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Overview and Applications of Time-Delayed Block Ultrasonic Probes
Release time:
2025-03-12 09:37
Overview: Delay block ultrasonic transducers provide different ultrasonic testing functions and options by adding a delay block below the transducer. The delay block is designed according to the needs, with options such as detachable delay blocks, surface protective films, and rubber delay blocks. The main function of the delay block transducer is to utilize the time delay between the transducer chip and the workpiece surface, which can improve the surface resolution. Delay block transducers are designed for high-precision thickness measurement, layered detection of application materials and composite materials such as ultra-thin workpieces. Delay blocks made of high-temperature resistant materials can also be used to make high-temperature ultrasonic transducers for high-temperature material detection.
Applications:Delay block transducers are often used for ultra-thin workpiece detection and high-precision thickness measurement. Therefore, high frequencies such as 10MHz/15MHz/20MHz are often used. Ultra-high frequency ultrasonic transducers need to have narrow pulse wideband characteristics, and have high accuracy and practicality in ultrasonic testing of thin metal components or welded joints.
Further Information
Transducer Classification
Ultrasonic transducers are mainly divided into: straight transducers, angled transducers, dual crystal transducers, insulator transducers, creeping wave transducers, variable angle transducers, transducers with curvature, focused transducers, surface wave transducers, immersion transducers, thickness transducers, high-temperature transducers, etc.
Main Functions
The main functions of the ultrasonic flaw detector transducer are: firstly, to convert the returning sound waves into electrical pulses; secondly, to control the propagation direction and energy concentration of the ultrasonic waves. When changing the incident angle of the transducer or changing the diffusion angle of the ultrasonic waves, the main energy of the sound waves can be made to enter the medium at different angles or change the directivity of the sound waves, improving resolution; thirdly, to achieve waveform conversion; fourthly, to control the operating frequency, suitable for different working conditions.
Application Areas
♦ Precise thickness measurement
♦ Vertical beam flaw detection
♦ Detection of workpieces with limited contact area
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