scholarly journals Study on Gas Leakage Detection and Pressure Difference Identification by Asymmetric Differential Pressure Method

2021 ◽  
Author(s):  
Yan Shi ◽  
Jia-Qi Chang ◽  
Yi-Xuan Wang ◽  
Xue-Lin Zhao ◽  
Qing-Zhen Zhang ◽  
...  
Keyword(s):  
Pressure Difference ◽  
Detection Efficiency ◽  
Differential Pressure ◽  
Leakage Detection ◽  
Automatic Equipment ◽  
Gas Leakage ◽  
Pressure Method ◽  
The Common ◽  
Air Tightness ◽  
Temperature Recovery

Abstract As the most common actuator in the pneumatic system, the excellent air tightness of the tank is the key to meet the use requirements of automatic equipment. This paper introduces the common air tightness detection contents, and models the inflation and detection process of the differential pressure method. In order to break away from the restriction on the detection efficiency caused by the asynchronous temperature recovery of the two chambers in the asymmetric differential pressure method, the differential calculation of directly detected pressure difference is replaced by the pressure difference substitute formula. The influence of various parameters in the fitting formula is analyzed by simulation, and the effectiveness of this method is verified by experiments.

A method for shock train leading edge detection based on differential pressure

2016 ◽  
Vol 231 (1) ◽  
pp. 61-71 ◽  
Author(s):  
B Xiong ◽  
Z-G Wang ◽  
X-Q Fan ◽  
Y Wang
Keyword(s):  
Standard Deviation ◽  
Edge Detection ◽  
Detection Method ◽  
Pressure Ratio ◽  
Leading Edge ◽  
Differential Pressure ◽  
Shock Train ◽  
Pressure Method ◽  
Operational Application ◽  
Deviation Method

In order to make the shock train leading edge detection method more possible for operational application, a new detection method based on differential pressure signals is introduced in this paper. Firstly, three previous detection methods, including the pressure ratio method, the pressure increase method, and the standard deviation method, have been examined whether they are also applicable for shock train moving at different speeds. Accordingly, three experimental cases of back-pressure changing at different rates were conducted in this paper. The results show that the pressure ratio and the pressure increase method both have acceptable detection accuracy for shock train moving rapidly and slowly, and the standard deviation method is not applicable for rapid shock train movement due to its running time window. Considering the operational application, the differential pressure method is raised and tested in this paper. This detection method has sufficient temporal resolution for rapidly and slowly shock train moving, and can make a real-time detection. In the end, the improvements brought by the differential pressure method have been discussed.

MODELLING AND FABRICATON OF AERIAL SURVEILLANCE AND MULTIPURPOSE GAS LEAKAGE DETECTION DRONE

IARJSET ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 649-651
Author(s):  
Gokulnath K. ◽  
Madhavan M. ◽  
Narendhiran N.
Keyword(s):  
Leakage Detection ◽  
Aerial Surveillance ◽  
Gas Leakage

scholarly journals A microcontroller based gas leakage detection and evacuation system

2018 ◽  
Vol 413 ◽  
pp. 012008 ◽  
Author(s):  
Aderibigbe I. Adekitan ◽  
Victor O. Matthews ◽  
Olayinka Olasunkanmi
Keyword(s):  
Leakage Detection ◽  
Gas Leakage ◽  
Evacuation System

FPGA-GSM based gas leakage detection system

2016 ◽  
Author(s):  
T. Arpitha ◽  
Divya Kiran ◽  
V.S.N. Sitaram Gupta ◽  
Punithavathi Duraiswamy
Keyword(s):  
Detection System ◽  
Leakage Detection ◽  
Gas Leakage

Research and Evaluation of Water-Based Pipe Freeing Agent SJK-1

2013 ◽  
Vol 295-298 ◽  
pp. 360-363
Author(s):  
Yong Sheng Chen ◽  
Yong Jiang Li ◽  
Ling Li ◽  
Meng Zhan Qiao ◽  
Shui Liang He ◽  
...  
Keyword(s):  
Differential Pressure ◽  
Drilling Process ◽  
Water Based ◽  
The Common

Sticking pipe has been being a common problem in drilling process. There are several techniques to solve sticking pipe which caused by differential pressure. But all of the techniques are inefficiency and the common oil-based pipe freeing agent is unsafe and pollution. So the water-based pipe freeing agent, SJK-1, has been developed. This kind of pipe freeing agent is cheaper, safer and more effective.

scholarly journals New Gas Leakage Detection System using Internet of Things

2020 ◽  
Vol 7 (7) ◽  
pp. 69-76
Author(s):  
Meteb Altaf ◽  
Alaa Menshawi ◽  
Ruba Al-Skate ◽  
Taghreed Al-Musharraf ◽  
Wejdan Al-Sakaker
Keyword(s):  
Internet Of Things ◽  
Detection System ◽  
Leakage Detection ◽  
Gas Leakage

scholarly journals Archimedean spiral push-broom differential thermal imaging for gas leakage detection

2019 ◽  
Vol 27 (6) ◽  
pp. 9099
Author(s):  
Xiuli Luo ◽  
Junhui Ma ◽  
Dongqi Chen ◽  
Lingxue Wang ◽  
Yi Cai ◽  
...  
Keyword(s):  
Thermal Imaging ◽  
Leakage Detection ◽  
Archimedean Spiral ◽  
Gas Leakage
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