Hyperboloid Ultrasonic Transducers
Hyperboloid ultrasonic transducers feature an aspherical focusing active surface, generally larger than conventional probes. Its profile is computationally optimized so acoustic waves from every surface point converge simultaneously at the defect, making it application-specific.
Many key industrial components are made of ultrasound-challenging materials like titanium and austenitic steel, which suffer high attenuation and poor homogeneity. Detecting defects of certain size, depth and severity demands high lateral resolution. Achieving this over long sound paths at low frequencies requires large-aperture focusing transducers, especially when inspecting through defocusing interfaces. Aspherical focusing probes are specially designed to focus accurately through toroidal interfaces to target precise material depths, delivering reliable performance for these challenging inspection tasks.
Product Parameters

The effective focusing area of ​​an aspherical surface is calculated using planar, cylindrical, or toroidal interfaces to achieve optimal focusing at a specific location within the material at a given refraction angle.

Broadband transducer apertures combined with hyperboloids significantly improve lateral resolution and signal-to-noise ratio. This technique typically employs immersion pulse-echo detection.

● Performance Characteristics:

   1. Piezoelectric composite material technology

   2. Center frequency (-6dB): 1MHz to 10MHz

   3. Relative bandwidth (-6dB): 60% to 90%

   4. Acoustic impedance matching: Acoustic impedance matched to water. Compared to monolithic piezoelectric ceramics, this results in better energy transfer and, combined with strong electroacoustic performance, improves sensitivity levels by 10 to 50dB.

   5. Waterproof Stainless Steel Housing and Waterproof UHF Connector

● Applications:

   1. Inspection of thick-walled components and heterogeneous materials

   2. Multi-region billet inspection

   3. Thick plate inspection

   4. Heavy forging inspection

   5. Nuclear vessel inspection

● Advantages:

   1. Ultra-high resolution and signal-to-noise ratio

   2. Based on piezoelectric composite material technology, beamform closely matches simulation

   3. Hyperboloid surface supports flexible high-resolution beam focusing and scanning

CIVA sound field simulation: underwater sound field on both the XZ and YZ planes.







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