GB986574A - Improvements in electro-acoustic measuring and indicating apparatus - Google Patents

Improvements in electro-acoustic measuring and indicating apparatus

Info

Publication number
GB986574A
GB986574A GB2744961A GB2744961A GB986574A GB 986574 A GB986574 A GB 986574A GB 2744961 A GB2744961 A GB 2744961A GB 2744961 A GB2744961 A GB 2744961A GB 986574 A GB986574 A GB 986574A
Authority
GB
United Kingdom
Prior art keywords
depth
tissue
pulses
utilized
screen
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
GB2744961A
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.)
JOHN HAYWARD PARK
Original Assignee
JOHN HAYWARD PARK
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 JOHN HAYWARD PARK filed Critical JOHN HAYWARD PARK
Priority to GB2744961A priority Critical patent/GB986574A/en
Publication of GB986574A publication Critical patent/GB986574A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

986,574. Acoustic-echo distance measurement. J. H. PARK. Oct. 25, 1962 [July 28, 1961], No. 27449/61. Heading H4D. The depth of animal tissue is deduced from the travel time of pressure pulses between a transmitting transducer 2 and a receiving transducer 1 after reflection of a boundary of said tissue. In the embodiment described, the received pulses are utilized as bright-up pulses for a cathode-ray tube display 8 on which a circular trace is produced under the control of the time base circuit 9. The circumferential distance of the bright spot from a given datum is thus a measure of the tissue depth and a suitably calibrated scale superimposed on the screen of the tube may be utilized for direct reading of such depth. The transducer probe 1 comprises a housing of plastic material and to prevent interference a screen 4 is positioned between the two crystal transducers 1, 2.
GB2744961A 1961-07-28 1961-07-28 Improvements in electro-acoustic measuring and indicating apparatus Expired GB986574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2744961A GB986574A (en) 1961-07-28 1961-07-28 Improvements in electro-acoustic measuring and indicating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2744961A GB986574A (en) 1961-07-28 1961-07-28 Improvements in electro-acoustic measuring and indicating apparatus

Publications (1)

Publication Number Publication Date
GB986574A true GB986574A (en) 1965-03-17

Family

ID=10259776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2744961A Expired GB986574A (en) 1961-07-28 1961-07-28 Improvements in electro-acoustic measuring and indicating apparatus

Country Status (1)

Country Link
GB (1) GB986574A (en)

Similar Documents

Publication Publication Date Title
JPS5424062A (en) Ultrasonic type measuring apparatus
GB947076A (en) Improvements in blood pressure measurement
GB1411223A (en) Apparatus and method for measuring the level of the contents of a container
ES346849A1 (en) Ultrasonic pulse distance measuring device
ES469377A1 (en) Interior gauge
GB1521303A (en) Ultrasonic non-destructive pulse testing apparatus
GB1332924A (en) Arrangements and methods for the measurement of acoustiv velocity
US2304965A (en) Wave front indicator
GB986574A (en) Improvements in electro-acoustic measuring and indicating apparatus
FR2447030A1 (en) METHOD AND APPARATUS FOR MEASURING THE INFLATION SPEED OF POLYMER FOAM
JPS5560873A (en) Indication system for echo sounder
JPS5234692A (en) Radar signal indicator
JPS56124072A (en) Optical wave distance measurement instrument
IT975114B (en) REFERENCE SAMPLE BLOCK FOR THE CALIBRATION OF AN INSTRUMENT OF A UNIVERSAL MEASURING BAMCO
GB842653A (en) Ultrasonic inspection apparatus
JPS55135767A (en) Depth measuring system
GB1491865A (en) Instrument or apparatus for the measurement of viscosity
GB1260712A (en) Ultrasonic pulse-echo apparatus
GB1273479A (en) Method and device for determining tolerance values in cam profiles
JPS5262072A (en) Device for measuring observation waveforms of oscilloscope
GB1472472A (en) Methods of ultrasonic testing
GB790934A (en) Improvements in or relating to the measurement of heights, distances and direction by means of sonic and ultrasonic sound vibrations
GB873801A (en) Improvements in apparatus for ascertaining the level of a surface of a body of liquid
SU140247A1 (en) Device for measuring moisture, such as soil
GB1330285A (en) Method of measuring and registering the depth of underwater elements of a trawl set and apparatus for using the method