| 摘要 |
<p>A direct contact scanner (101) uses a fiber acoustic waveguide (107, 141) to convey ultrasound from an ultrasound transducer (117) to a direct contact area (122). The waveguide extends from a main body (105) of the scanner into an oblong nose (109), and terminates in a deflector (149). To minimize thickness of the nose, the waveguide and deflector are rotated about an ultrasound transmission axis (119) of the waveguide, enabling the scanner to be used in a variety of situations where quarters are cramped. A coupling fluid (111) conveys ultrasound between the deflector (149) and a radome (113), which directly contacts the object (103) to be scanned. Using the waveguide, an ultrasound transducer and supporting electronics (118) may be distanced from the direct contact area (122) and separated from the fluid (111), thereby insulating the fluid from possible electronic leakage currents and heat.</p> |
