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Sensitive detection unit of nuclear magnetic resonance gyroscope and manufacturing method of the unit

A nuclear magnetic resonance gyroscope and sensitive detection technology, which is applied in the direction of instruments, measuring devices, steering sensing equipment, etc., can solve the problems of low precision of sensitive detection units and cannot meet the requirements of nuclear magnetic resonance gyroscopes, and achieve high practical value, reliable performance, The effect of improving the overall accuracy

Inactive Publication Date: 2017-03-08
HARBIN ENG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to solve the problem that the existing sensitive detection unit has low precision and cannot meet the requirements of the nuclear magnetic resonance gyroscope, and now provides a sensitive detection unit of the nuclear magnetic resonance gyroscope and a manufacturing method of the unit

Method used

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  • Sensitive detection unit of nuclear magnetic resonance gyroscope and manufacturing method of the unit
  • Sensitive detection unit of nuclear magnetic resonance gyroscope and manufacturing method of the unit

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specific Embodiment approach 1

[0014] Specific implementation mode one: refer to figure 1 and figure 2 Specifically illustrate the present embodiment, the nuclear magnetic resonance gyroscope sensitive detection unit described in the present embodiment, it comprises: VCSEL laser device 13, polarizer 14, collimator lens 15, 1 / 4 wave plate 16, nuclear magnetic resonance gas chamber 19, Photodetector 21 and support;

[0015] The bracket includes: column 22, base 23, laser slot 1, polarizer slot 2, collimator lens slot 3, 1 / 4 wave plate slot 4, clamp 5 above the gas chamber, and clamp 6 below the gas chamber;

[0016] The column 22 is vertically fixed on the base 23, and the base 23 is provided with a photodetector light hole 9, a laser slot 1, a polarizer slot 2, a collimator lens slot 3, a 1 / 4 wave plate slot 4, Fixture 5 above the gas chamber and fixture 6 below the gas chamber are sequentially fixed on the column 22 from top to bottom, and laser slot 1, polarizer slot 2, collimator lens slot 3, 1 / 4 wave ...

specific Embodiment approach 2

[0022] Embodiment 2: This embodiment is a further description of the NMR gyroscope sensitive detection unit described in Embodiment 1. In this embodiment, the bracket is an integrated structure.

specific Embodiment approach 3

[0023] Embodiment 3: This embodiment is a further description of the NMR gyroscope sensitive detection unit described in Embodiment 1. In this embodiment, the material of the bracket is photosensitive resin.

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Abstract

The invention relates to a nuclear magnetic resonance gyroscope sensitivity detection unit and a manufacturing method of the nuclear magnetic resonance gyroscope sensitivity detection unit and belongs to the field of atom sensors. The nuclear magnetic resonance gyroscope sensitivity detection unit aims to solve the problems that an existing sensitivity detection unit is low in accuracy and can not meet the requirements of a nuclear magnetic resonance gyroscope. According to the nuclear magnetic resonance gyroscope sensitivity detection unit and the manufacturing method of the nuclear magnetic resonance gyroscope sensitivity detection unit, the main structure is completed by means of the 3D printing technology, and the positions of all elements are directly limited; lasers emitted by a VCSEL laser device are polarized through a polarizer, collimated through a small-focal-length collimation lens and then emitted into a nuclear magnetic resonance air chamber after the polarization state is adjusted through a 1 / 4 wave plate; alkali metal atoms and inert gas atoms in an atom air chamber are pumped into an excited state through pump light first, and then the emitted light of the nuclear magnetic resonance air chamber is emitted to the photosensitive surface of a photoelectric detector to complete detection of nuclear magnetic resonance signals. The nuclear magnetic resonance gyroscope sensitivity detection unit and the manufacturing method of the nuclear magnetic resonance gyroscope sensitivity detection unit are suitable for development of a micro-structure nuclear magnetic resonance gyroscope system.

Description

technical field [0001] The invention belongs to the field of atomic sensors. Background technique [0002] The nuclear magnetic resonance atomic gyroscope is a sensor that uses the atomic nuclear magnetic resonance frequency change to detect the angle change. The sensitive detection unit is the core component of the entire gyroscope. Its stability and accuracy determine the overall nuclear magnetic resonance atomic gyroscope of the system. Detection accuracy, however, the existing sensitive detection unit has low precision, high power consumption, and large volume, which cannot meet the requirements of nuclear magnetic resonance gyroscopes. Therefore, how to design a sensitive detection unit with high precision, low power consumption, and small size has become a manufacturing The key to an MRI gyroscope. Contents of the invention [0003] The present invention aims to solve the problem that the existing sensitive detection unit has low precision and cannot meet the requir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C19/60G01C25/00
CPCG01C19/60G01C25/00
Inventor 张鹏陈海涛孙帅徐兴烨黄辉
Owner HARBIN ENG UNIV
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