Bridge fault detection device

A technology for fault detection and bridges, which is used in measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., and can solve problems such as low bridge detection efficiency and hidden safety hazards for inspectors

Inactive Publication Date: 2015-12-23
浙江安侣智能科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

There is also a plan to use a bridge inspection vehicle including a car body and a truss-type working arm

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The internal latent faults of the bridge are often accompanied by vibration (mainly generated by vehicles, pedestrians, etc. when passing the bridge). Breakage of internal wooden support components, etc.

[0030] The vibrations caused by different vibration sources correspond to different frequency spectrum ranges, such as:

[0031] The vibration spectrum range caused by the loosening of connecting parts such as screws inside the bridge may be concentrated in the range of 2kHz to 10kHz, and the range of the vibration spectrum caused by the falling of connecting parts such as screws inside the bridge is mainly concentrated in the range of 6kHz to 10kHz. The vibration intensity caused by loosening or falling can reach, for e...

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Abstract

The invention provides a bridge fault detection device. The bridge fault detection device comprises a vibration sensor group, a first-stage operational amplifier, a filter, a second-stage operational amplifier and a processor which are sequentially connected, wherein the vibration sensor group is used for converting acquired bridge vibration information into a current signal and transmitting the current signal to the first-stage operational amplifier; the first-stage operational amplifier is used for amplifying the current signal for the first time, generating a first voltage signal and transmitting the first voltage signal to the filter; the filter is used for carrying out filtering treatment on the first voltage signal and transmitting the filtered first voltage signal to the second-stage operational amplifier; the second-stage operational amplifier is used for amplifying the filtered first voltage signal for the second time, generating a second voltage signal and transmitting the second voltage signal to the processor; and the processor is used for carrying out preset analysis on the received second voltage signal for obtaining analysis results. Therefore, a manual detection manner is replaced, all the faults of a bridge can be more comprehensively detected, detection accuracy can be improved, and potential safety hazard of personnel during detection can be avoided.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a bridge fault detection device. Background technique [0002] With the development of transportation, the development of bridge construction, which is an important part of transportation, is advancing by leaps and bounds. In order to ensure the safety of traffic participants, after the bridge is completed and put into use, regular inspections must be carried out on the bridge. [0003] In the prior art, inspections are usually carried out manually. For example, when detecting faults on the substructure of a bridge, the main equipment used includes scaffolding, work baskets, and bridge inspection vehicles. Using these equipment, inspection personnel must work with the bridge under the bridge. Working between water surfaces not only has high cost of use but also limits operations. There is also a plan to use a bridge inspection vehicle including a car body and a truss-type wor...

Claims

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Application Information

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IPC IPC(8): G01H17/00
Inventor 蔡晓洋
Owner 浙江安侣智能科技有限公司
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