Stray current tester and stray current analysis method

A technology of stray current and analysis method, applied in the direction of measuring current/voltage, reasoning method, analyzing materials, etc., can solve the problems of cathodic protection system interference, lack of intuition, and inability to display graphically, to improve efficiency and accuracy degree of effect
CN101477146AInactive Publication Date: 2009-07-08UNIV OF ELECTRONICS SCI & TECH OF CHINA
0 Cites 19 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2009-07-08
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to buried pipeline protection technology, in particular to stray current detection and analysis technology of buried pipelines. The invention discloses a stray current tester and a stray current analysis method, which can reflect the distribution situation of stray current on the ground more comprehensively and intuitively, and provide a scientific evidence for the protection of the buried pipelines. The stray current tester comprises a data acquisition device and at least two detection channels, wherein each detection channel can measure a path of voltage; the data acquisition device is used for recording each path of voltage and drawing a graph according to recorded voltage data to display; and the voltage comprises a direct current component and an alternating current component. The stray current analysis method utilizes a fuzzy expert system of a computer to comprehensively analyze acquired various data, and an obtained result is more accurate and comprehensive.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to buried pipeline protection technology, in particular to buried pipeline stray current detection and analysis technology. Background technique

[0002] Buried pipelines include various oil pipelines, gas pipelines and various water supply / drainage pipelines, most of which are metal pipelines. In order to improve the corrosion resistance of metal pipes and prolong their service life, the outer layer of metal pipes generally has an anti-corrosion coating. Moreover, in order to further improve the anti-corrosion ability, cathodic protection measures are also adopted. Generally, a voltage is applied to the metal pipeline so that the metal pipeline presents a negative potential (about -1.25 to -0.85V) to the ground. The specific value depends on the environment of the pipeline, the pipeline coating Layer type and quality and other factors). With the application and development of electric power technology, the electromagnetic envir...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More