nexense Ltd. Ear probe particularly for measuring various physiological conditions particularly blood pressure, temperature and/or respiration
US11457813B2 (en) 2005-03-29 2022-10-04 Martin W. Roche Method for detecting body parameters
EP2510874A3 (de) 2005-03-29 2012-11-28 Martin Roche Biometrischer Sensor
US20110213221A1 (en) * 2005-03-29 2011-09-01 Roche Martin W Method for Detecting Body Parameters
CA2606474C (en) * 2005-04-27 2014-10-28 Roho, Inc Proximity sensor
US7364144B2 (en) * 2005-04-27 2008-04-29 Bfs Diversified Products, Llc Sensing and communication system and method
US7420462B2 (en) * 2006-01-23 2008-09-02 Bfs Diversified Products, Llc Air spring distance indicating system and method
US7328131B2 (en) * 2006-02-01 2008-02-05 Medtronic, Inc. Implantable pedometer
US8016859B2 (en) 2006-02-17 2011-09-13 Medtronic, Inc. Dynamic treatment system and method of use
US7993269B2 (en) * 2006-02-17 2011-08-09 Medtronic, Inc. Sensor and method for spinal monitoring
AU2006339993A1 (en) * 2006-03-14 2007-09-20 Mako Surgical Corp. Prosthetic device and system and method for implanting prosthetic device
US7389682B2 (en) * 2006-03-17 2008-06-24 Gm Global Technology Operations, Inc. Method and apparatus for engine torque sensing
US7733239B2 (en) * 2006-05-08 2010-06-08 Bfs Diversified Products, Llc Distance determining system and method
IL176025A0 (en) * 2006-05-30 2007-08-19 Nexense Ltd Force or displacement sensor
US8585607B2 (en) 2007-05-02 2013-11-19 Earlysense Ltd. Monitoring, predicting and treating clinical episodes
WO2009138976A2 (en) 2008-05-12 2009-11-19 Earlysense Ltd Monitoring, predicting and treating clinical episodes
US20080275349A1 (en) * 2007-05-02 2008-11-06 Earlysense Ltd. Monitoring, predicting and treating clinical episodes
US8229057B2 (en) 2007-10-12 2012-07-24 Intel-Ge Care Innovations Llc Apparatus and method for non-contact sensing using temporal measures
US9883809B2 (en) 2008-05-01 2018-02-06 Earlysense Ltd. Monitoring, predicting and treating clinical episodes
US8882684B2 (en) 2008-05-12 2014-11-11 Earlysense Ltd. Monitoring, predicting and treating clinical episodes
US8078440B2 (en) 2008-09-19 2011-12-13 Smith & Nephew, Inc. Operatively tuning implants for increased performance
WO2010046874A2 (en) 2008-10-24 2010-04-29 Hospitech Respiration Ltd. Method and system for ventilation
US8685093B2 (en) 2009-01-23 2014-04-01 Warsaw Orthopedic, Inc. Methods and systems for diagnosing, treating, or tracking spinal disorders
US8126736B2 (en) 2009-01-23 2012-02-28 Warsaw Orthopedic, Inc. Methods and systems for diagnosing, treating, or tracking spinal disorders
US20100249533A1 (en) * 2009-03-26 2010-09-30 Jay Pierce System and method for an orthopedic data repository and registry
FR2946753B1 (fr) * 2009-06-11 2011-07-22 Centre Nat Rech Scient Procede et dispositif ultrasonores pour caracteriser un milieu
US8427176B2 (en) * 2009-06-30 2013-04-23 Orthosensor Inc Pulsed waveguide sensing device and method for measuring a parameter
US8714009B2 (en) 2010-06-29 2014-05-06 Orthosensor Inc. Shielded capacitor sensor system for medical applications and method
US8707782B2 (en) 2009-06-30 2014-04-29 Orthosensor Inc Prosthetic component for monitoring synovial fluid and method
US20100331738A1 (en) * 2009-06-30 2010-12-30 Orthosensor Integrated sensor and interconnect for measuring a parameter of the muscular-skeletal system
US20100331733A1 (en) * 2009-06-30 2010-12-30 Orthosensor Sensing device and method for an orthopedic joint
US9462964B2 (en) 2011-09-23 2016-10-11 Orthosensor Inc Small form factor muscular-skeletal parameter measurement system
US8701484B2 (en) 2010-06-29 2014-04-22 Orthosensor Inc. Small form factor medical sensor structure and method therefor
US8679186B2 (en) 2010-06-29 2014-03-25 Ortho Sensor Inc. Hermetically sealed prosthetic component and method therefor
US8826733B2 (en) 2009-06-30 2014-09-09 Orthosensor Inc Sensored prosthetic component and method
US20100331679A1 (en) * 2009-06-30 2010-12-30 Orthosensor Pulsed echo sensing device and method for an orthopedic joint
US9839390B2 (en) 2009-06-30 2017-12-12 Orthosensor Inc. Prosthetic component having a compliant surface
US20110160616A1 (en) * 2009-06-30 2011-06-30 Orthosensor System and method for orthopedic load and location sensing
US8720270B2 (en) 2010-06-29 2014-05-13 Ortho Sensor Inc. Prosthetic component for monitoring joint health
US9259179B2 (en) 2012-02-27 2016-02-16 Orthosensor Inc. Prosthetic knee joint measurement system including energy harvesting and method therefor
WO2011114333A2 (en) 2010-03-17 2011-09-22 Hypnocore Ltd. Sleep analysis based on inter beat interval
US9332943B2 (en) 2011-09-23 2016-05-10 Orthosensor Inc Flexible surface parameter measurement system for the muscular-skeletal system
US8926530B2 (en) 2011-09-23 2015-01-06 Orthosensor Inc Orthopedic insert measuring system for having a sterilized cavity
JP5941912B2 (ja) 2010-06-29 2016-06-29 ホスピテック レスピレーション リミテッド 体腔の灌注排出を行なうための手動操作型の装置および方法
US8939030B2 (en) * 2010-06-29 2015-01-27 Orthosensor Inc Edge-detect receiver for orthopedic parameter sensing
US8979758B2 (en) 2010-06-29 2015-03-17 Orthosensor Inc Sensing module for orthopedic load sensing insert device
US10292625B2 (en) 2010-12-07 2019-05-21 Earlysense Ltd. Monitoring a sleeping subject
US8911448B2 (en) 2011-09-23 2014-12-16 Orthosensor, Inc Device and method for enabling an orthopedic tool for parameter measurement
US9414940B2 (en) 2011-09-23 2016-08-16 Orthosensor Inc. Sensored head for a measurement tool for the muscular-skeletal system
US9839374B2 (en) 2011-09-23 2017-12-12 Orthosensor Inc. System and method for vertebral load and location sensing
WO2013102905A1 (en) 2012-01-03 2013-07-11 Hospitech Respiration Ltd. System and method for controlling and monitoring flow in an endotracheal tube
US9622701B2 (en) 2012-02-27 2017-04-18 Orthosensor Inc Muscular-skeletal joint stability detection and method therefor
US9271675B2 (en) 2012-02-27 2016-03-01 Orthosensor Inc. Muscular-skeletal joint stability detection and method therefor
US9844335B2 (en) 2012-02-27 2017-12-19 Orthosensor Inc Measurement device for the muscular-skeletal system having load distribution plates
US20140135744A1 (en) 2012-11-09 2014-05-15 Orthosensor Inc Motion and orientation sensing module or device for positioning of implants
US11793424B2 (en) 2013-03-18 2023-10-24 Orthosensor, Inc. Kinetic assessment and alignment of the muscular-skeletal system and method therefor
US9265447B2 (en) 2013-03-18 2016-02-23 Orthosensor Inc. System for surgical information and feedback display
AU2017357747A1 (en) 2016-11-10 2019-05-30 The Research Foundation For The State University Of New York System, method and biomarkers for airway obstruction
AU2018332792B2 (en) 2017-09-14 2024-07-25 Howmedica Osteonics Corp. Non-symmetrical insert sensing system and method therefor
US12677146B2 (en) * 2018-09-14 2026-07-07 The Research Foundation For The State University Of New York Method and system for non-contact motion-based user authentication
US11812978B2 (en) 2019-10-15 2023-11-14 Orthosensor Inc. Knee balancing system using patient specific instruments

