Grid mesh type fiber bragg grating acceleration geophone
A grid mesh type fiber bragg grating acceleration geophone comprises a fiber bragg grating, a capillary tube, a shell, an inertial mass block and a grid mesh type sensitive structure; the capillary tube is arranged in the center of the top of the shell and communicated with the interior of the shell...
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| creator | WANG CHUNFANG GAO HONG YU DAKUAN LIU WANGFEI ZHANG RONG LIU QINPENG |
| description | A grid mesh type fiber bragg grating acceleration geophone comprises a fiber bragg grating, a capillary tube, a shell, an inertial mass block and a grid mesh type sensitive structure; the capillary tube is arranged in the center of the top of the shell and communicated with the interior of the shell; a boss is arranged on the inner side wall of the shell, the grid mesh type sensitive structure is erected on the boss, and the inertial mass block is arranged in the center of the grid mesh type sensitive structure; and the fiber bragg grating sequentially penetrates through the capillary tube and the inertial mass block to be connected to the grid mesh type sensitive structure, and the fiber bragg grating is connected with an external demodulation unit. According to the sensing principle that the central wavelength drifts after the fiber bragg grating is subjected to external strain, the inertia mass block of the detector generates inertia force under the excitation of external vibration signals. Under the actio |
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| language | chi ; eng |
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| subjects | DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING |
| title | Grid mesh type fiber bragg grating acceleration geophone |
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