Radial/axial six-position integrated electric eddy transducer

An eddy current sensor and displacement sensor technology, which is applied to instruments, electric devices, electromagnetic means, etc., can solve the problem of large volume, weight and power consumption of magnetic levitation control torque gyroscope, large volume, weight and power consumption, and not compact structure. and other issues to achieve the effect of saving power consumption, increasing volume and power consumption, and reducing volume and weight

Inactive Publication Date: 2006-07-12
BEIHANG UNIV
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Problems solved by technology

In the five-degree-of-freedom magnetic levitation flywheel and the magnetic levitation control torque gyroscope, it is usually necessary to detect the displacement signals of five degrees of freedom. If an eddy current sensor is used, each degree of freedom needs a non-contact displacement sensor. In order to improve the accuracy of the sensor, it is usually adopted Differential structure, at this time each magnetic levitation system requires multiple eddy current sensors, an

Method used

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  • Radial/axial six-position integrated electric eddy transducer
  • Radial/axial six-position integrated electric eddy transducer
  • Radial/axial six-position integrated electric eddy transducer

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Embodiment Construction

[0014] Such as Figure 1 ~ Figure 4 As shown, six displacement sensor probes T1~T6 and six preamplifiers form an integrated electric turbine sensor. The entire electric turbine sensor can be an external structure for detection, that is, the electric turbine sensor is located inside the detection body, and the four radial displacements The sensor probes T1~T4 are evenly distributed on the outer circumference of the sensor seat, and the two displacement sensor probes T5 and T6 are located on the end face of the sensor seat, such as figure 1 with figure 2 As shown; it can also be a built-in structure for detection, that is, the electric turbine sensor is located outside the detection body, four radial displacement sensor probes T1~T4 are evenly distributed on the inner circumference of the sensor seat, and two displacement sensor probes T5 and T6 are located on the sensor The end face of the seat, such as image 3 with Figure 4 shown. Whether it is to detect the built-in st...

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Abstract

This invention relates to a radial and axial six digits integral electric vortex sensor, which characterized in that it is composed of the six digits integral electric vortex pick-off and the probe, wherein between the sensor probe and the probe there forms the radial probe space and the axial probe space, and the said sensor has six channels, whose probes are integrated in a sensor seat with the preamplifier, and the sensor is composed of the radial displacement probe, axial displacement probe, preamplifier, and power information output line, wherein the four radial probes probe the X direction and Y direction displacement information separately, and the axial probes probe the Z direction displacement information, the preamplifier and the probes of the six channels are integrated, which can be designed into the radial and axial six digits integral electric vortex sensor whose probe interfaces are external according to the structure demand. This invention improves the probe precision and stabilization, and reduces the volume and weight of the sensor greatly.

Description

technical field [0001] The invention relates to a non-contact eddy current sensor, especially a multi-bit integrated eddy current sensor, which can be used as a non-contact sensor with strict requirements on the volume, weight and precision of the system, such as a magnetic levitation flywheel, a magnetic levitation control torque gyroscope, etc. Motion detector. Background technique [0002] Magnetic bearings have the advantages of no mechanical friction and wear, no need for lubrication and maintenance, and allow high-speed rotation of the rotor. Therefore, they are used in satellite attitude control systems to support flywheels and control moment gyros, instead of mechanical bearings, to eliminate mechanical friction. , to increase the rotational speed of the rotor, thereby improving the control accuracy of the flywheel and the control moment gyroscope, prolonging the service life of the attitude control system and reducing the power consumption of the system. In the fiv...

Claims

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Application Information

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IPC IPC(8): G01B7/02
Inventor 房建成韩邦成刘刚
Owner BEIHANG UNIV
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