Ultrasonic flaw detectors can be divided according to different classification standards.
Classification by measurement principle: Flaw detectors can be divided into digital ultrasonic flaw detectors, ultrasonic flaw detectors, magnetic particle flaw detectors, eddy current flaw detectors, radiographic flaw detectors and fluorescent flaw detectors according to the measurement principle. These instruments are mainly used to detect defects inside machined parts, such as cracks, sand holes, pores, white spots, inclusions, etc., as well as the qualification of welds.
Classification by application field: Ultrasonic flaw detectors are widely used in multiple industrial fields, including boilers, pressure vessels, aerospace, aviation, electricity, petroleum, chemical industry, offshore oil, pipelines, military industry, shipbuilding, automobiles, machinery manufacturing, metallurgy, steel structure, railway transportation and nuclear power. These application fields have different requirements for flaw detectors, so flaw detectors also need to have different functions and characteristics to adapt to different working environments.
Classification by functional characteristics: Ultrasonic flaw detectors are fast, convenient, non-destructive and accurate, and can detect a variety of defects inside workpieces, such as longitudinal cracks, transverse cracks, looseness, pores and slag inclusions, etc. These instruments can be used in laboratories as well as on-site projects and have a wide range of applications.