US 10,502,717 B2 · Method and system for measuring a wideband loop sensitivity for an acoustic transducer

Abstract

A method and system is disclosed for measuring a wideband loop sensitivity SL(f) for an acoustic transducer in an acoustic probe. A pulse signal is employed as a wideband reference signal Vr(t); and, in a pulse-echo measurement a corresponding wideband echo signal Ve(t) is obtained. A normalized loop frequency response {circumflex over (X)}(f) for the acoustic transducer is defined as a ratio of a Fourier Transform of the Ve(t) to a Fourier Transform of the Vr(t). A wideband loop sensitivity SL(f) for the acoustic transducer is defined as an absolute square of the {circumflex over (X)}(f) in decibel.

Claims18

Dependent claims

A system for measuring a wideband loop sensitivity for an acoustic transducer among a plurality of acoustic transducers in an acoustic probe, the system comprising:

a pulse generator;
and
a control unit electrically coupled to the pulse generator,
wherein
the pulse generator is configured to be selectively electrically coupled to a predetermined load for generating, by the pulse generator, a first pulse to create a wideband signal as a reference signal,
the control unit includes a memory storing therein a program or firmware for causing the control unit to
obtain a wideband reference signal Vr(t), and
obtain a function {circumflex over (V)}r(f) that is a Fourier Transform of the wideband reference signal Vr(t), and
the system further comprises the acoustic probe, and the pulse generator is electrically coupled to the acoustic probe when the predetermined load is not electrically coupled to the pulse generator.

6 more elements

Dependencies are inferred from the claim text.

Method and system for measuring a wideband loop sensitivity for an acoustic transducer

Life of this patent

Method and system for measuring a wideband loop sensitivity for an acoustic transducer

Life of this patent

Abstract

Claims18