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A device and method for detecting fluid magnetic particles

A magnetic particle and fluid technology, applied in measurement devices, individual particle analysis, particle and sedimentation analysis, etc., can solve problems such as increasing the volume of the device, and achieve the purpose of eliminating bubble refraction, smooth adsorption and release, and avoiding light reflection and refraction. Effect

Active Publication Date: 2017-10-27
GUANGZHOU MECHANICAL ENG RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in order to realize the expansion of the focusing range according to the prior art, it is necessary to increase the volume of the device and replace a more expensive lens

Method used

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  • A device and method for detecting fluid magnetic particles
  • A device and method for detecting fluid magnetic particles
  • A device and method for detecting fluid magnetic particles

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Embodiment

[0038] like figure 1 , 2 As shown, the device for detecting fluid magnetic particles in the present invention includes: an imaging module 207 for collecting images of magnetic particles, an adsorption module 205 , an oil circuit module 206 , a final control unit 201 , a host computer 202 , and a lower computer 203 . The imaging module 207 includes an imaging device 1 , a filter 2 , a lens barrel 3 , a lens group 4 , a focusing mechanism 5 , a prism, an objective lens 6 and a reflection light source 7 . The adsorption module 205 includes an iron core frame 8 , a coil 9 and an excitation adsorption component 10 ; the oil circuit module includes a transparent sheet 11 , an oil channel 12 and a base 13 .

[0039] The imaging device 1 is located above the optical filter 2. The imaging device 1 is used as a photosensitive element to collect images. The imaging device 1 is connected to the lens barrel 3; the optical filter 2 is used to filter part of the scattered stray light, makin...

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Abstract

The invention relates to a device and method for detecting fluid magnetic particles. The device includes an imaging module, an adsorption module, a control module, a light-transmitting sheet and an image processing module; the imaging module, the adsorption module and the light-transmitting sheet are arranged on the same side of the flow channel; the adsorption The module is electrically connected to the control module; the light-transmitting sheet is fixed on the upper surface of the flow channel and is located in the center of the optical path of the imaging module. It is electrically connected with the imaging module and the control module, and the particle image signal output by the imaging module is processed and then uploaded to the control module; the control module performs image analysis and processing on the image signal to obtain the physical characteristic data of the particle. The invention eliminates the influence of air bubbles in the fluid on the imaging of the magnetic particles, realizes the detection of the magnetic particles in the fluid, and can obtain the quantity, shape, texture and size of the magnetic particles in the detected fluid.

Description

technical field [0001] The invention relates to the field of equipment status detection and analysis, in particular to a device and method for detecting fluid magnetic particles based on magnetic particle imaging in fluid to obtain physical characteristics of magnetic particles. Background technique [0002] The technical principle of detecting fluid magnetic particles is to use inductive excitation to generate magnetic force, absorb magnetic particles in the fluid, and perform particle imaging processing in order to detect the physical characteristics of particles such as size, concentration, shape, color, and texture. [0003] In some existing magnetic particle detection devices, such as the Chinese invention patent application with the publication number CN103983543A, the lens and the adsorption parts are respectively arranged on both sides of the oil flow channel, and the focus range is only 1.8 times, which results in In the case of oil particles, due to the refraction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/02G01N15/10G01N15/00
Inventor 贺石中陈闽杰冯伟冼建波何佳乐陶辉
Owner GUANGZHOU MECHANICAL ENG RES INST
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