A system and method for multi-rotating permanent magnets to drive micromagnetic devices
A permanent magnet and micro-magnetic technology, applied in surgical navigation systems, medical science, surgery, etc., can solve problems such as heat generated by electromagnetic systems, and achieve the effects of simple structure, wide application range, and low cost
Active Publication Date: 2021-01-26
JIANGNAN UNIV
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of the above problems and technical requirements, the present inventor proposed a system and method for multi-rotating permanent magnets to drive micro-magnetic devices. This application can solve the problem of heat generated by the electromagnetic system and expand the scope of application.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0031] This application discloses a system for driving micromagnetic devices by multi-rotating permanent magnets. figure 1 A schematic structural diagram of the system is shown, the system includes: a micromagnetic device to be driven, N permanent magnets, a drive circuit, a host computer and a camera, N is a positive integer and N≥6, figure 1 Micromagnetic devices are not shown. The micromagnetic device is located in a spherical working space, N permanent magnets are located outside the working space, N permanent magnets are evenly distributed on a virtual spherical surface, and the spherical center of the virtual spherical surface coincides with the spherical center of the working space. The permanent magnets in this application The magnets are neodymium magnets. The driving circuit includes a driving board, an AC / DC converter, N steppin...
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
Login to View More Abstract
The invention discloses a system and method for driving a micro-magnetic device by a multi-rotating permanent magnet, and relates to the field of intelligent control. The application uses a permanent magnet as a field source, and a driving circuit drives the rotation of the permanent magnet so as to control the micro-magnetic device in any direction. No input power and thus no heat generation near the workspace, making the application suitable even in temperature-sensitive applications, compared to electromagnetic drives, permanent magnets can generate about 10 to 20 times the field, depending on the size of the workspace Strong and 2 to 3 times the gradient force, wide application range, simple structure, low cost, no translation parts, high precision, good stability; combined with the control of the host computer, it can quickly find the desired field strength Optimal control input required for force and force, and real-time monitoring of the motion of the micromagnetic device using a camera.
Description
technical field [0001] The invention relates to the field of intelligent control, in particular to a system and method for multi-rotating permanent magnets driving micro-magnetic devices. Background technique [0002] The wireless control of micro-magnetic devices such as micro-robots (hereinafter referred to as micro-magnetic devices) has a good prospect, because these micro-magnetic devices can enter closed spaces such as the human body, and in this case, it is impossible to use physical devices. Magnetic control using externally generated magnetic fields has been shown to be the preferred control method for controlling these devices. This type of magnetic control is suitable for wireless manipulation in confined spaces and thus has many medical applications, including ophthalmic surgery, catheter steering, capsule endoscopy, and many micromanipulation applications, including single cells and microparticles. [0003] Many applications involving magnetic control require a ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/04A61B1/00A61B34/00A61B34/20A61F9/007A61M25/01
Inventor 樊启高贾捷朱一昕张海张鹏松赵正青朱高文唐袁袁
Owner JIANGNAN UNIV