A multi-channel sensing system and detection method

By using spaced cone regions and microcavities to form the echo wall mode in a multi-channel sensing system, the problems of fixing and complex structure of the microcavities in the prior art are solved, and particles with high accuracy and flexibility are realized. Improves the reuse rate and coupling efficiency of the device.

CN112903545BActive Publication Date: 2025-01-10HUAQIAO UNIVERSITY
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202110282064.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-03-16
Publication Date
2025-01-10
Estimated Expiration
2041-03-16

AI Technical Summary

Technical Problem

In the existing echo wall mode sensing technology, the microcavity mode is fixed, the structure is complex, the coupling method is complex, the size and refractive index of the micro droplets are difficult to control, and it is easily affected by the environment and leads to rupture and evaporation.

Method used

Design a multi-channel sensing system, including a capture device, a light source device, a sample cell and a signal processing device, using at least two optical fibers, each optical fiber being provided with a first cone region and a second cone region arranged spaced along its length direction. , capture and manipulate particles in the sample pool to form an echo wall mode, receive light through a signal processing device and process it to obtain parameter information, realize the echo wall mode cascade of the particles and differential sensing system, and improve detection accuracy and flexibility.

Benefits of technology

The particle echo wall mode is cascaded on a fiber to form a multi-channel parallel detection array sensor to improve detection accuracy and stability, suppress noise, improve the reuse rate of the device, and achieve the relative position of the cone area and the microcavity by adjusting the relative position of the cone area and the microcavity. The highest coupling efficiency, stable capture and manipulation of particles.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN112903545B_ABST
    Figure CN112903545B_ABST
Patent Text Reader

Abstract

A multi-channel sensing system and detection method, including a capture device, a light source device, a sample pool, a signal processing device and at least two optical fibers, each optical fiber is provided with a first cone region and a second cone region, the at least two first cone regions are placed in the sample pool, and the at least two second cone regions are placed in the sample pool; the capture device is used to capture and manipulate the first and second particles in the sample pool to be placed in the first and second cone regions respectively; the light source device is located at one end of the optical fiber to send light into the optical fiber, and when the light is transmitted to the cone region, it is coupled to the microcavity of the particle to form a whispering gallery mode, and the light is received and processed by the signal processing device to obtain parameter information. The present invention can realize the cascading of the whispering gallery mode of the particle on an optical fiber to form a multi-channel parallel detection array sensor, improve the accuracy of the detection, and the microcavities of different particles can excite different whispering gallery modes, realize a large number of detections, have high stability and flexibility, and improve the reusability of the device.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Multi-channel sensing system

    CN214584718U