ULTRASOUND TRANSMITTER DEVICES AND METHODS
Patent Information
- Application Number
- DE602020071825
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-08-28
- Filing Date
- 2020-08-27
- Publication Date
- 2026-05-06
- Estimated Expiration
- 2040-08-27
AI Technical Summary
Conventional ultrasound transducers face challenges in achieving sufficient intensity, spatial coherence, small divergence, and phase stability when used in air-coupled applications, particularly for characterizing fluids behind biological membranes, due to impedance mismatch and scattering issues.
Development of a capacitive micro-machined ultrasound transducer (cMUT) with a small base size, capable of operating through air, featuring an angular beam spread greater than 15 degrees and attenuation loss greater than 10 dB, and comprising multiple capacitive ultrasound elements with specific design features such as openings and hexagonal packing, to enhance performance.
The cMUT achieves improved signal-to-noise ratio, fractional bandwidth, and projected intensity, enabling effective characterization of fluids behind membranes with high precision and stability, suitable for applications like otitis media diagnosis.