FR2396294A1 - Ultrasonic testing of construction materials - employs pulsed ultrasonic waves to measure propagation time through material - Google Patents

Ultrasonic testing of construction materials - employs pulsed ultrasonic waves to measure propagation time through material

Info

Publication number
FR2396294A1
FR2396294A1 FR7719820A FR7719820A FR2396294A1 FR 2396294 A1 FR2396294 A1 FR 2396294A1 FR 7719820 A FR7719820 A FR 7719820A FR 7719820 A FR7719820 A FR 7719820A FR 2396294 A1 FR2396294 A1 FR 2396294A1
Authority
FR
France
Prior art keywords
signals
propagation time
ultrasonic waves
construction materials
measure propagation
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.)
Withdrawn
Application number
FR7719820A
Other languages
French (fr)
Inventor
V S Yamschikov
A A Lukashev
G G Agasiev
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.)
INST RAZRABOTKE NERAZRUSH
Original Assignee
INST RAZRABOTKE NERAZRUSH
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 INST RAZRABOTKE NERAZRUSH filed Critical INST RAZRABOTKE NERAZRUSH
Priority to FR7719820A priority Critical patent/FR2396294A1/en
Publication of FR2396294A1 publication Critical patent/FR2396294A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Building materials such as concrete and granite are tested for faults and fissures by subjecting them to pulsed ultrasonic waves to measure propagation time through the material. A pilot generator (1) is connected to a pulse generator (3) whose output drives an electroacoustic convertor transmitter (7) mounted on the surface of the construction material (8) under investigation. An electroacoustic receiver (9) with two resonators receives the transmitted signals. One resonator receives a direct signal while the other has an inbuilt delay. Both signals are amplified (12, 13) and multiplied (14). The signals are then formed into digital signals having time intervals. After processing the digital signals are converted into video signals.
FR7719820A 1977-06-28 1977-06-28 Ultrasonic testing of construction materials - employs pulsed ultrasonic waves to measure propagation time through material Withdrawn FR2396294A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7719820A FR2396294A1 (en) 1977-06-28 1977-06-28 Ultrasonic testing of construction materials - employs pulsed ultrasonic waves to measure propagation time through material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7719820A FR2396294A1 (en) 1977-06-28 1977-06-28 Ultrasonic testing of construction materials - employs pulsed ultrasonic waves to measure propagation time through material

Publications (1)

Publication Number Publication Date
FR2396294A1 true FR2396294A1 (en) 1979-01-26

Family

ID=9192676

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7719820A Withdrawn FR2396294A1 (en) 1977-06-28 1977-06-28 Ultrasonic testing of construction materials - employs pulsed ultrasonic waves to measure propagation time through material

Country Status (1)

Country Link
FR (1) FR2396294A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997001095A1 (en) * 1995-06-21 1997-01-09 Tecal Centro De Tecnología De Control De Calidad, S.A. Non destructive process for automatically measuring structural parameters in green ceramic materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997001095A1 (en) * 1995-06-21 1997-01-09 Tecal Centro De Tecnología De Control De Calidad, S.A. Non destructive process for automatically measuring structural parameters in green ceramic materials
ES2110362A1 (en) * 1995-06-21 1998-02-01 Tecal Centro De Tecnologia De Non destructive process for automatically measuring structural parameters in green ceramic materials

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Legal Events

Date Code Title Description
ST Notification of lapse