Quantum Absolute Gravimeter
An absolute gravimeter and quantum technology, applied in the direction of measuring gravitational fields, instruments, measuring devices, etc., can solve the problems of difficult processing, difficult to bake at high temperature, and high price, and achieve the removal of redundant optical fibers, reduction of collimation devices, and better The effect of market prospects
Active Publication Date: 2022-04-15
杭州微伽量子科技有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the system can guarantee the measurement accuracy, the entire system is too large. The structure of two-dimensional magneto-optical trap + three-dimensional magneto-optical trap leads to complex auxiliary cooling optical paths, and many laser collimation systems are introduced.
The three-dimensional magneto-optical trap component is a tetradecahedron formed by cutting off eight vertices from a cube, and holes are opened on each face of the tetradecahedron, which is complicated to manufacture and difficult to process
Among them, the structure of the titanium alloy vacuum chamber is reliable, but it is not easy to process and has a small light-transmitting area; the quartz glass vacuum chamber is easy to miniaturize, but it is expensive, easy to damage, and difficult to bake at high temperature
Most research units at home and abroad are still in the stage of laboratory measurement for the design of the quantum absolute gravimeter probe. The entire vacuum system and supporting optical path are complex in structure, bulky, and expensive, and are not suitable for mobile measurement.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment approach
[0075] As a preferred implementation manner, both the first optical window 111 and the second optical window 112 include a window 1112 , and the window 1112 is hermetically fixed on the side wall of the titanium alloy cavity 11 .
[0076] As a better implementation, such as Image 6 As shown, the side wall of the titanium alloy cavity 11 defines a stepped hole 116, the inner side of the stepped hole 116 is a long hole type, and the outer side forms a stepped groove 117 that expands to the edge and is adapted to the shape of the window 1112. The piece 1112 is embedded in the stepped groove 117 .
[0077] As a better implementation, see Image 6 , the sealed assembly structure between the window 1112 and the stepped hole 116 includes an indium wire 1111, a gasket 1113 and a cover plate 1114 sequentially from the inside to the outside, wherein the indium wire 1111, the gasket 1113 and the cover plate 1114 are Ring, the indium wire 1111 is attached to the surface of the stepped ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a quantum absolute gravimeter, which includes a control system, a laser system and a probe system connected to each other through electric wires and / or optical fibers; a plurality of mechanical shutters; the laser system is used to provide a laser light source; the probe system includes a measurement part and a support frame, and the measurement part includes an ultra-high vacuum unit, an optical path structure and a magnetic field unit; the top of the ultra-high vacuum unit, Both the side wall and the bottom are defined with optical windows for injecting the necessary laser beams for absolute gravity measurement; The optical path structure is distributed on the upper, middle and lower supporting parts, and the magnetic field unit is arranged on the middle supporting part. The present invention is relatively light and handy, compact in structure, and has the characteristics of being mobile and commercialized.
Description
technical field [0001] The invention relates to an absolute gravity measurement device, in particular to a quantum absolute gravity meter. Background technique [0002] High-precision gravity measuring instruments can be used in oil and gas general surveys, mineral resource exploration, geological surveys, environmental monitoring, geophysics and other fields, and the application prospects are very broad. According to different measurement methods, gravity measurement can be divided into absolute gravity measurement and relative gravity measurement. Absolute gravity measurement is to determine the absolute gravity value of a specific position in the earth's gravitational field, and relative gravity measurement is to measure the gravity difference between two specific points in the earth's gravitational field. Absolute gravity measurement generally adopts dynamic method. Mainly utilize two kinds of methods: One is to observe the motion of free fall, which is the method used...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01V7/14
CPCG01V7/14
Inventor 杨秋海郭彬李凯马政杰吴彬程冰
Owner 杭州微伽量子科技有限公司