Dual-mode anti-magnetic rotor inductive rotating microgyroscope
A magnetic rotor, dual-mode technology, applied in rotating gyroscopes and other directions, can solve the problems of complex process, centrifugal overturning of the rotor, low lateral stiffness, etc., to achieve the effect of simple process, reduced support process, and improved impact resistance.
Inactive Publication Date: 2009-09-23
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
Its shortcomings are: the electromagnetic coil needs to provide multiple functions of suspension, stability and rotation, the problem of eddy current heat generation is more serious, the process is more complicated, and the lateral stiffness is low. Due to the influence of exciting vibration, it is easy to make the rotor centrifugally throw over
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[0022] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.
[0023] like figure 1 As shown, this embodiment adopts a three-layer structure, which is composed of an upper stator 1 , a rotor 3 and a lower stator 2 . The upper stator 1 is buckled upside down on the lower stator 2, so that the upper and lower stators face each other to complete the assembly, thereby forming a cavity, and the rotor 3 is suspended in the cavity. During assembly, the surface facing the rotor 3 in the structure of the upper stator 1 is called the front, and the corresponding other surface is called the back. Similarly, the surface facing the rotor 3 in the structur...
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The invention relates to a dual-mode inverse magnetic rotor induction rotating micro-gyroscope in the field of micro-electromechanical technology. The present invention is composed of an upper stator, a rotor and a lower stator. The upper stator is buckled upside down on the lower stator. The upper stator and the lower stator face each other to form a cavity. The rotor is suspended in this cavity. The lower stator base The lower stator induction rotating coil group and the lower stator side electrodes are distributed on the front of the lower stator, the lower stator cross separation structure and the lower stator permanent magnet block are arranged on the back, and the lower stator permanent magnets are adhered to the four areas separated by the lower stator cross separation structure. Magnetic block; the upper stator induction rotating coil group is distributed on the front of the upper stator base, the upper stator cross separation structure and the upper stator permanent magnet block are arranged on the back, and the four areas separated by the upper stator cross separation structure are adhered to Stator permanent magnet block. The invention reduces the starting-up process and the difficulty of starting-up control of the rotor, thereby reducing the process complexity and control difficulty, and can simultaneously detect the acceleration of multiple degrees of freedom.
Description
technical field [0001] The invention relates to a miniature gyroscope in the field of micro-electromechanical technology, in particular to a dual-mode inverse magnetic rotor induction rotating micro-gyroscope. Background technique [0002] As we all know, micro-mechanical inertial instruments include micro-inertial sensors (micro-accelerometers and micro-gyroscopes) and micro-inertial measurement units (MIMUs, composed of micro-inertial sensors, micro-control circuits, etc.), which are an important class of micro-electromechanical systems. As an inertial device, the micro-gyroscope is one of the important micro-electromechanical system devices. It is used in military and civilian applications such as tactical missiles, inertial navigation, micro-satellites, virtual reality, robot control, biomedicine, car safety, and camera stability. , Inertial mouse and other electronic consumer products have a wide range of application prospects, so they have been widely valued by countri...
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IPC IPC(8): G01C19/02G01C19/24
Inventor 张卫平张忠榕陈文元刘武
Owner SHANGHAI JIAO TONG UNIV