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Steel cable tension measuring device based on rectangular hollow-core sensor and method thereof

A measuring device and sensor technology, applied in the field of electromagnetic sensors, can solve problems such as inability to measure cable tension and change bridge structure

Inactive Publication Date: 2010-10-13
尹武良 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Including pressure gauge measurement, pressure sensor measurement, frequency method, but the disadvantage of these methods is that the original structure of the bridge will be changed. If the steel cable has been enclosed in the grouted cover or pipe, the tension of the steel cable cannot be measured by the above method

Method used

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  • Steel cable tension measuring device based on rectangular hollow-core sensor and method thereof
  • Steel cable tension measuring device based on rectangular hollow-core sensor and method thereof
  • Steel cable tension measuring device based on rectangular hollow-core sensor and method thereof

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Embodiment Construction

[0015] figure 1 It is a schematic diagram of the system device of the embodiment of the present invention. It consists of two rectangular air-core sensors (for ease of description, the present embodiment sets out from the positional relationship with the cable to be measured, and the two sensors are respectively referred to as the upstream rectangular air-core sensor 1 and the downstream air-core sensor 2, the device of the present invention and method, in actual use, it is not necessary to distinguish which is installed upstream and which is installed downstream), the inductance measuring instrument and the upper computer are composed of four main parts. The lengths of the upstream air-core sensor 1 and the downstream air-core sensor 2 are 100 mm and 150 mm respectively; and the widths are 50 mm and 75 mm respectively. The number of winding turns can be between 1-1000; the diameter of the winding can be between 0.01mm-10mm. The inductance measuring instrument can use a comm...

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Abstract

The invention belongs to the technical field of the electromagnetic sensor, and relates to a steel cable tension measuring device based on a rectangular hollow-core sensor, which is used for measuring steel cable tension. The steel cable tension measuring device comprises two rectangular hollow-core sensors, an inductance measuring instrument and a host computer, wherein the rectangular hollow-core sensors are both formed by winding a coil on a rectangular hollow core and are arranged in parallel to each other, the measurement signal input end of the inductance measuring instrument is connected with two wiring ends of one hollow-core sensor, the inductance value collected by the inductance measuring instrument is transmitted to the host computer, and the tension of a steel cable is obtained by the host computer through table look-up according to the inductance value. The invention simultaneously provides a method of measuring the steel cable tension with the measuring device. Since the electromagnetic hollow-core sensors are adopted, the invention effectively overcomes the defects of the destructive measurement method that the measurement is time-consuming and labor-consuming, and the destructive measurement can not be applied in the online measurement.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic sensors, and relates to a cable tension measuring device and a measuring method. Background technique [0002] Bridges play an important role in the transportation and economic development of a country. The detection of bridges is an important means to ensure the safe operation of bridges. The successful development of bridge detection technology will ensure the safe operation of bridges and prolong the service life of bridges. Significant losses caused by major repairs closing traffic and minimizing losses caused by bridge accidents. [0003] Cable-stayed cables are an important part of cable-stayed bridges. The working state of cable-stayed cables is the main factor determining whether the cable-stayed bridge is in a normal state. Therefore, whether the cable tension of cable-stayed cables can be accurately measured is very important To a large extent, it determines the success or fail...

Claims

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Application Information

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IPC IPC(8): G01L5/10
Inventor 尹武良王奔
Owner 尹武良
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