Precision Acoustics Ltd products

Ultrasonic Transducers

Precision Acoustics - HIFU Transducers for Medical Research

Precision Acoustics Ltd offers HIFU (High-Intensity Focused Ultrasound) transducers primarily utilized in medical research. These transducers are notable for their precision and versatility across a frequency range of 0.2 MHz to 50 MHz, achieved using various materials. The product's design ensures optimal performance by balancing resonance and damping characteristics, directly influencing the output amplitude and bandwidth percentage. Piezo-ceramic transducers, known for their high electrical to mechanical conversion efficiency, are used in resonant applications. However, they require substantial damping for broadband purposes, generally featuring a pulse duration of 4-5 cycles. Such transducers integrate a quarter-wave matching layer and an electrical impedance matching network to ensure effective power transfer from common 50 Ω output impedance function generators. Conversely, piezo-polymer materials like PVdF exhibit higher internal damping, offering high axial resolution, making them excellent for receiving applications. Precision Acoustics creates miniature piezo-polymer transducers with frequencies exceeding 35 MHz. These designs circumvent the need for acoustic matching layers due to the material's compatibility with water’s acoustic impedance. For technical inquiries or purchases, contact Precision Acoustics via phone or email.