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WO2005024367A3 - A method and system for calibrating resonating pressure sensors and calibratable resonating pressure sensors - Google Patents

A method and system for calibrating resonating pressure sensors and calibratable resonating pressure sensors Download PDF

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Publication number
WO2005024367A3
WO2005024367A3 PCT/IL2004/000807 IL2004000807W WO2005024367A3 WO 2005024367 A3 WO2005024367 A3 WO 2005024367A3 IL 2004000807 W IL2004000807 W IL 2004000807W WO 2005024367 A3 WO2005024367 A3 WO 2005024367A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
pressure
resonance frequency
pressure sensors
calibrating
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.)
Ceased
Application number
PCT/IL2004/000807
Other languages
French (fr)
Other versions
WO2005024367A2 (en
Inventor
Alexander Melamud
Stanislav Lokchine
Doron Girmonski
Shay Kaplan
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.)
Microsense Cardiovascular Systems 1996 Ltd
Original Assignee
Microsense Cardiovascular Systems 1996 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 Microsense Cardiovascular Systems 1996 Ltd filed Critical Microsense Cardiovascular Systems 1996 Ltd
Publication of WO2005024367A2 publication Critical patent/WO2005024367A2/en
Publication of WO2005024367A3 publication Critical patent/WO2005024367A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/04—Measuring blood pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
    • G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
    • 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
    • G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a diaphragm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Cardiology (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Physiology (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A calibratable pressure sensor group having a working pressure range. The sensor group may include a first resonating pressure sensor having a single resonance frequency extremum point at a known flipping point pressure value within a working pressure range, and at least a second resonating pressure sensor having a single resonance frequency extremum point at another different flipping point pressure value within the working pressure range. Methods for calibrating the sensor groups may include measuring the resonance frequency of the first sensor at the known flipping point pressure values of the first sensor and second sensor, measuring the resonance frequency of the second sensor at the flipping point pressure value of the first sensor, measuring the resonance frequency of the first sensor at the flipping point pressure value of the second sensor and computing calibration curve parameters for one or more of the sensors in the sensor group. For a periodically varying pressure the measurements may be repeated for multiple cycles and averaged values may be used in the computations. Methods and systems are provided for calibrating sensors of the group.
PCT/IL2004/000807 2003-09-08 2004-09-07 A method and system for calibrating resonating pressure sensors and calibratable resonating pressure sensors Ceased WO2005024367A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50064703P 2003-09-08 2003-09-08
US60/500,647 2003-09-08

Publications (2)

Publication Number Publication Date
WO2005024367A2 WO2005024367A2 (en) 2005-03-17
WO2005024367A3 true WO2005024367A3 (en) 2005-11-17

Family

ID=34272979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2004/000807 Ceased WO2005024367A2 (en) 2003-09-08 2004-09-07 A method and system for calibrating resonating pressure sensors and calibratable resonating pressure sensors

Country Status (1)

Country Link
WO (1) WO2005024367A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2750587B1 (en) 2011-09-01 2022-02-23 Microtech Medical Technologies Ltd. Implantable sensor device for measuring fluid pressure
EP2848908B1 (en) * 2013-09-16 2020-01-01 ams international AG Capacitive pressure sensor
CA3054887A1 (en) * 2017-03-02 2018-09-07 Atcor Medical Pty Ltd Non-invasive brachial blood pressure measurement
CN218920578U (en) 2021-04-23 2023-04-25 深圳市韶音科技有限公司 a microphone
CN116519197B (en) * 2023-06-27 2023-10-20 潍柴动力股份有限公司 A pressure difference characteristic curve selection method and device and a vehicle
DE102023212476A1 (en) 2023-12-11 2025-06-12 Robert Bosch Gesellschaft mit beschränkter Haftung Method of detection, method of compensation, method of operation and pressure sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622132A (en) * 1985-06-28 1987-01-08 Tdk Corp Pressure sensor
US6085594A (en) * 1998-09-04 2000-07-11 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High resolution and large dynamic range resonant pressure sensor based on Q-factor measurement
US6461301B2 (en) * 2000-03-21 2002-10-08 Radi Medical Systems Ab Resonance based pressure transducer system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622132A (en) * 1985-06-28 1987-01-08 Tdk Corp Pressure sensor
US6085594A (en) * 1998-09-04 2000-07-11 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High resolution and large dynamic range resonant pressure sensor based on Q-factor measurement
US6461301B2 (en) * 2000-03-21 2002-10-08 Radi Medical Systems Ab Resonance based pressure transducer system

Also Published As

Publication number Publication date
WO2005024367A2 (en) 2005-03-17

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