Unlock instant, AI-driven research and patent intelligence for your innovation.

Differential detection method of magnetic levitation accelerometer based on diamond nv color center

An accelerometer and detection method technology, applied in the field of quantum sensing, can solve the problem of inability to accurately determine the source and size of noise, and achieve the effects of reducing errors, reasonable design, and improving accuracy

Active Publication Date: 2020-08-21
ZHONGBEI UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In various experimental measurements, the experimental device or the external environment will inevitably introduce noise, some of which can be calculated, but more noise is due to the limitations of current technology and understanding, and the randomness of some noise The source and size of the noise cannot be accurately determined

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Differential detection method of magnetic levitation accelerometer based on diamond nv color center
  • Differential detection method of magnetic levitation accelerometer based on diamond nv color center

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] A kind of differential detection method of the magnetic levitation accelerometer based on diamond NV color center, comprises the steps:

[0021] (1) Build a differential detection system, such as figure 1 As shown, the magnetic levitation accelerometer 7 is located at the center of the system, the cylindrical permanent magnet 12 is suspended in the magnetic levitation accelerometer 7, and is in a static state, and the diamond 6, the objective lens 3, and the two are arranged successively on both sides of the magnetic levitation accelerometer 7 with an NV color center. A light detection magnetic resonance optical path composed of a color mirror 10, a filter mirror 11, and a photodetector 2;

[0022] (2) With a 532nm laser as the light source, the laser is divided into two beams after incident on the beam splitter 8, one beam of laser is...

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

No PUM Login to View More

Abstract

The invention provides a differential detection method of a magnetic suspension accelerometer based on a diamond NV color center. According to the differential detection, a high-sensitivity property of the diamond NV color center is utilized; under a magnetic field, continuous wave and laser with the wavelength of 532nm are added and a diamond generates fluorescent light under light nuclear magnetic resonance; a light signal is converted into an electric signal under a photoelectric detector; an ODMR (Optical Detection Magnetic Resonance) spectrum is generated on an oscilloscope and a magneticfield at two ends is changed through the movement of a permanent magnet; after the magnetic field on the diamond is changed, a peak value generated on the oscilloscope is drifted, and variable quantities of a peak value separation under a static state of distances of two sides are calculated respectively, and the variable quantities are subjected to differential processing to eliminate errors; non-linear errors are caused by changes of outer magnetic noises so that the accelerated speed is more accurate and the signal-to-noise ratio is increased.

Description

technical field [0001] The invention belongs to the technical field of quantum sensing, and in particular relates to a differential detection method of a magnetic levitation accelerometer based on a diamond nitrogen vacancy (NV) color center. Background technique [0002] The diamond nitrogen vacancy color center has excellent quantum sensing characteristics. Since 1997, the Wrachtrup research group in Stuttgart, Germany realized the scanning confocal imaging and light detection magnetic resonance spectroscopy measurement of a single NV color center for the first time, and the light detection of the diamond NV color center The measurement of magnetic resonance opened up the use of diamond in quantum technology. Based on the Zeeman splitting of the NV color center under the external magnetic field, the position of the ODMR peak under any magnetic field can be obtained according to the ground state Hamiltonian of the NV color center under the external magnetic field, so as to ...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N24/08
CPCG01N24/08
Inventor 郭浩刘俊唐军刘文耀赵锐杜芳芳王磊刘郁松
Owner ZHONGBEI UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com