The transfer function method is applied to investigate on characteristic impedance and acoustic propagation constant of the regenerator in the acoustic-driven thermoacoustic apparatus. 针对本实验室一台声驱动热声系统,采用传递函数法研究声驱动系统中回热器的特征阻抗和传播常数。
Discussion of the stability of the paticle in acoustic levitation apparatus by numerical simulation methods 通过数值模拟方法讨论声悬浮装置中颗粒稳定性
The stability of the particle in Acoustic levitation apparatus is discussed according to the results of the numerical simulation. 通过数值模拟的方法讨论了声悬浮装置中几种对颗粒稳定性有影响的因素。
Development of vertical storage tank acoustic detection apparatus 常压立式储罐声学检测仪的研制
This paper describes the experimental study on the relation between acoustic parameters ( wave velocities, frequency spectra) and mechanical parameters of various rocks using the measurement system consisting of SYC-EYC digital acoustic wave processing apparatus and the 82-OlC Shear-wave Ultrasonic Transducers. 本文介绍了用SYCEYC声波数据处理系统和8201C型岩石超声横波换能器组成的测试系统,以及对各种岩石的超声波声学参数(波速及频谱)与力学参数的相关关系所进行的试验研究。
The development of the acoustic method in fishery resources survey at home and abroad, the basic principles, apparatus, and the main working process were described in this paper. 介绍了渔业资源声学评估的国内外研究现状,基本工作原理,声学仪器,声学评估的主要工作过程。
The acoustic sonde of the multi-frequency array acoustic logging apparatus can transmit three acoustic signals in the borehole, whose frequencies are 10,20 and 40 kHz. There are two sets of receiving arrays, each of which has eight receiving transducers. 多种频率阵列声波测井仪器的声系能在井下发射频率为10、204、0kHz等3种声波信号,用2组各有8个接收探头组成的接收阵列。
Using the cuttings as the samples to measure the acoustic velocity and micro hardness, measuring apparatus and corresponding software are developed. 以岩屑为测试对象,研究其声波波速和微硬度测试方法,开发了测试仪器及配套软件,对比分析了大、小尺寸岩样的测试结果。
Multi-frequency array acoustic logging apparatus with fiber optic cable transmission system, which transmits signal at a speed of 10 Mbit/ s, and it's practical logging case are introduced in this paper. 介绍了光纤电缆传输系统传输速率为10Mbit/s的多频率阵列声波测井仪及实际测井案例。
And the display and printing system is mainly composed of indicator, printer and acoustic warning apparatus. 显示打印系统则主要由显示器、打印机及声报警器部分组成。
The effect of acoustic levitation on ultrasonic reducing friction A Standard Apparatus for Underwater Sound Pressure in High-frequency Range 声悬浮对超声减摩的影响高频水声声压标准装置
Piezoelectric transducer is a key component of acoustic logging apparatus for transmitting and receiving acoustic signals. 压电换能器是声波测井仪器的关键部件,用于发射和接受声波信号。
A technology has been developed to detect the low-frequency underwater acoustic signal by laser and a detection apparatus is developed in this paper. 本文提出了一种低频水下声信号的激光探测技术,并建立了实验装置。