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Friction pressure induction cable and preparation method thereof

A friction pressure and cable technology, applied in the field of pressure cables, can solve problems such as weak signals, and achieve the effect of remarkable effect, high stability and compact structure

Active Publication Date: 2015-04-15
NEWNAGY TANGSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although pressure cables have such a wide range of applications, they have high impedance and weak signals, which need to be overcome by high input impedance circuits or charge amplifiers.

Method used

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  • Friction pressure induction cable and preparation method thereof
  • Friction pressure induction cable and preparation method thereof
  • Friction pressure induction cable and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0059] A method for preparing a frictional pressure sensing cable, comprising the steps of:

[0060] (1) Preparation of high molecular polymer solution: adding a curing agent to the high molecular polymer to obtain a high molecular polymer solution, wherein the mass ratio of the curing agent to the high molecular polymer is 1%-20%; wherein the curing The mass ratio of agent to high molecular polymer is preferably 10%. In this step, a curing agent is added to cure the high molecular polymer. The type of the curing agent can be obtained by conventional selection by those skilled in the art according to different high molecular polymers through common knowledge.

[0061] (2) The formation of the pouring cavity skeleton: install a blind hole sealing pipe fitting at one end of the central wire, install a through hole sealing pipe fitting at a distance L from the blind hole sealing pipe fitting, and set the blind hole sealing pipe fitting and the through hole sealing pipe fitting o...

Embodiment 1

[0078] Such as figure 1 The structure of the frictional pressure sensing cable shown is as follows: a central conductor (1), a polymer insulating layer (2), an electrode layer (3), and an insulating outer layer (4) are arranged coaxially in sequence from the inside to the outside.

[0079] Combine below figure 2 The preparation method of the friction pressure sensing cable is described, wherein one end of the friction pressure sensing cable is a blind hole plug (6), and the other end is a through hole plug (7).

[0080] Its preparation method comprises the following steps:

[0081] Take 500g of PDMS, add curing agent Dow Corning 184 at a ratio of 10:1, stir evenly, put it into a vacuum desiccator, and pump out the air dissolved in PDMS.

[0082] Select a copper center wire with a diameter of 5mm, install a blind hole plug at one end of the center wire, and install a through hole plug at a distance of 20cm. The horizontal distance between the through hole plug (6) and the blin...

Embodiment 2

[0084] Such as image 3 The frictional pressure sensing cable prepared as shown has a central conductor (1), a polymer insulating layer (2), an electrode layer (3), and an insulating outer layer (4) coaxially arranged in sequence from the inside to the outside. Layer (3) is a network structure.

[0085] Combine below Figure 4 Explain the preparation method of the friction pressure sensing cable, which is the structural diagram without removing the blind hole plug, the through hole plug and the auxiliary structure used to prepare the cavity, wherein one end of the friction pressure sensing cable is a blind hole plug (6) , the other end is a through-hole plug (7), and the flexible hollow tube (8) is outside the polymer insulating layer (2). It includes the following steps:

[0086] Take 500g of PDMS, add curing agent Dow Corning 184 at a ratio of 100:1, stir evenly, put it into a vacuum desiccator, and pump out the air dissolved in PDMS.

[0087] Choose a copper center wire...

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Abstract

The invention provides a friction pressure induction cable. The friction pressure induction cable comprises a center lead, a high-molecular polymer insulation layer, an electrode layer and an insulation external layer which are successively coaxially arranged in an attaching mode; the center lead and the high-molecular polymer insulation layer, and / or the high-molecular polymer insulation layer and the electrode layer generate signals respectively through friction; and the center lead and the electrode layer are output electrodes of the friction pressure induction cable. The invention also provides a preparation method of the friction pressure induction cable. The method comprises the following steps: (1), preparing a high-molecular polymer solution; (2), forming a cast cavity frame; (3), casting; (4), fixing; and (5), forming the insulation external layer, and obtaining the friction pressure induction cable. The friction pressure induction cable provided by the invention can still realize the same monitoring effect as that of a conventional pressure cable under the condition that a high-input impedance circuit or a charge amplifier is unnecessary.

Description

technical field [0001] The invention relates to a pressure cable, in particular to the technical field of frictional pressure sensing cables. Background technique [0002] With the development of science and technology, pressure cables have made great progress in the past few decades, and they are widely used in various industrial automatic control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemical , oil wells, electric power, ships, machine tools, pipelines, medical and many other industries. [0003] Generally, the output of ordinary pressure cables is an analog signal. An analog signal refers to a signal in which information parameters appear as continuous signals within a given range, or within a continuous time interval, the characteristic quantity representing information can be presented as any value at any instant. signal of. The commonly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/16H02N1/04
Inventor 徐传毅赵豪郝立星王竹郎佳星
Owner NEWNAGY TANGSHAN
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