A multi-parameter detection quantum sensor based on piezomagnetic effect

By utilizing a multi-parameter detection quantum sensor based on the piezomagnetic effect and diamond with cross-induction rings and NV color centers, high spatial resolution humidity and multi-parameter detection were achieved. This solved the problems of low resolution and high cost of traditional humidity sensors and improved detection precision and sensitivity.

CN117705926BActive Publication Date: 2026-07-21ANHUI GUOSHENG QUANTUM TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI GUOSHENG QUANTUM TECH CO LTD
Filing Date
2023-12-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing humidity sensors have low spatial resolution and high detection costs. Furthermore, traditional humidity detection methods are complex and difficult to implement multi-parameter detection.

Method used

A multi-parameter detection quantum sensor based on the piezomagnetic effect is designed. It utilizes diamond containing NV color centers and cross-arranged sensing rings to detect humidity, acceleration, and external force through the deformation and permeability changes of the sensing rings. Combined with optical detection devices and microwave technology, it achieves high spatial resolution detection of multiple parameters.

Benefits of technology

It achieves humidity detection with nanometer-level spatial resolution, reduces detection costs, and can simultaneously detect acceleration and external force, improving detection precision and sensitivity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117705926B_ABST
    Figure CN117705926B_ABST
Patent Text Reader

Abstract

The application provides a multi-parameter detection quantum sensor based on piezomagnetic effect, comprising: a diamond containing NV color centers, two induction rings, two electromagnets, and an optical detection device, the induction rings have openings, the two induction rings are arranged in a cross mode at the openings, the diamond is located at the cross of the openings, the induction ring comprises an induction section and a magnetic conducting section, the induction section is made of a material having piezomagnetic effect, and the part of the induction section to the opening is in a suspended state, one induction ring is used to produce stress change after sensing humidity, so that the magnetic permeability changes, and then the change of the magnetic induction intensity is detected through the diamond NV color center to realize the detection of humidity, and the other induction ring is used to produce stress change after sensing acceleration or external force, and then the acceleration or external force is detected through the NV color center. Therefore, based on the nanoscale spatial resolution of the diamond NV color center, the spatial resolution of the detection can be greatly improved, more precise measurement effect can be obtained, and multi-parameter detection can be realized.
Need to check novelty before this filing date? Find Prior Art