LN-200 | Ultra-High Frequency (UHF) Needle Transducer
The LN-200 is a compact, needle-type ultrasonic transducer optimized for intermediate-resolution imaging with enhanced focal precision. With a center frequency of 207 MHz and a small aperture design, it achieves sub-10 μm lateral resolution, making it suitable for detailed corneal, dermatological, and intraoperative micro-ultrasound applications.
Parameter | Specification |
|---|---|
Center Frequency | 207 MHz |
Bandwidth (-6 dB) | 44.2% |
Piezoelectric Material | LiNbO₃ (36° Y-cut) |
Element Thickness | 13 µm |
Aperture Size | 0.8 × 0.8 mm² |
Focal Length | 0.66 mm |
f-number | 0.83 |
Lateral Resolution | 6.2 µm |
Axial Resolution | 8.5 µm |
Impedance at Resonance | 38 Ω |
Coupling Coefficient (k) | 0.47 |
Matching Layer | Parylene (~2.5 µm) |
Pulse Length (-6 dB) | 12 ns |
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