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Ultrasonic flaw detector is a portable industrial non-destructive testing instrument, which can quickly, easily and without damage to detect, locate, evaluate and diagnose
a variety of defects (cracks, looseness, pores, inclusions, etc.
) inside the workpiece.
It can be used both in laboratories and on engineering sites
.
Widely used in boilers, pressure vessels, aerospace, aviation, electric power, petroleum, chemical, offshore oil, pipelines, shipbuilding, automobiles, machinery manufacturing, metallurgy, metal processing industry, steel structure, railway transportation, nuclear power, universities and other industries
.
Instrument principle ultrasonic propagation in the material to be detected, the change of acoustic properties of the material and the internal organization of the impact on the propagation of ultrasonic waves, through the detection of the degree and condition of ultrasonic impact to understand the material properties and structural changes technology is called ultrasonic detection
.
Ultrasonic detection methods usually include penetration method, pulse reflection method, series method and so on
.
Digital ultrasonic flaw detectors usually emit ultrasound on the measured object (such as industrial materials, human body), and then use its reflection, Doppler effect, transmission, etc.
to obtain the information inside the measured object and process it to form an image
.
