DK348480A - APPLICATION FOR USE IN ULTRAS SOUND - Google Patents

APPLICATION FOR USE IN ULTRAS SOUND

Info

Publication number
DK348480A
DK348480A DK348480A DK348480A DK348480A DK 348480 A DK348480 A DK 348480A DK 348480 A DK348480 A DK 348480A DK 348480 A DK348480 A DK 348480A DK 348480 A DK348480 A DK 348480A
Authority
DK
Denmark
Prior art keywords
sound
sound head
head
light beams
light
Prior art date
Application number
DK348480A
Other languages
Danish (da)
Other versions
DK145649B (en
DK145649C (en
Inventor
S Aa Lund
S E Iversen
Original Assignee
Akad Tekn Videnskaber
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 Akad Tekn Videnskaber filed Critical Akad Tekn Videnskaber
Priority to DK348480A priority Critical patent/DK145649C/en
Publication of DK348480A publication Critical patent/DK348480A/en
Publication of DK145649B publication Critical patent/DK145649B/en
Application granted granted Critical
Publication of DK145649C publication Critical patent/DK145649C/en

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

In an ultrasound investigation apparatus, which makes use of an angular sound head 4, which can be moved and turned in a free two-dimensional movement over the surface 3 of a material 1, means are required to determine the position of the sound emission point 8 of the sound head and the direction of the projection 7 of the sound path 5 on the surface of the material in order to use this to calculate the position of a point of reflection 2 in the interior of the material. These means consist of at least one light source 17 arranged on the sound head to emit at least three narrow light beams 18, 19, 20 with fixed mutual angles 21, 22 and fixed directions in relation to the sound head and at least one rectilinear line 23 of light-sensitive elements, which are struck by the light beams. In this way, the position and direction of the sound head can be determined with great precision, even if the sound head is moved quickly over the surface of the material. <IMAGE>
DK348480A 1980-08-12 1980-08-12 APPLICATION FOR USE IN ULTRAS SOUND DK145649C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK348480A DK145649C (en) 1980-08-12 1980-08-12 APPLICATION FOR USE IN ULTRAS SOUND

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK348480A DK145649C (en) 1980-08-12 1980-08-12 APPLICATION FOR USE IN ULTRAS SOUND
DK348480 1980-08-12

Publications (3)

Publication Number Publication Date
DK348480A true DK348480A (en) 1982-02-13
DK145649B DK145649B (en) 1983-01-10
DK145649C DK145649C (en) 1983-06-06

Family

ID=8123421

Family Applications (1)

Application Number Title Priority Date Filing Date
DK348480A DK145649C (en) 1980-08-12 1980-08-12 APPLICATION FOR USE IN ULTRAS SOUND

Country Status (1)

Country Link
DK (1) DK145649C (en)

Also Published As

Publication number Publication date
DK145649B (en) 1983-01-10
DK145649C (en) 1983-06-06

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Legal Events

Date Code Title Description
PBP Patent lapsed