Annular Array Transducer

BII7740s are bespoke broadband annular array (ring-array) transducers (Emitting and/or Receiving Sounds/Stress Waves) which have radially distributed symmetric ring elements on the circular radiation face. The elements are separated to support the amplitude shading (Weighting), array focusing and spreading (Phase Shift or Time Delay), acoustical imaging (Microscope, Holography, and Tomography), and tune the best compromise between main-beam sharpness and the side-lobe suppression. A dual beam or dual frequency transducer can be implemented by wiring different elements for transmit and receive. With dynamic focusing (Total Focusing Method TFM), both resolution and sensitivity are improved in detecting flaws or defects and acoustic imaging.

BII7740 Series Annular Array: Amplitude Shading, Dynamic Array Focusing & Spreading

Typical Applications
Acoustical Imaging (Microscope, Holography, and Tomography) Direction-finding Sonar, Echo Sounding High Resolution Sonar, Chirp/FM Sonar	Navigation, Obstacle Avoidance Transponder/Acoustic Positioning/Tracking Fishery Sonar, Bioacoustics, Marine Animal Behavior Research

Related Products
BII7690 NDT & Imaging Transducers	BII2100 Transmitting & Receiving Switch
BII5000 Power Amplifier	BII6000 Impedance Matching and Tuning

Specification

Annular Array Transducer:

Datasheet.

Structure

      

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