Ground horizontal displacement measuring meter
A horizontal displacement and measuring meter technology, applied in the field of measuring instruments, can solve the problems of displacement deviation, displacement measurement influence, pendulum line top displacement response is not obvious, etc., to achieve the effect of avoiding looseness and convenient measurement
Inactive Publication Date: 2017-12-12
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
However, because the error in acceleration measurement will increase significantly after the second integration, the displacement measured by this method has a large deviation; The line-top displacement response is not obvious, and a relatively stable absolute reference system is obtained
However, this method also has certain shortcomings. The delayed response will have a great impact on the later displacement measurement. At the same time, when the pendulum length is extended, it is easily affected by the Coriolis force, which greatly affects the accuracy of the displacement measurement results.
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[0014] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.
[0015] Such as Figure 1-2 As shown, the embodiment of the present invention provides a geodetic displacement measuring instrument, comprising a trolley 1, the left tail of the trolley 1 is equipped with a measuring device 2; the measuring device 2 includes a data dial 3, a dial screw fixing body 4 , elastic sleeve 5, screw 6, guide rod 7, lifting rod 8, housing 9, spring 10, contact 11, rigid connection end 12, hole 13, horizontal rod 14, fixing bolt 15, fixing block 16, card slot 17 and a fixed rod 18; the lower side of the data dial 3 is welded with a dial spiral fixed body 4, the data dial 3 is connected with the elastic sleeve 5 through the dial spiral fixed body 4, and the lower side of the dial spiral fixed body 4 i...
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The invention discloses a ground horizontal displacement measuring meter. The ground horizontal displacement measuring meter comprises a walking vehicle, wherein a measuring device is arranged at the tail part of the left side of the walking vehicle; the measuring device comprises a data dial, a dial spiral fixing body, an elastic sleeve, a screw, a guide rod, a lifting rod, a casing, a spring, a contact head, a rigid connecting end, a hole, a horizontal rod, fixing bolts, fixing blocks, clamping grooves and fixing rods. The ground horizontal displacement measuring meter has the advantages that by running the walking vehicle, the ground horizontal data is transferred to the data dial by the contact head; by utilizing a camera to shoot up, and utilizing a display device to display, the measuring is convenient; by adopting the design method of splitting the data dial and the rigid connecting end, the loosening of the data dial after use for a long time is avoided.
Description
technical field [0001] The invention relates to the technical field of measuring instruments, in particular to a geodetic horizontal displacement measuring instrument. Background technique [0002] Geodetic measurement is an important means of studying crustal movement and monitoring geological hazards, and it is also of great significance to the study of geodynamics and the observation of earthquake precursors. The development of various earth deformation measuring instruments based on the ground at home and abroad is relatively slow, and the earth displacement measuring instruments in the horizontal direction are rare. The measurement of displacement must be based on a reference system. In daily life, we mostly use the ground as an absolute reference system. However, when large ground displacements are caused by seismic effects, the reference system of the earth is no longer applicable. In the existing seismic displacement measurement, the ground acceleration is measured...
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IPC IPC(8): G01C7/04
CPCG01C7/04
Inventor 杨久东吴风华侯金亮
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY