scholarly journals Processing of Hydraulic Pressure Sensor Signal Based on Wavelet Analysis

2012 ◽  
Vol 24 ◽  
pp. 2143-2150 ◽  
Author(s):  
Xin Shi ◽  
Xiang-mo Zhao ◽  
Fei Hui ◽  
Lan Yang
Keyword(s):  
Wavelet Analysis ◽  
Pressure Sensor ◽  
Hydraulic Pressure ◽  
Sensor Signal

Fiber Bragg grating–based hydraulic pressure sensor with enhanced resolution

2015 ◽  
Vol 54 (9) ◽  
pp. 096104 ◽  
Author(s):  
Vengal Rao Pachava ◽  
Srimannarayana Kamineni ◽  
Sai Shankar Madhuvarasu ◽  
Venkata Reddy Mamidi
Keyword(s):  
Fiber Bragg Grating ◽  
Pressure Sensor ◽  
Bragg Grating ◽  
Hydraulic Pressure ◽  
Enhanced Resolution

scholarly journals Evaluation of Printed P(VDF-TrFE) Pressure Sensor Signal Quality in Arterial Pulse Wave Measurement

2019 ◽  
Vol 19 (23) ◽  
pp. 11072-11080 ◽  
Author(s):  
Mika-Matti Laurila ◽  
Mikko Peltokangas ◽  
Karem Lozano Montero ◽  
Tuomo Siponkoski ◽  
Jari Juuti ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Pulse Wave ◽  
Signal Quality ◽  
Sensor Signal ◽  
Arterial Pulse ◽  
Arterial Pulse Wave ◽  
Wave Measurement

Analysis of Coupled Electro-Thermal-Mechanical of Micro Gas Pressure Sensor Based on Micro-Hotplate Technology

2009 ◽  
Vol 60-61 ◽  
pp. 119-124
Author(s):  
Ren Cheng Jin ◽  
Wu Jin Zhang ◽  
Zhe Nan Tang ◽  
Jia Qi Wang ◽  
Ming Liang Shao
Keyword(s):  
Constant Temperature ◽  
Pressure Sensor ◽  
Thermal Deformation ◽  
Thickness Distribution ◽  
Mechanical Analysis ◽  
Gas Pressure ◽  
Constant Current ◽  
Sensor Signal ◽  
Signal Output ◽  
Thermal Mechanical Analysis

The effect of micro-hotplate (MHP) thermal deformation on the signal output of the MHP-based micro gas pressure sensor is investigated. Combining electro-thermal theoretical analysis and thermal-mechanical finite element modeling, different electro-thermal-mechanical analysis models of the sensors are built and solved at constant current condition and constant temperature condition respectively. The calculated results show that the MHP thermal deformation has little effect on the sensor signal output over the entire pressure range at constant current condition, I=0.7mA. While at constant temperature condition, Ts=400K, thermal deformation has little effect on the sensor signal output at low gas pressure, but at high pressure the effect are great. Moreover, according to the thermal-mechanical analysis, we find that optimizing thickness distribution of thin films in the MHP suspended structure can reduce thermal deformation effectively at higher temperature when the lateral dimension is same, which presents a practicable method to improve the sensor stability.

Hydraulic Pressure Sensor based on an Asymmetric Double-core Fiber

2018 ◽  
Author(s):  
Yan Zhou ◽  
Yadong Deng ◽  
Lijuan She ◽  
Daru Chen ◽  
Zhangwei Yu ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Hydraulic Pressure ◽  
Core Fiber

Leak Detection Method for Long Pipeline Based on Dynamic Pressure and Wavelet Analysis

2010 ◽  
Author(s):  
Bin Xu ◽  
Likun Wang ◽  
Hongchao Wang ◽  
Min Xiong ◽  
Dongliang Yu ◽  
...  
Keyword(s):  
Wavelet Analysis ◽  
Pressure Sensor ◽  
Static Pressure ◽  
Detection Method ◽  
Detection System ◽  
Dynamic Pressure ◽  
Field Tests ◽  
Leak Detection ◽  
Analysis Method ◽  
System A

Architecture of the leak detection system is presented, and the leak detection method based on dynamic pressure and wavelet analysis is studied in this paper. The feature of dynamic pressure which is generated by the leakage of pipeline is analyzed. The dynamic pressure signal of pipeline internal pressure is acquired by dynamic pressure sensor when leakage occurs, and the signal is analyzed by wavelet analysis method to detect the singularity, and the singularity is used to recognize and locate the leak. From the comparison of analysis results between dynamic pressure and static pressure, in order to improve the sensitivity and stability of the leak detection system, a polling rule between dynamic and static pressure is implemented. Field tests of the leak detection system are presented and analyzed. The results of the field tests demonstrate that the leak detection method based on dynamic pressure and wavelet analysis can detect pipeline leak rapidly and locate the leak precisely. This leak detection system has been applied in 5000 km pipeline or so.

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