Bridge cable damage electric detecting device and detecting method

A detection method and electrical detection technology, applied in the direction of material resistance, etc., can solve the problems of complex monitoring device, large result error, difficult operation, etc., and achieve the effect of small calculation error, accurate resistance value and simple detection principle.

Inactive Publication Date: 2015-03-25
邢鹏达
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The detection of cable bridge damage is a very necessary work. The monitoring devices currently used are very complicated, the operation is relatively difficult, and the detection results have large errors.

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  • Bridge cable damage electric detecting device and detecting method

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Embodiment Construction

[0014] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a bridge cable damage electrical detection device and detection method proposed by the present invention.

[0015] refer to figure 1 , a bridge cable damage electrical detection device and detection method, the detection device includes: a voltage regulation module, a voltage output wire, a current detector, a current amplification module, a resistance calculation module, a resistance comparison module, and a damage rate calculation module, the resistance The comparison module is equipped with an input device, which directly inputs the theoretical resistance value calculated manually into the resistance comparison module or the factor for determining the resistance value into the resistance comparison module. The detection method is:

[0016] A. Current generation and detection: the voltage regulation module adjusts the output voltage to a lower value, and the voltage is loaded on both end...

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Abstract

The invention discloses a bridge cable damage electric detecting device and a bridge cable damage electric detecting method. The detecting device comprises a voltage regulating module, a voltage output guide wire, a current detector, a current amplifying module, a resistance calculating module, a resistance comparing module and a damage rate calculating module; the detecting method comprises the following steps: A, generating and detecting current; B, calculating the resistance; C, comparing the resistance; and D, calculating the damage rate. The resistance value is measured and calculated electrically, the area change value is determined according to the difference value between the measured resistance value and the theoretical resistance value, the detecting principle is simple; during specific detection, the voltage is only loaded to the two ends of the cable, so that only the current on the cable is needed to be measured; the specific operation steps are simple, during the measured result treatment, the measured current is amplified through a current amplifier for calculating the size of the resistance and amplifying the current value, so that the precise current value can be obtained, the calculating errors are small, and the calculated resistance value is relatively precise.

Description

technical field [0001] The invention relates to the technical field of bridge damage detection, in particular to a bridge cable damage electrical detection device and a detection method. Background technique [0002] The cable bridge is a new type of bridge that appeared after World War II. Due to its beautiful appearance, convenient construction and low cost, it has become the main bridge type of long-span bridges. A large number of cable bridges have been built in my country, and in the past 10 years there have been more than More than 20 cable bridges with a span of more than 400m have been built one after another, and a number of cable bridges with world-leading spans are under construction or in preparation. The cable structure system is the main load-bearing component of long-span bridges. The normal use and overall safety of the bridge are extremely important. Since the cable structure system is the lifeline of the cable-bearing bridge, once disease and deterioration oc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/20
Inventor 邢鹏达
Owner 邢鹏达
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