Magnetic precision constraint type magnetic focusing torque sensor and torque calculation method using same
A torque sensor and magnetic focusing technology, applied in the sensor field, can solve the problems of difficult to achieve focusing shape, complex structure design, complex torque algorithm, etc., and achieve the effect of simple algorithm and high precision
Pending Publication Date: 2020-04-07
NORTHEAST FORESTRY UNIVERSITY
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Problems solved by technology
The magnetic field focusing effect of magnetic focusing is poor, and the existing technology is difficult to achieve the desired focusing shape, and the magnetic field needs to be precisely constrained
Existing sensors for non-contact speed measurement are based on the principle of eddy currents, which are nonlinear, and require complex structural design to extract linear signals
Moreover, there are alternating magnetic fields of the excitation coil and eddy current fields of the rotor in the inner space of the sensor, so a complex decoupling structure needs to be designed
Method used
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[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0035] see Figure 1-6 Describe this embodiment, a magnetically precise constrained magnetic focus torque sensor, which includes a rotating shaft 1 and a collection mechanism, the two ends of the rotating shaft 1 are the shaft input end 2 and the shaft output end 3 respectively, and the collection mechanism is respectively Set at the shaft input end 2 and the shaft output end 3, the collection mechanism includes a receiving mechanism 4, a rotor circuit board 5, an excitation coil 6, a magnetic conductor 7 and a casing 8, and the receiving mechanism 4 is printed on the rotor flexible circuit On the board, a signal processing circuit is printed on the rotor flexible circuit board, and the receiving mechanism 4 is a double-layer board structure, and a receiving coil A and a receivi...
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The invention provides a magnetic precision constraint type magnetic focusing torque sensor and a torque calculation method using the same, belongs to the technical field of sensors, and solves the problems that an existing magnetic focusing sensor is complex in structure and torque calculation mode, and a magnetic field is difficult to focus into a set shape. The sensor comprises a rotating shaftand collecting mechanisms, two ends of the rotating shaft are respectively a shaft input end and a shaft output end; the collecting mechanisms are arranged at the shaft input end and the shaft outputend respectively; each collecting mechanism comprises a receiving mechanism, a rotor circuit board, an exciting coil, a magnetizer and a housing. The receiving mechanisms are printed on the rotor flexible circuit boards; the receiving mechanisms are of a double-layer plate structure, the exciting coils are in a rectangular bent shape, the exciting coils are printed on the stator flexible circuitboards, a fixing frame and a handle are arranged on each housing, the magnetizers are arranged in the fixing frames, and the magnetizers are located between the exciting coils and the rotating shaft.The magnetic precision constraint type magnetic focusing torque sensor and the torque calculation method using the same are mainly used for the sensor based on the magnetic focusing principle and thetorque calculation method.
Description
technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a magnetic precision constrained magnetic focus torque sensor and a torque calculation method. Background technique [0002] A sensor is a detection device that can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the needs of information transmission, processing, storage, and display. , recording and control requirements. With the advantages of strong anti-interference ability, high signal strength, no magnetic leakage, and high energy transmission efficiency, magnetic focusing technology has developed rapidly in the fields of bioelectromagnetics and geological surveying. [0003] The magnetic field of the existing sensor based on the principle of magnetic focusing is divergent, and the magnetic field needs to be constrained to obtain better focu...
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Login to View More IPC IPC(8): G01L3/10
CPCG01L3/105
Inventor 李志鹏张超邱枫王博男于东洋
Owner NORTHEAST FORESTRY UNIVERSITY