Vibrant NDT Services is an adaptable NDT service provider, a Leader in NDT with ISO 9001:2008 & ISO EIC 17025 certification, capable of addressing a variety of Non-Destructive Testing demands worldwide. The Company has established itself as a high-tech firm, specializing, in research and developments in the area of Non-Destructive Testing. It has the most modern manufacturing facilities at Ambattur, Chennai, with a well-equipped application Laboratory and training Institute with sophisticated measuring Instruments and standards.
Vibrant NDT leads the way with new inspection techniques driven by the needs and specific applications of the industry to offer you a broader range of inspection solutions & NDT Equipment. We offer the following services to our clients,
- Non Destructive Testing (NDT) & Partial Destructive Testing
- Manufacture, Supply, AMC, and Calibration of NDT Equipment
- Training & Certifications for ASNT Level-II & Welder Qualifications
- Manpower Supply & NDT Equipment Rental
Products & Services
Phased Array Ultrasonic Testing
Phased array ultrasonics (PA) is an advanced method of ultrasonic testing that has applications in medical imaging and industrial nondestructive testing. Common applications are to non-invasively examine the heart or to find flaws in manufactured materials such as welds. Single-element (non-phased array) probes, known technically as monolithic probes, emit a beam in a fixed direction. To test or interrogate a large volume of material, a conventional probe must be physically scanned (moved or turned) to sweep the beam through the area of interest. In contrast, the beam from a phased array probe can be focused and swept electronically without moving the probe. The beam is controllable because a phased array probe is made up of multiple small elements, each of which can be pulsed individually at a computer-calculated timing. The term phased refers to the timing, and the term array refers to the multiple elements. Phased array ultrasonic testing is based on principles of wave physics, which also have applications in fields such as optics and electro-magnetic antennae.
Time of Flight Diffraction
Although time-of-flight diffraction (TOFD) can be used for a variety of applications, its primary use is rapid weld testing of circumferential and axial weld seams, also known as perpendicular TOFD scanning. Since the introduction of TOFD in the 1970s, the use of this reputed reliable nondestructive testing technique has steadily increased. Manual execution is possible with TOFD, however, it is most commonly performed in combination with a recording device, that is, an encoder or industrial scanner. To achieve code compliance in North America, TOFD is often coupled with pulse-echo or phased array techniques to cover the root and cap regions of the weld.
Popular TOFD Weld Inspection Techniques
TOFD can be used independently or in conjunction with other ultrasonic techniques. Some of the most common techniques are:
- Single group TOFD
- Multiple TOFD
- TOFD with pulse-echo/creeping waves
- TOFD with phased array
Magnetic flux leakage
Magnetic flux leakage (MFL) is a magnetic method of nondestructive testing that is used to detect corrosion and pitting in steel structures, most commonly pipelines and storage tanks. The basic principle is that a powerful magnet is used to magnetize the steel. At areas where there is corrosion or missing metal, the magnetic field “leaks” from the steel. In an MFL tool, a magnetic detector is placed between the poles of the magnet to detect the leakage field. Analysts interpret the chart recording of the leakage field to identify damaged areas and to estimate the depth of metal loss.