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Rotating Array Probe System for Nondestructive Testing

A technology for non-destructive testing and inspection systems, which is used in measurement devices, testing of mechanical parts, configuration/installation of recording heads, etc., which can solve a large number of problems that cannot provide easy and dynamic settings. Probe storage body incident inspection angle and depth of focus are wide Changes, the difficulty of the composite transducer to adapt to the diameter and wall thickness of the detection object, etc.

Active Publication Date: 2011-11-30
OLYMPUS NDT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] The most notable deficiencies of the Girndt method include: a large number of transducers are required for good inspection coverage compared to the rotating probe system described below; the fixed set of composite transducers is difficult to accommodate a wide range of inspected object diameters and wall thicknesses
[0028] While Walters' teaching overcomes many of the deficiencies in the background art described above, it does not provide easy and dynamic setup, wide variation in incident inspection angles of probe banks and focal depth
Additionally, the use of slip ring connectors for analog transducer signals creates problems associated with signal noise, limited bandwidth, and limited number of signal connections, as is readily understood by those skilled in the art.
[0029] Therefore, reviewing the background art can conclude that traditional ultrasonic inspection systems and phased array object rotation inspection systems have limitations in inspection quality, productivity, and cost-effectiveness

Method used

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  • Rotating Array Probe System for Nondestructive Testing
  • Rotating Array Probe System for Nondestructive Testing
  • Rotating Array Probe System for Nondestructive Testing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0146] refer to figure 1 , alternatively, a generator / power distributor 109 may be used instead of via the slip ring interface 705 ( Figure 7a and Figure 7b ) supplied external power. like figure 1 As shown, electricity is generated for the rotating probe assembly 100 by a generator 109 mounted on a rotating plate 108, and the drive shaft gear 109a of the generator 109 is connected to Figure 7c The gear 718 of the bearing 703 meshes. The energy supplied to the generator 109 is derived from rotational kinetic energy provided by the rotational drive 704 or 702 . The electrical conditioner / distributor 109c converts the electrical energy provided by the generator 109 into a direct or alternating voltage (i.e., DC or AC) suitable for power-demanding devices on the rotating plate 108, such as data acquisition units (DAU) 102 and battery 109b.

[0147] A charge monitoring device for the battery 109b may be located within the electrical regulator / dispenser 109c or the battery...

Embodiment approach 2

[0150] Instead of providing pressurized air to the pneumatic cylinders 106 in the manner described above in the preferred embodiment, an on-board air compressor arranged to the rotating plate 108 may alternatively be used.

[0151] refer to figure 1, as an alternative, ambient air may optionally be compressed by compressor 112 to be provided to working source distributor 125 as a source of pressurized air. The compressor 112 may be driven by an electric motor or alternatively may be driven by the mechanical energy of the rotating plate 108 in a similar manner to the generator 109 described above.

[0152] Furthermore, as an option, a pressurized vessel 113 may be utilized such that the compressor 112 may pressurize the vessel 113 that will provide pressurized air to the coupling ring 700 . Furthermore, it should be noted that only the pressurized container 113 is mounted to the rotating plate 108 is sufficient for supplying pressurized air to the working source distributor 12...

Embodiment approach 3

[0154] Instead use the previously described figure 1 and 8a The coupling ring 700 and coupling interface 706 shown in c69560-d68a-4f3f-ba29-ebb67d0bccef are in Figure 9a and Figure 9b A fixed couplant flush conduit 900 is shown in , which is mounted in a fixed position relative to the rotating plate 108 of the rotating probe assembly 100 . Dispersion nozzles 901a, 901b, etc. are circumferentially mounted to irrigation conduit 900 to provide a generally laminar flow of couplant, preferably water, between the sensing face of probes 103a and 103b and the corresponding inspection face 902.

[0155] An example of couplant dispersion is shown for dispersion nozzles 901a and 901b ( Figure 9a ). Dispersive couplants 904a and 904b are preferably applied to coupling regions 902a and 902b, respectively, in a direction as indicated by spray direction 904, which is preferably opposite the direction of axial feed of test object 110 and the direction of rotation of rotating plate 108 ...

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Abstract

A device is disclosed for performing non-destructive inspection and testing (NDT / NDI) of an elongated test object, wherein the inspection system includes: a test object conveyor for conveying the test object along a longitudinal conveyance path; a probe assembly including phased-array probes, the probe assembly being configured to induce signals in the test object and sense echoes reflected from the test object; a probe assembly conveyor configured to movably support the probe assembly, to move the probe assembly on a circumferential path about the test object; and a control system coupled to the test object conveyor and to the probe assembly conveyor and configured to allow data acquisition by and from the phased-array probes while, simultaneously, the test object moves along the longitudinal path and the phased-array probes move on the circumferential path. The test system may include phased-array probes of different types to optimize detecting faults or cracks in the test object which extend in different directions.

Description

technical field [0001] The present invention relates to a method of non-destructive testing and non-destructive inspection (NDT / NDI) for inspecting long test objects such as pipes, A phased array NDT / NDI system that rotates these test objects fed longitudinally into the inspection system. Background technique [0002] Today, in a wide range of industrial situations, it is important to detect and inspect objects such as manufactured structures and processed materials without damaging these objects. The advantages gained by inspecting the physical condition of an object to ensure that the object meets its specifications are known to manufacturers. Perhaps the most significant of these advantages is the increased efficiency and product quality achieved by preventing the use of inconsistent materials in the manufacturing process. Cylindrical structures such as tubes and rods, as well as non-cylindrical materials such as cast rods, comprise a large number of such objects. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/275G01B17/02
CPCG01M13/00G01N2291/2623G01N29/225G01N29/275G01M13/045G11B5/48G01N29/262G01N29/00G01N2291/2634
Inventor 克里斯・依姆博特M・德鲁米
Owner OLYMPUS NDT
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