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Helical parallel transmission line type deformation line distribution measurement sensor and measurement method

A measurement sensor and helix parallel technology, applied in the direction of electric/magnetic solid deformation measurement, electromagnetic measurement device, etc., can solve the problems of a single measurement cable unable to identify the deformation position, the deformation amount is small, and the price is expensive.

Active Publication Date: 2015-09-30
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the former has the problems of high price and small deformation, and the latter has the problem of being unable to identify the deformation position with a single measuring cable.

Method used

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  • Helical parallel transmission line type deformation line distribution measurement sensor and measurement method
  • Helical parallel transmission line type deformation line distribution measurement sensor and measurement method
  • Helical parallel transmission line type deformation line distribution measurement sensor and measurement method

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with drawings and embodiments.

[0022] Such as figure 1 As shown, a single copper wire inner layer coil 2 is tightly wound on the outer cylindrical surface of a solid circular cross-section elastic rubber-plastic wire 1, and then a single copper wire inner layer coil 2 is wrapped with a solid circle The middle elastic rubber and plastic layer 1' of the same material as the cross-sectional elastic rubber and plastic wire 1 is wound on the middle elastic rubber and plastic layer 1' with a single copper wire with the same winding direction and the same wire spacing as the single copper wire inner layer coil 2 The outer layer coil 3 is wrapped with an outer elastic rubber-plastic layer 1″ of the same material as the solid round section elastic rubber-plastic wire 1 on the single copper wire outer layer coil 3, and the single copper wire inner layer coil 2 is connected with the single copper wire inner lay...

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Abstract

The invention discloses a spiral parallel transmission line type line distribution measurement sensor for deformation and a measuring method. A single or a plurality of copper wire inner layer coils are densely wound on a cylindrical surface of an elastic rubber plastic line with a circular section; an intermediate elastic rubber plastic layer is wrapped outside the copper wire inner layer coils; a single or a plurality of copper wire outer layer coils, which have the same winding direction and the same interval between wires as the inner layer coils, are wound on the intermediate elastic rubber plastic layer; an outer elastic rubber plastic layer is wrapped on the copper wire outer layer coils; and the inner layer coils and the outer layer coils form a spiral parallel transmission line sensor. When a spiral parallel transmission line is not deformed, the characteristic impedance of the parallel line formed by the inner layer coils and the outer layer coils is in a fixed state; when a certain position of the spiral parallel transmission line is deformed, the characteristic impedance on a deformed part varies; and the magnitude of the deformation can be measured by applying a pulse signal or a sine signal to a port of the spiral parallel transmission line.

Description

technical field [0001] The invention relates to a line distribution measurement of deformation, in particular to a spiral parallel transmission line type sensor and a measurement method for line distribution measurement of object deformation. Background technique [0002] At present, only BOTDR (Brillouin Optical TimeDomain Reflectometry Brillouin Scattered Light Time Domain Reflectometry Technology) and Chinese invention patent "distributed measurement cable and measurement method for outward convexity change of collapsing body" can be used to measure the line distribution of body deformation. The method proposed in (ZL200610052819.8). But the former has the problems of high price and small amount of deformation, and the latter has the problem of being unable to identify the deformation position with a single measurement cable. Contents of the invention [0003] The object of the present invention is to provide a helical parallel transmission line type measurement sensor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/16
Inventor 李青童仁园李明李雄施阁
Owner CHINA JILIANG UNIV
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