CH533300A - Piezoelectric pressure probe - Google Patents

Piezoelectric pressure probe

Info

Publication number
CH533300A
CH533300A CH1752171A CH1752171A CH533300A CH 533300 A CH533300 A CH 533300A CH 1752171 A CH1752171 A CH 1752171A CH 1752171 A CH1752171 A CH 1752171A CH 533300 A CH533300 A CH 533300A
Authority
CH
Switzerland
Prior art keywords
pressure probe
piezoelectric pressure
piezoelectric
probe
pressure
Prior art date
Application number
CH1752171A
Other languages
German (de)
Inventor
Dieter Dr Bonnet
Hans Hansen Erich
Guenter Dr Hellmiss
Ernst-Guenter Dr Lierke
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of CH533300A publication Critical patent/CH533300A/en

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)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Physiology (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measuring Fluid Pressure (AREA)
CH1752171A 1971-01-25 1971-12-02 Piezoelectric pressure probe CH533300A (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
CH533300A true CH533300A (en) 1973-01-31

Family

ID=5796773

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1752171A CH533300A (en) 1971-01-25 1971-12-02 Piezoelectric pressure probe

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
NL7200054A (en) 1972-07-27
FR2124747A5 (en) 1972-09-22
DE2103237A1 (en) 1972-08-24

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Legal Events

Date Code Title Description
PL Patent ceased