Title:
【発明の名称】温度分布および/または温度異常を分散形光ファイバー温度検知に基づいて永久的かつ自動的に監視するための方法および装置、およびその方法の用途
Document Type and Number:
Japanese Patent JP2002515597
Kind Code:
A
Abstract:
The invention relates to a method and a device for monitoring, also permanently and automatically, temperature distributions and/or temperature anomalies on the basis of distributed fiber-optic temperature sensing as well as to the use of such methods. According to the invention the detection of local temperature extremes, i.e. minimums or maximums, in view of the evaluation is performed by an evaluation without numeric derivations. With the device for monitoring ascending and supply pipes surrounded by an annular space it is possible to check the safety of pressurized installations, particularly in the field of low-pressure gas storage, in a cost-efficient manner. Moreover, the position of an underground watershed or respectively the direction and flow rate of the flows in flooded drift sections can be determined on the basis of fiber-optic temperature measurements. The defined arrangement of preferably vertical sensor cables inserted into the bores also makes it possible to examine the tightness of base sole and lateral walls in building excavations. Finally, the virtually horizontal, meander-shaped arrangement of fiber-optic cables situated in several levels makes it possible to evaluate and control the efficacy and homogeneity of leaching processes in leaching dumps and fills.
Inventors:
Groswig, Stefan
Kuhn, Katrin
Kuhn, Katrin
Application Number:
JP2000549926A
Publication Date:
May 28, 2002
Filing Date:
May 07, 1999
Export Citation:
Assignee:
Gezo Gezel Shaft Fur Zenzolik, Geotechni Schen Umwert Schutzund Matematische Modeli Runk Mbeha Jena
International Classes:
F17D5/06; G01M3/00; G01K11/12; G01M3/02; (IPC1-7): G01M3/02; G01K11/12
Attorney, Agent or Firm:
Tsuyoshi Shigeno