中国石油大学学报（自然科学版）Issue(3)：57-61,5.DOI:10.3969/j.issn.1673-5005.2015.03.007
种免刻度的高温高压液体声速透射测量方法及装置
A measurement method and device with no need for calibration for acoustic velocity of liquid under the condition of high temperature and pressure
摘要
Abstract
A fixed distance between transmitting and receiving senor is widely adopted in measurement methods and devices for acoustic velocity of liquid under high temperature and high pressure conditions. The frequent calibration of the distance and delay time is necessary and complex thus makes it incontinent in the field measurement. A novel measurement method and device are developed based on differential velocity and isobaricchamber technology, in which the pressure and tempera-ture keep constant while the distance between transmitting and receiving senor can vary. The acoustic velocity of liquid can be measured by the average ratio of distance increment and travel time increment or through graphical method without the cal-ibration of distance and delay time. The results demonstrate that the device works well:the relative deviation between the ve-locities of distilled water and NaCl brine is less than 0. 5% compared with the published data.关键词
液体声速/刻度/“变”间距/恒压舱技术/高温高压Key words
liquid acoustic velocity/calibration/alterable distance/isobaricchamber technology/high temperature and pres-sure分类
数理科学引用本文复制引用
韩学辉,李峰弼..种免刻度的高温高压液体声速透射测量方法及装置[J].中国石油大学学报（自然科学版）,2015,(3):57-61,5.基金项目
国家油气专项(2011ZX05009-003) （2011ZX05009-003）
国家留学基金管理委员会资助课题(201306455002) （201306455002）
