Resistance-type concrete abrasion sensor and measurement method thereof

A concrete and resistive technology, applied in the field of sensors, can solve problems such as insufficient measurement accuracy, insufficient measurement range, and limited number of cable core wires, and achieve the effect of simple working principle, simple measurement method, and reduced monitoring costs

Inactive Publication Date: 2011-08-03
POWERCHINA ZHONGNAN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are 5 core wires in the body of this sensor, and the on-off signals of the 5 core wires are used to detect respectively, so it is limited by the number of cable core wires
In practical engineerin

Method used

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  • Resistance-type concrete abrasion sensor and measurement method thereof
  • Resistance-type concrete abrasion sensor and measurement method thereof
  • Resistance-type concrete abrasion sensor and measurement method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Implementation Plan 1:

[0039] Such as Figure 4 As shown, the resistive concrete abrasion sensor includes:

[0040] (1) A sensor body A made of insulating material, and the abrasion resistance of body A is close to but not higher than the abrasion resistance of concrete materials;

[0041] (2) Wire E and wire F are perpendicular to the end surface of the sensor body;

[0042] (3) Eleven leads parallel to the end face of the sensor body, the spacing between each lead is 10mm, and the first lead at the end face of the sensor body is directly connected;

[0043] (4) According to the lead sequence, the fixed resistance values ​​in series in the lead are: R0=0Ω, R1=100Ω, R2=300Ω, R3=510Ω, R4=510Ω, R5=1kΩ, R6=1kΩ, R7=1kΩ, R8 =1.5kΩ, R9=1.5kΩ, R10=1.5kΩ.

[0044] The specific steps of the resistive concrete abrasion sensor measurement method are:

[0045] (1) First, calculate the parallel resistance value Rbi and the resistance change according to the fixed resistance value in the sens...

Example Embodiment

[0052] Implementation plan 2:

[0053] Such as Figure 5 As shown, the working principle of Embodiment 2 is the same as that of Embodiment 1, including:

[0054] (1) A sensor body A made of insulating material, and the abrasion resistance of body A is close to but not higher than the abrasion resistance of concrete materials;

[0055] (2) Wire D, wire E, and wire F, which are perpendicular to the end surface of the sensor body;

[0056] (3) Two sets of leads, each with eleven leads, respectively connect lead E and lead F and lead E and lead D, and lead parallel to the end surface of the sensor body;

[0057] (4) The first lead of wire E and wire F is at the end face of the sensor body, and the first lead of wire E and wire D is 5mm away from the end face of the sensor body; in the same lead group, the spacing between the leads is 10mm;

[0058] (5) According to the lead sequence, the fixed resistance values ​​in series in the lead are: R0=0Ω, R1=100Ω, R2=300Ω, R3=510Ω, R4=510Ω, R5=1kΩ, R...

Example Embodiment

[0068] Implementation plan 3:

[0069] Such as Image 6 As shown, Embodiment 3 is basically the same as Embodiment 1. This solution adds three check lines to the sensor body A; the distances between the three check lines and the end face of the sensor body are 20mm, 50mm, and 100mm, respectively, which are equivalent to the concrete abrasion damage standard (Mild, moderate, severe) corresponding. The check line reviews the abrasion depth of the concrete and also serves as a backup.

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PUM

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Abstract

The invention relates to a sensor, in particular relating to a sensor for measuring the concrete abrasion depth. Three wires and two groups of leads are arranged in a sensor body; the leads of each group are respectively connected with two wires; the distances between each lead and the end face of the sensor body are different from each other; each lead is serially connected with a fixed resistor; and all the fixed resistors are connected in parallel. In the practical engineering application, the sensor can determine the concrete abrasion depth by grades according to the change of the resistance of the parallelly-connected resistors in the sensor body. The sensor has no limitation of the number of cable cores, and the quantities of the wires and the leads in the sensor body can be increased according to the requirement so as to greatly improve the measurement accuracy and widen the measurement range. The measurement method provided by the invention is easy and practical as well as convenient in operation.

Description

technical field [0001] The invention relates to a sensor, in particular to a sensor for measuring the abrasion depth of concrete. [0002] The invention also relates to a method of measuring using a sensor. Background technique [0003] At present, there is only one sensor for measuring the abrasion depth of concrete in my country, see figure 1 . The body of this sensor is provided with 5 core wires, and the on-off signals of the 5 core wires are used to detect respectively, so it is limited by the number of cable core wires. In practical engineering applications, when a 5-core cable is used, only 5 different working states of the sensor can be monitored, and there are defects of insufficient measurement accuracy or insufficient measurement range. Contents of the invention [0004] In view of the defects of the above-mentioned sensors, the present invention aims to provide a concrete abrasion sensor which is not limited by the number of cable core wires and whose measur...

Claims

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Application Information

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IPC IPC(8): G01B7/26
Inventor 戴晓兵
Owner POWERCHINA ZHONGNAN ENG
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