YUAN, YING WEI,袁炎伟,袁炎偉,YAO, JEN CHIH,姚仁志,YANG, FU CHIEH,杨富杰,楊富傑,LAI, WEN PIN,赖文斌,賴文斌
申请号：
TW107133466
公开号：
TW201927248A
申请日:
2018.09.21
申请国别(地区):
TW
年份:
2019
代理人:
摘要：
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 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 in decibel.本發明提出一種測量聲學換能器之寬頻環路靈敏度SL(f)的方法與系統。用一脈衝信號當寬頻參考信號Vr(t)，並且在脈衝回波測量中獲得對應的寬頻回波信號Ve(t)。聲學換能器的標準化環路頻域響應被定義為Ve(t)的傅立葉轉換函數對Vr(t)的傅立葉轉換函數之比值。該聲學換能器的寬頻環路靈敏度SL(f)定義為以分貝為單位的的絕對值的平方。
