Calibration of miniature ultrasonic receivers using a planar scanning technique

摘要: This paper discusses a method currently used to calibrate miniature ultrasonic receivers in the 1‐ 10‐MHz frequency range. The compares power radiated by source transducer integrated intensity obtained scanning receiver across ultrasound field series of linear parallel lines. Sources error are presented and theoretical models experimental data analyzed estimate maximum uncertainty associated with this technique, as Bureau Radiological Health. Our calculations accuracy calibration constants determined be within +17%, −23% true value. With refinement technique an +14%, −13% should achievable.