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FR2124747A5 - Miniature piezoelectric pressure probe - with piezoelectric layer, inner, outer electrode around taylor wire - Google Patents

Miniature piezoelectric pressure probe - with piezoelectric layer, inner, outer electrode around taylor wire

Info

Publication number
FR2124747A5
FR2124747A5 FR7201079A FR7201079A FR2124747A5 FR 2124747 A5 FR2124747 A5 FR 2124747A5 FR 7201079 A FR7201079 A FR 7201079A FR 7201079 A FR7201079 A FR 7201079A FR 2124747 A5 FR2124747 A5 FR 2124747A5
Authority
FR
France
Prior art keywords
outer electrode
pressure probe
piezoelectric
miniature
electrode around
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
Application number
FR7201079A
Other languages
French (fr)
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Application granted granted Critical
Publication of FR2124747A5 publication Critical patent/FR2124747A5/en
Expired legal-status Critical Current

Links

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
    • 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
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
    • B06B1/0677—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface and a high impedance backing
    • 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physiology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Miniature piezoelectric pressure probe consisting of a central Taylor wire as the carrer. The vapour deposition sequence for the carrier coatings is a) an inner electrode, conductivity connected to the wire; b) a thin (1-40 mu) layer of a piezoelectric material; c) an outer electrode.
FR7201079A 1971-01-25 1972-01-13 Miniature piezoelectric pressure probe - with piezoelectric layer, inner, outer electrode around taylor wire Expired FR2124747A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712103237 DE2103237A1 (en) 1971-01-25 1971-01-25 Piezoelectric pressure probe

Publications (1)

Publication Number Publication Date
FR2124747A5 true FR2124747A5 (en) 1972-09-22

Family

ID=5796773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7201079A Expired FR2124747A5 (en) 1971-01-25 1972-01-13 Miniature piezoelectric pressure probe - with piezoelectric layer, inner, outer electrode around taylor wire

Country Status (4)

Country Link
CH (1) CH533300A (en)
DE (1) DE2103237A1 (en)
FR (1) FR2124747A5 (en)
NL (1) NL7200054A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375466B (en) * 1977-07-27 1984-08-10 List Hans MEASURING VALUE WITH A PIEZOELECTRIC MEASURING ELEMENT
DE3021088A1 (en) * 1980-06-04 1981-12-10 Robert Bosch Gmbh, 7000 Stuttgart Capacitive press. sensor e.g. for IC engines - has dielectric and two electrodes formed as disc or tube

Also Published As

Publication number Publication date
CH533300A (en) 1973-01-31
DE2103237A1 (en) 1972-08-24
NL7200054A (en) 1972-07-27

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Legal Events

Date Code Title Description
ST Notification of lapse