A Robust Adaptive Beamforming Method Performs Stably for Improving Ultrasound Imaging Quality
Minimum variance (MV) adaptive beamforming method has been applied in medical ultrasound imaging to improve lateral resolution. Compared with the conventional delay-and-sum (DAS) beamforming method, it can reduce aperture size, increase frame...
Read More >>New Acoustic Logging While Drilling Receiver Simulated with Small Size and Broad Frequency Band
Researchers from the State Key Laboratory of Acoustics, Institute of Acoustics of the Chinese Academy of Sciences simulate a new typed receiver with cavity structure composed by a bi-laminated piezoelectric bender and a hollow cylindrical she...
Read More >>Non-collinear Mixing Method is Feasible to Detect Plastic Zone at Crack Tip
By non-collinear mixing method, a nonlinearity parameter is utilized to evaluate plastic zone at crack tip. A schematic of the proposed non-collinear mixing method of the ultrasonic measurement system. Researchers from the Institute of Acoust...
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Ultrasonic Adaptive Bi-directional Point-wise Focusing Virtual Source Imaging Proves High Resolution and Consistent Contrast
Ultrasonic imaging is widely used in medical imaging and industrial detection. Higher qualities of ultrasonic imaging are needed for reliable examination of patients or detection of defects in industrial products. Many studies have been done ...
Read More >>How Can Rayleigh Waves Exploration Be Applied in Porous Layered Half-space?
It would be difficult if Rayleigh waves exploration is applied in porous layered half-space. To solve this problem, researchers from the Institute of Acoustics of the Chinese Academy of Sciences have theoretically researched on the dispersion...
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