Pressure Signal Enhancement of Slowly Increasing Leaks Using Digital Compensator Based on Acoustic Sensor

Sensors

卷:19

Xianbo Qiu¹  Weiguo Lin¹  Fang Wang¹  Zheng Liu² 

[1] College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China;

[2] Faculty of Applied Science, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada;

关键词: leak detection;    pressure signal;    digital compensator;    slowly increasing leak;   

DOI  :  10.3390/s19194317

来源: DOAJ

【 摘 要 】

Pipeline leak detection technologies are critical for the safety protection of pipeline transportation. However, they are insensitive to slowly increasing leaks. Therefore, this study proposes an enhancement method for slowly increasing leak signals. By analyzing the characteristics of pressure signals of slowly increasing leaks, a digital compensator is developed to overcome the disadvantages of pressure signals and enhance the pressure signals. According to the frequency response analysis of the digital compensator, the enhancement principle is the parameter adjustment of the digital compensator. Therefore, this paper further proposes an adaptive adjustment method of the parameter to enhance different degrees of leak signals online in real-time, and the proposed method is evaluated using two field pipelines. The experimental results demonstrate that this method is suitable not only for enhancing slowly increasing leaks but also for enhancing abrupt leaks.

【 授权许可】

Unknown