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1934960C3 (de) * 1969-07-10 1979-01-25 Prakla-Seismos Gmbh, 3000 Hannover Verfahren und Anordnung zum genauen Orten von Punkten
CH614051A5 (de) * 1977-04-07 1979-10-31 Siemens Ag Albis
US4186397A (en) * 1977-09-06 1980-01-29 Board Of Regents For Education Of The State Of Rhode Island Short range precision navigation and tracking system and method therefor
US4328567A (en) * 1979-11-15 1982-05-04 Halliburton Company Methods and apparatus for acoustic logging in earth formations
JPS5872009A (ja) * 1981-10-27 1983-04-28 Honda Motor Co Ltd 超音波流量計
US4480485A (en) * 1982-10-01 1984-11-06 Panametrics, Inc. Acoustic flowmeter with envelope midpoint tracking
US4664124A (en) * 1984-12-20 1987-05-12 The Kendall Company Biological fluid specific gravity monitor with ultrasonic sensor circuit
JPH0778438B2 (ja) * 1988-07-08 1995-08-23 エンドレス ウント ハウザー フローテック アクチエンゲゼルシヤフト 超音波流量測定方法及び装置
JPH06118068A (ja) * 1991-06-28 1994-04-28 Mitsubishi Heavy Ind Ltd 材料の非破壊検査装置及び方法
JPH05281341A (ja) * 1992-03-30 1993-10-29 Isao Iida 距離測定方法及びその装置
JPH06288993A (ja) * 1993-03-31 1994-10-18 Japan Tobacco Inc 超音波式多成分濃度計
AU3203797A (en) * 1996-05-03 1997-11-26 Ultrafast, Inc. A technique for eliminating ambiguity when making pulse-echo timing measurments
CA2310417C (en) * 2000-05-30 2010-02-23 Esi Environmental Sensors Inc. Fluid sensor

