Sensor positioning tool and geotechnical test pile body concern point displacement measurement method

A technology for positioning tooling and sensors, applied in the direction of electric/magnetic solid deformation measurement, measurement device, electromagnetic measurement device, etc., can solve the problems of single experimental working condition, low degree of freedom, simple structure, etc., and achieves firm connection and convenient storage. , the effect of improving the accuracy

Pending Publication Date: 2022-01-14
ZHEJIANG SCI-TECH UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, its manufacturer only provides ferrules for fixing LVDT and does not provide corresponding fixtures. In geotechnical experiments, most of the objects tested by LVDT are special-shaped components. In order to measure the displacement and deformation of the focus point, a flexible and stable fixation is required And adaptable support for different working conditions
The existing support structure is simple, the degree of freedom is low, and the applicable experimental conditions are single

Method used

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  • Sensor positioning tool and geotechnical test pile body concern point displacement measurement method
  • Sensor positioning tool and geotechnical test pile body concern point displacement measurement method

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with accompanying drawing

[0047] The first preferred embodiment:

[0048] A sensor positioning tool, such as figure 1 As shown, it includes a model box 1, a fixed frame 5 for placing the test piece in the center, and a support foot 2 connecting the model box 1 and the fixed frame 5; the support foot 2 and the model box 1 are connected by bolts 321, and the bottom plate of the model box 1 is provided with A plurality of positioning holes 7 facilitate the positioning of the fixing frame 5 under different working conditions; multiple supporting feet 2 are arranged along the orthogonal direction to provide stable support for the device.

[0049] The fixed frame 5 is surrounded by a plurality of stations for installing LVDT displacement sensors on the outer ring of the test piece, and the fixed frame 5 is provided with a horizontal adjustment component 4 that moves the linkage stations along th...

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Abstract

The invention discloses a sensor positioning tool and a geotechnical test pile body concern point displacement measurement method, which relates to the field of geotechnical test displacement sensor fixing devices, and solves the problem that displacements of different positions of a pile body are difficult to measure in a geotechnical model test. According to the technical scheme, the sensor positioning tool is characterized by comprising a model box, a fixing frame, supporting legs, a vertical height adjusting assembly and a horizontal adjusting assembly; wherein the model box provides a fixing platform for the supporting legs of a base; the vertical height adjusting assembly comprises a movable support and a fixing nut, and the horizontal height adjusting assembly is in bolted connection with the fixing support. The technical effect is that the specific position of the displacement sensor is adjusted through the vertical height adjusting assembly and the horizontal adjusting assembly so as to adapt to different pile diameters, different pile lengths and different experimental test requirements.

Description

technical field [0001] The invention relates to the field of geotechnical test equipment, in particular to a sensor positioning tool and a displacement measurement method for a point to be measured. Background technique [0002] LVDT displacement sensor, full name linear variable differential transformer, belongs to linear displacement sensor. The working principle is simply a movable iron core transformer. It consists of a primary coil, two secondary coils, iron core, coil skeleton, shell and other components, and is widely used in displacement measurement of geotechnical test objects. However, its manufacturer only provides ferrules for fixing LVDT and does not provide corresponding fixtures. In geotechnical experiments, most of the objects tested by LVDT are special-shaped components. In order to measure the displacement and deformation of the focus point, a flexible and stable fixation is required And it is a bracket with strong adaptability for different working condi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/02G01B7/16
CPCG01B7/02G01B7/16
Inventor 徐越栋刘开富张振营郑志均吴大志
Owner ZHEJIANG SCI-TECH UNIV
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