Three-component standard vibration table based on lock type decoupling device

A decoupling device and three-component technology, which is applied in the field of three-component standard shaking tables, can solve the problems of complex data processing, time-consuming, and difficulty in obtaining sensitivity matrices, achieve good decoupling effects, solve three-component motion decoupling, and avoid interference effect

Active Publication Date: 2012-02-29
ZHEJIANG UNIV
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Problems solved by technology

[0004] In order to overcome the disadvantages of the existing technology, which can only use a single-dimensional vibration calibration system to calibrate the three measurement axes sequentially when calibrating the three-dimensional vibration sensor, it takes a long time, the data processing is complicated, and it is difficult to obtain the sensitivity matrix reflecting the coupling relationship between dimensions. The invention provides a three-component standard vibration table based on a lock-type decoupling device that can simultaneously excite three measurement axes of a three-dimensional vibration sensor

Method used

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  • Three-component standard vibration table based on lock type decoupling device
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  • Three-component standard vibration table based on lock type decoupling device

Examples

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Embodiment 1

[0022] refer to Figure 1-4

[0023] The three-component standard vibration table based on the locking decoupling device includes a base 8, and the base is provided with an X-direction electromagnetic vibration table 1 that vibrates along the X-axis, and a Y-direction electromagnetic vibration table 5 that vibrates along the Y-axis , a Z-direction electromagnetic vibrating table 7 vibrating along the Z-axis, and a three-dimensional vibrating platform 3 connected with three electromagnetic vibrating tables 1, 5, and 7; each electromagnetic vibrating table passes through a motion decoupling device 2 corresponding to the vibrating table , 4, 6 are connected with the three-dimensional vibration platform 3;

[0024] The motion decoupling device includes a first frame A and a second frame B made of rigid materials, the first frame A and the second frame B are interlocked, and the first frame and the second frame are both made of outer edges , the inner edge, the first connecting s...

Embodiment 2

[0035] The difference between the present embodiment and the first embodiment is that: one end of the airflow channel is sealed, and the other end is connected to the external compressed air source.

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Abstract

A three-component standard vibration table based on a lock type decoupling device is disclosed. The vibration table comprises: a pedestal, an X-direction electromagnetic vibration table, a Y-direction electromagnetic vibration table, a Z-direction electromagnetic vibration table and a three-dimensional vibration platform. The each electromagnetic vibration table is connected with the three-dimensional vibration platform through a motion decoupling apparatus. The motion decoupling apparatus comprises: a first frame and a second frame. The first frame and the second frame are formed by outer sides, inner sides, first connection sides and second connection sides, wherein the first connection sides and the second connection sides are located between the outer sides and inner sides. The outer sides are opposite to the inner sides. The inner side of the frame is inserted into the other frame. Minimal gaps exist between the inner side of the first frame and the inner side and the outer side of the second frame. An interval is arranged between the inner side of the second frame and the outer side of the first frame. An airflow channel is communicated with an external compressed air source. The outer side of the first frame is connected with the electromagnetic vibration tables and the outer side of the second frame is connected with the three-dimensional vibration platform. A structure is simple. Installation is convenient. A decoupling effect is good. The vibration table is suitable for a vibration calibration system.

Description

technical field [0001] The invention relates to a three-component standard vibration table based on a locking type decoupling device. technical background [0002] Multi-dimensional vibration sensors are widely used in seismic monitoring, geological exploration, multi-dimensional vibration environmental tests and other fields. With the continuous development of modern vibration measurement technology, various multi-dimensional vibration sensors are also emerging. However, at present, there is no unified national or industry standard for the calibration of multi-dimensional vibration sensors at home and abroad, which greatly limits the development of multi-dimensional vibration research. [0003] At present, the calibration of three-dimensional vibration measuring sensors is mostly carried out sequentially on the three measurement axes using a single-dimensional vibration calibration system. The accuracy is low, and it is difficult to obtain a sensitivity matrix that reflect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/06
Inventor 何闻王春宇沈润杰贾叔仕
Owner ZHEJIANG UNIV
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