15 November 2023
The frequency of sending a probing pulse to eliminate false indications

The importance of choosing the frequency of sending a probing pulse to eliminate false indications associated with the design of the control object, using the example of a thick-walled object with a thickness of 300 mm.

15 June 2023
Development of equipment and methods for ultrasonic inspection of rotary kiln bandages

Ultrasonic inspection of rotating furnace bandages during their operation to identify and visualize internal and surface defects.

28 November 2022
Segmentation of the ultrasonic image of reflectors based on the analysis of the proximity of the histogram to the Rayleigh distribution

The article proposes a segmentation method based on the construction of a binary mask that hides the glare of reflectors.

18 August 2022
Mechanized ultrasonic inspection of overflowing joints of the main gas pipeline

For ultrasonic inspection of the overflowing joints of the main gas pipeline, a mechanized ultrasonic inspection procedure has been developed that meets the requirements of EN ISO 13588:2019, control level C and EN ISO 10863:2020, control level C.

9 June 2022
TOFD control method

The use of TOFD technology in the development of the ECHOPLUS. Overview of the capabilities of the equipment and software developed by the ECHOPLUS in order to implement the TOFD technology.

8 June 2022
Nuclear power plants

In this article you will learn what a nuclear power plant is and how it is used. Advantages and features of nuclear power plants. Areas of application.

8 June 2022
Ultrasonic thickness measurement

In this article you will learn what ultrasonic thickness measurement is, when and where it is used. Devices for conducting ultrasound. Types of thickness measurement. Principles and algorithms of work.

16 February 2022
Calculation of the error in determining the amplitude of the glare of the reflector image restored by the CVA method, depending on the step of the image grid

When conducting monitoring using the analysis of the image of reflectors restored by the digital focusing antenna (CFA) method, it is necessary to choose the optimal grid step sizes of the image restoration area (OVI). A very rough step can lead to a significant error in determining the amplitude of the reflector block, and a very careful step can unreasonably increase the recovery time of the CFA image.

14 February 2022
Control of a sample made of bronze BrX0.8 with a thickness of 100 mm

Many grades of bronze are a poor material for ultrasonic testing, since bronze has a high level of structural noise and noticeable anisotropy. This note describes technologies for reducing the level of structural noise using the example of using ultrasonic antenna arrays with high frequency.

8 February 2022
Ultrasonic inspection of two samples of polyethylene pipes using PWI technology

Conducting ultrasonic inspection (ultrasound) of two samples of thick-walled pipes made of high-pressure polyethylene using Plane Wave Imaging (PWI) technology and combining partial images using coherent factor (CF) technology in order to increase the signal-to-noise ratio.

3 February 2022
A new method of control of welded joints made according to the technology of contact butt welding by reflow

In welded joints made by contact butt welding by reflow (CSF), the most dangerous and difficult to detect defects are vertical non-melts that do not have access to any of the pipeline surfaces.

7 October 2021
Overview of new international standards for the use of CFA (TFM)

There is a concept of technology maturity levels (technology readiness level — TRL), which describes the technology transition from the TRL 1 level. “The fundamental concept of technology has been formulated” to the TRL 9 level. “The product meets all requirements: engineering, production, operational, quality and reliability.” So the Total Focusing Method technology, aka digital antenna focusing (CFA), aka combinational SAFT, aka IWEX, aka Sampled Phased Arrays (SPA) has turned from an exotic and contested algorithm into a standardized one.

30 August 2021
Ultrasonic inspection of welded joints of the pipeline type DN800. Part II

In the first part of the article, it is shown that in order to restore a high-quality image of reflectors in a welded joint of a pipeline of the Du800 type, it is not enough to use the CFA method in a variant designed for the propagation of ultrasound in a homogeneous isotropic medium. To further improve the image quality in the CFA method, it is necessary to: determine the elastic properties of the surfacing of the Dn800 pipeline and take into account its anisotropy during ultrasound propagation, as well as the surface profile. To increase the resolution and reduce the noise level, the CFR-H and maximum entropy (ME) methods were applied. Comparison of the results of ultrasound and X-ray controls allowed us to conclude that the first of them is more informative for detecting crack-like reflectors.

26 August 2021
Determination of the type of reflector from the image reconstructed from echo signals measured by ultrasonic antenna arrays

The application of the digital image focusing (DFA) method to determine the type of detected reflectors is considered. To do this, two antenna arrays are used, located on opposite sides of the reflector, with the help of which echo signals are recorded through three acoustic channels in the double scanning mode.

4 April 2021
Application of PLANE WAVE IMAGING technology in ultrasonic non-destructive testing

The Plane Wave Imaging (PHI) method allows you to combine the advantages of phased array antenna technology (FAR) and CFA technology. In PWI mode, when emitting a plane wave, all elements of the antenna array (AR) work (as in the HEADLIGHT mode), which allows you to increase the energy entered into the control object, and echo signals are recorded by all elements of the AR (as in the CFA mode).

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