sound pulse

Results: We measured the pulse sound pressure from water broken down and bubble collapse near F 1 and F 2 respectively and made the simulated lithoclastic experiments for a small plaster ball.

结果：分别在F1和F2点测得光击穿及空化气泡闭合与反跳时产生的声压脉冲信号；用石膏小球进行了碎石演示性实验，取得初步结果。

The diffracted field of a sound pulse source in a moving stratified medium

运动分层介质中脉冲点声源的衍射场

Investigation on the sound pulse transient suppression method used in the underwater acoustic measurement

水声测量用声脉冲瞬态抑制方法的研究

Results: We measured the pulse sound pressure from water broken down and bubble collapse near F 1 and F 2 respectively and made the simulated lithoclastic experiments for a small plaster ball.

结果：分别在F1和F2点测得光击穿及空化气泡闭合与反跳时产生的声压脉冲信号；用石膏小球进行了碎石演示性实验，取得初步结果。

Common methods classify animals by their difference in sound pulse rate, wave form structure in time domain and main peak frequency in frequency domain et cetera.

传统的鸣声分类时一般依据不同种动物鸣声信号在时域波形上的波形结构和脉冲率等的不同，功率谱上相对幅度最大所对应的频率即主频的不同来进行分类。

The Automatic Measurement System of Sound Level Meter Based on PULSE System

基于PULSE系统的声级计自动检定测试系统

Method The hardware design uses a P-ⅱ/ 233 multimedia microcomputer system, multi-channel A/ D converter, ECG electrodes, heart sound transducer, pulse transducer, and amplifiers and filters consisted with operation amplifiers.

【方法】本系统的硬件设计采用奔腾Ⅱ/233多媒体微机系统，多路模/数转换器和心电电极、心音传感器、脉搏波传感器及由运算放大器等构成相关的放大器及滤波器。

By using complex amplitude to describe sound field distributing, acoustic lens pulse response is deduced in theory, and function imaging of biological tissue is obtained.

以声场复振幅来描述声场分布，根据基尔霍夫衍射理论，从理论上推导了声透镜的脉冲响应，并通过实验得到了生物组织的功能成像。

Sound pulse specular reflection echo and their curvature effect of boundary surface

脉冲镜反射回波及其表面曲率效应

Numerical computation of sound pulse reflection from fluid plannar layer systems

声脉冲在液态平面层系上反射的数值计算

The evaluation of the injury of pulse intense sound to the hair cell in ampullar crest of guinea pig by trypan blue staining

台盼蓝染色法观察脉冲口噪声对豚鼠壶腹嵴毛细胞活力的损伤

The relationships between the ultrasonic field parameters and the rate of scale control are studied, of which the frequency, sound intensity, irradiation times and pulse width are the major factors influencing the scale rate, while the intermittent rate is the next factor.

实验研究了超声场参数与防垢率之间的关系，其中频率、声强、辐照时间和脉冲宽度是影响防垢率的主要因素，而间歇比为次要因素。

This paper develops a theoretical formula for calculating interfacial noise of vibrating point from its vibratory quantity with pulse semisphere sound source as basic physical model.

本文以脉动半球声源为基本物理模型，推导了由振动量计算振动点的界面噪声的理论公式。