Monitoring Data Processing of Distributed Optical Fiber Temperature Sensor Based on Multi-wavelet

2008 ◽  
Author(s):  
Guang-yong Xi ◽  
Jian-ping Yue ◽  
Kun-jun Zhang ◽  
Wen Ma
Keyword(s):  
Optical Fiber ◽  
Data Processing ◽  
Temperature Sensor ◽  
Monitoring Data ◽  
Monitoring Data Processing ◽  
Distributed Optical Fiber

Design of Mine Production Safety Monitoring System

2012 ◽  
Vol 503-504 ◽  
pp. 1330-1333
Author(s):  
Yan Kun Wang ◽  
Yun Xu Shi ◽  
Hong Mei Fan
Keyword(s):  
Data Processing ◽  
Monitoring System ◽  
Processing System ◽  
Safety Monitoring ◽  
Monitoring Data ◽  
Data Processing System ◽  
Network Systems ◽  
Safety Monitoring System ◽  
Monitoring Data Processing ◽  
And Control

The mine safety monitoring system is a set of sensor technology, electronics technology, power electronics technology, computer technology, wireless communication and network technology in one of China's leading multi-functional computer network systems, including underground, Inoue environment and equipment the detection of network systems and the Inoue monitoring data processing system. Environment and equipment for testing network system to achieve underground, of Inoue environment physical monitoring and control; monitoring data processing system is a comprehensive treatment of the collected data in order to achieve the sub-station set up and control equipment or detection sensors, through LAN detection information sharing, may constitute the enterprise information system.

Secondary Development of DiTeSt-STA202 Based on Delphi and Access

2010 ◽  
Vol 36 ◽  
pp. 103-108
Author(s):  
Kuan Fang He ◽  
Ping Yu Zhu ◽  
Xue Jun Li ◽  
D.M. Xiao
Keyword(s):  
Optical Fiber ◽  
Data Processing ◽  
Data Storage ◽  
Secondary Development ◽  
Typical Application ◽  
Sensing Technology ◽  
Optical Fiber Sensing ◽  
Analysis System ◽  
Distributed Optical Fiber ◽  
User Friendly

Distributed optical fiber sensing technology in the dam safety monitoring has been applied. The most typical application is the Swiss distributed optical fiber DiTeSt-STA202 analyzer. The instrument can simultaneously measure the distribution of thousands of points in a fiber strian and temperature, and it is suitable for measurement of objects up to several kilometers, but it’s functions limit to the data acquisition and the most primitive conversion of the strain and temperature without the deeper data processing functions, and the interface is less of user-friendly nature and poor adaptability. In this paper, The secondary development of DiTeSt-STA202 is done by Delphi and ADO technology based on analysis of the data storage types and formats. The data processing and analysis system is achieved in an efficient and accurate way.

A Calibration Method for Distributed Optical Fiber Temperature Sensor

2010 ◽  
Vol 44-47 ◽  
pp. 2774-2777
Author(s):  
Le Chen ◽  
Xiao Li Zhang ◽  
Yan Song
Keyword(s):  
Optical Fiber ◽  
Temperature Sensor ◽  
Environmental Temperature ◽  
Calibration Method ◽  
Measurement Precision ◽  
Temperature Calibration ◽  
Calibration Technique ◽  
Calibration Methods ◽  
Accurate Temperature ◽  
Distributed Optical Fiber

Based on the principle of the distributed optical fiber temperature sensor, the research with temperature calibration technique for temperature measurement precision of system was studied in this paper. Accurate temperature was gotten by standards of environmental temperature thermometer, with different temperature calibration methods to solve the accuracy problem of the distributed optical fiber temperature sensor.

Spatial Resolution Improvement of Distributed Optical Fiber Raman Temperature Sensor System by Using Amplitude Modification Algorithm

2013 ◽  
Vol 552 ◽  
pp. 393-397
Author(s):  
Zhong Xie Jin ◽  
Hai Peng Zhu
Keyword(s):  
Optical Fiber ◽  
Spatial Resolution ◽  
Temperature Sensor ◽  
High Spatial Resolution ◽  
Sensor System ◽  
Fiber Axis ◽  
Temperature Changes ◽  
Amplitude Coefficient ◽  
Resolution Improvement ◽  
Distributed Optical Fiber

Spatial resolution is an important parameter in distributed optical fiber Raman temperature sensor system (DOFRTS). In this paper, a 10 kilometers long DOFRTS with spatial resolution of about 6 meters is constructed. The spatial resolution is limited by electrical bandwidth of the photodetector circuit and the data acquisition part. The abrupt temperature changes along the fiber axis are treated as temporal pulse signals, and a linear amplitude coefficient modification algorithm is used to improve the spatial resolution. The experimental results show that the temperature amplitudes from 3 meters region to 6 meters can be modified accurately. Therefore, a DOFRTS of high spatial resolution but low system cost could be successfully constructed.

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