Remote detection of natural gas clouds in open fields by IR imagery

1999 ◽  
Author(s):  
Philippe Bernascolle ◽  
Gerard Pelous ◽  
Laurence Grenier
2014 ◽  
Vol 496-500 ◽  
pp. 1327-1332
Author(s):  
Hai Fang Liu ◽  
Rui Wang ◽  
Shi Sheng Zhong

Abstract. High-accuracy beam pointing is one of the key problems in the airborne laser remote sensing of natural gas pipeline leak. In response to the domestic demand for the long-distance natural pipeline leak detection, this study proposes an airborne laser effector for autonomous pipeline alignment based on CH4/H2S detector. Mainly structured on 2DOF serial mechanism, the device under discussion is designed with a control system operated on IPC and PMAC, followed by the design of hierarchical modular software. Once completed, the device is placed for indoors pointing experiments as well as simulated airborne test. The results show the effector can conduct full-angle scan of the pod area, achieve a static measuring precision of less than 0.4m as an alignment point is about 100 meters from the laser and detect leakage in dynamic simulated experiment, which meets with the design requirements. In other words, both the design and control algorithm are proved to be feasible. The effector holds an important engineering value for solving the problem of remote detection of the natural gas pipeline leakage.


2007 ◽  
Vol 78 (12) ◽  
pp. 125105
Author(s):  
M. P. Mathur ◽  
J. L. Spenik ◽  
C. M. Condon ◽  
E. R. Monazam ◽  
W. L. Fincham

2005 ◽  
Author(s):  
Michael B. Frish ◽  
B. David Green ◽  
Richard T. Wainner ◽  
Francesca Scire-Scappuzzo ◽  
Paul Cataldi ◽  
...  

1886 ◽  
Vol 21 (545supp) ◽  
pp. 8698-8699
Author(s):  
S. A. Ford
Keyword(s):  

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