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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 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

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

Embodiment approach 1

[0039] Such as Figure 4 Shown, the resistive concrete abrasion sensor consists of:

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

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

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

[0043] (4) According to the order of the leads, the fixed resistance values ​​connected in series in the leads are as follows: 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) Firstly, according to the fixed resistance value in the sensor body, calculate the parallel resistance value Rbi ...

Embodiment approach 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 an insulating material, and the abrasion resistance of the body A is close to but not higher than that of the concrete material;

[0055] (2) Conductor D, conductor E and conductor F, and perpendicular to the end face of the sensor body;

[0056] (3) Two sets of lead wires, each group is eleven, respectively connected to wire E and wire F and wire E and wire D, and the lead wires are parallel to the end surface of the sensor body;

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

[0058] (5) According to the order of the lead wires, the fixed resistance values ​​connected in series in the lead wires are as f...

Embodiment approach 3

[0069] Such as Figure 6 As shown, Embodiment 3 is basically the same as Embodiment 1. In this solution, three calibration lines are added to the sensor body A; the distances between the three calibration lines and the end face of the sensor body are 20mm, 50mm, and 100mm respectively, which are in line with the concrete abrasion damage standard (mild, moderate, severe). The calibration line checks the abrasion depth of concrete and also plays a backup role.

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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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