Also Published As

Publication number Publication date
AU3986900A (en) 2000-11-17
EP1194773A1 (de) 2002-04-10
US6856141B2 (en) 2005-02-15
US20040104733A1 (en) 2004-06-03
CA2370164A1 (en) 2000-11-09
US20020105340A1 (en) 2002-08-08
US6621278B2 (en) 2003-09-16
JP2002543423A (ja) 2002-12-17
EP1194773B1 (de) 2012-04-04
IL129651A (en) 2004-08-31
WO2000067013A1 (en) 2000-11-09
IL129651A0 (en) 2000-02-29
CA2370164C (en) 2008-11-25
EP1194773A4 (de) 2008-01-30

Similar Documents

Publication Publication Date Title
IL129651A0 (en) High precision measuring method and apparatus
CA1332458C (en) Distance and level measuring system
US10458871B2 (en) Apparatus and method for measuring the pressure inside a pipe or container
US20090085582A1 (en) Microwave determination of location and speed of an object inside a pipe
US8583381B2 (en) Ultrasonic propagation time measurement system
NO905314D0 (no) Anordning for nivaamaaling med mikroboelger.
EA201170081A1 (ru) Устройство и способ для определения местоположения объекта в трубопроводе
AU8532398A (en) Measurement of physical or technical values of viscous media by means of rayleigh waves
CN107014447A (zh) 使用宽带系统响应的超声波换能器系统及方法
SE7709041L (sv) Forfarande och anordning for bestemning av flyttillstandet hos en substans med flytformaga
WO2005111634A3 (en) High-precision measuring method and apparatus particularly useful for non-invasively monitoring glucose levels
RU2685578C1 (ru) Способ дистанционного контроля и диагностики состояния конструкций и инженерных сооружений и устройство для его осуществления
CN102323580A (zh) 一种采用三频连续微波无线测距系统及测距方法
RU2010227C1 (ru) Способ определения местоположения источников акустической эмиссии в трубопроводах
CN108169752A (zh) 一种基于无线通信的超声波测距方法及系统
WO2003048688A3 (en) Method and apparatus for making high-precision measurements
CN105181047A (zh) 一种沿海水流量高频声学监测系统及其监测方法
RU2001109620A (ru) Способ определения координат источника радиоизлучения и радиолокационная станция для его реализации
CN100356144C (zh) 一种确定流动介质流速的方法和装置
CN113189196B (zh) 一种基于超声波相位差技术进行气体浓度检测方法
SE9904570D0 (sv) A method and an apparatus for measuring roundness errors
Dai et al. Detection of underground pipeline based on Golay waveform design
Jazini et al. A new frequency detection method based on FFT in the application of SAW resonator sensor
EP1542003B1 (de) Gaskonzentrationsmessinstrument und gaskonzentrationsmessverfahren
WO2003036321A3 (en) High-precision measuring method and apparatus