摘要
针对温度和气体含量对超声波测压的影响问题,通过理论分析和实验,研究了温度和含气量对超声测压影响的原因以及影响的大小,并建立了超声测压模型。结果显示温度会影响水的密度和体积模量,从而引起声波在水中传输速度的变化,进而对超声波测压产生很大的影响;少量气体会引起水体积模量和密度的大幅度降低,从而导致声速大幅度降低。温度对声速的影响随着气体含量的增加而逐渐减小,随着气体含量的增加,温度变化引起的声速的变化量逐渐减少,对超声测压的影响也逐渐减小。
Aiming at the influence of temperature and gas content on ultrasonic pressure measurement,through theoretical analysis and experiment,the causes and magnitude of the influence of temperature and gas content on ultrasonic pressure measure⁃ment are studied,and the ultrasonic pressure measurement model is established.The results show that temperature will affect the density and bulk modulus of water,resulting in the change of sound wave transmission velocity in water,which will have a great im⁃pact on ultrasonic pressure measurement.A small amount of gas will greatly reduce the bulk modulus and density of water,resulting in a significant decrease in sound velocity.The influence of temperature on sound velocity gradually decreases with the increase of gas content.With the increase of gas content,the change of sound velocity caused by temperature change gradually decreases,and the influence on ultrasonic pressure measurement also gradually decreases.
作者
张育卿
明廷锋
于潇
ZHANG Yuqing;MING Tingfeng;YU Xiao(College of Power Engineering,Naval University of Engineering,Wuhan 430033)
出处
《舰船电子工程》
2022年第5期78-82,共5页
Ship Electronic Engineering
基金
技术基础科研项目(编号:201HJ22015)资助。
关键词
声速
气体含量
温度
压力
密度
水
sound speed
gas content
temperature
pressure
density
water
作者简介
张育卿,男,硕士研究生,研究方向:超声波测压。
