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Improved coupling medium supply of an ultrasonic test device

A technology for coupling media and inspection devices, applied in the use of sound waves/ultrasonic waves/infrasonic waves for material analysis, measurement devices, reduction of greenhouse gases, etc.

Inactive Publication Date: 2012-11-14
GE SENSING & INSPECTION TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

What is more difficult for a bubble-free coupling medium supply are the different cross-sections and pressure relationships within the supply system, which however cannot be avoided due to construction requirements, since eg transitions from rigid pipes to movable hoses are unavoidable

Method used

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  • Improved coupling medium supply of an ultrasonic test device

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Embodiment Construction

[0032] figure 1 In an advantageous embodiment, the method according to the invention is shown schematically, wherein substantially only the components provided for the supply of the coupling medium are shown, and for the sake of clarity, apart from the test head, no one provided for the ultrasonic examination is shown. Components and related test objects. A coupling medium (preferably natural water) is used for the acoustic coupling between the associated test head 8 and the object to be examined by means of ultrasound and is conveyed into a coupling chamber provided for this purpose, not shown in detail . The supply of the coupling medium according to the invention provides for a continuous circulation of the coupling medium. This cycle can be performed during and / or prior to the ultrasonic inspection. The forced circulation in the embodiment shown is effected via lines 2 , 3 and distributor 4 , settling tank 1 and pump 5 . Here, a settling tank 1 for degassing the coupli...

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Abstract

The invention relates to an ultrasonic test method having an ultrasonic test step, wherein a test item is checked non-destructively by means of ultrasound generated by an ultrasonic test head, wherein a liquid coupling medium continuously circulates outside of the test head. Part of the coupling medium is diverted and fed into a coupling chamber between the ultrasonic test head and the test item. The coupling agent circuit also comprises a degassing device. Gas bubbles in the coupling agents are removed from the coupling agent by means of a settling tank and a zigzag conduit.

Description

technical field [0001] The invention relates to a device and a method for non-destructive ultrasonic testing by improved, in particular bubble-free, feeding of a coupling medium into a coupling chamber between an ultrasonic testing head and a non-destructive inspection by means of ultrasound. between the tested objects. Background technique [0002] The principles of ultrasonography are known. It is used to detect casting defects or other material defects such as cracks, air bubbles, shrinkage holes (Lunkers). In the case of bar testing, this is in particular the inspection of internal defects and the inspection of surface defects, but also dimensional inspections. In this case, the ultrasonic testing head has at least one transmitter, energizable by means of electrical pulses, for generating short-term ultrasonic pulses which are directed into the test material to be tested. Any defect such as cracks, air bubbles in the material to be inspected will cause an echo of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/28
CPCG01N29/28G01N29/265G01N29/27
Inventor R·普劳泽C·布雷登巴赫
Owner GE SENSING & INSPECTION TECH GMBH
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