Paper Title:
Features Extraction of CO2 Signal with Operational Conditions Adaptability
  Abstract

A method for indirect online over-temperature detection of isolators in high voltage switchgear is proposed,which is based on Na Superionic Conductor CO2 sensor. The over-temperature detecting principle is put forward and an over-temperature detecting system based on the method is introduced. The reliability of over-temperature detection depends on signal noise ratio (SNR), but the sensor and signal processing determine the SNR of CO2 signal. Based on quantitative analysis, it is concluded that Na Superionic Conductor CO2 sensor has higher SNR. By signal processing, the necessity of moving average filter for SNR is demonstrated. A temperature compensation circuit is adopted to eliminate the influence of temperature. In view of the characteristics of rude signal, an appropriate method of real-time digital filtering is used to improve the Signal-to-Noise Ratio. The different features of the signal under over-temperature condition have been analyzed and compared to those under normal conditions. The paper introduces a reliable algorithm for identifying over-temperature detection based on sequential section differences. Experiments prove that the method is feasible.

  Info
Periodical
Chapter
Chapter 2: Fundamental Materials Science
Edited by
Yongping Zhang, Linhua Zhou and Elwin Mao
Pages
131-135
DOI
10.4028/www.scientific.net/AMM.109.131
Citation
J. Sun, W. G. Lin, "Features Extraction of CO2 Signal with Operational Conditions Adaptability", Applied Mechanics and Materials, Vol. 109, pp. 131-135, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hai Long Fu, Long Qing Zou, Guang Dai, Xu Chi
Abstract:In this paper, the main problem is how to eliminate vibration came from the compressor base in petrochemical industry. The absolute...
2478
Authors: Yu Wang, Xing Lin Chen, Guang Min Li
Abstract:Contrary to the general connection style, the vibration characteristics of the ship foundation vibration is researched under the arrangement...
2202
Authors: Qian Lin Peng, Yao Gang Li, Fu Dong Ma
Chapter 3: Vibration Control and Condition Monitoring
Abstract:Analysis of the study based on the Working principle of machine isolators-flexible foundation system which combines with multiple exciters...
664
Authors: Guo He Jiang, Gang Wu
Chapter 15: Remanufacturing Engineering
Abstract:Based on the three-dimensional elastic floating raft isolation system model, this paper using the finite element method to calculate...
2659