Suspension gap sensor for medium-low-speed maglev train

A technology of gap sensor and maglev train, which is applied in the direction of instruments, using electromagnetic means, and the casing of measuring devices, etc. It can solve the problems of low performance such as sealing, high and low temperature resistance and corrosion resistance, high sensor maintenance cost, and sensor return to factory for repair. It achieves the effects of good replaceability, improved anti-interference ability, and easy maintenance in the later stage

Active Publication Date: 2011-06-22
NAT UNIV OF DEFENSE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Low sealing performance, high and low temperature resistance, corrosion resistance, etc., unable to meet the requirements of various special environments
[0006] 3. The sensor probe is easily damaged under harsh working conditions, and collision and vibration may cause the probe to break or fall off;
[0007] 4. Both the sensor signal processing board and the probe are fixed, and the parameters of the corresponding processing circuit of different probes are also different. During use, once a fault occurs somewhere, the entire sensor must be returned to the factory for repair, and the maintenance cost of the sensor is high

Method used

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  • Suspension gap sensor for medium-low-speed maglev train
  • Suspension gap sensor for medium-low-speed maglev train
  • Suspension gap sensor for medium-low-speed maglev train

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Embodiment Construction

[0038] Such as figure 1 As shown, the suspension gap sensor of the medium-low speed maglev train of the embodiment of the present invention comprises housing 1, control circuit board 2 and resonant circuit 32, and housing 1 is provided with the coil circuit board 3 that has printed circuit board coil 31, and coil circuit Board 3 is connected to control circuit board 2 .

[0039] In this embodiment, the control circuit board 2 is provided with a first interface 22 , and the casing 1 is provided with a second interface 33 connected to the coil circuit board 3 , and the first interface 22 and the second interface 33 are plugged together. The first interface 22 and the second interface 33 are receptacles and plugs of the same type D connector, and through the positioning of the positioning groove 12 , the first interface 22 and the second interface 33 can be directly paired and connected.

[0040] Such as figure 2As shown, the housing 1 is a metal housing, which can effectivel...

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Abstract

The invention discloses a suspension gap sensor for a medium-low-speed maglev train. The suspension gap sensor comprises a shell (1), a control circuit board (2) and a resonant circuit (32), wherein the shell (1) is provided with a coil circuit board (3) which is equipped with a printed circuit board coil (31), and the coil circuit board (3) is connected with the control circuit board (2). The suspension gap sensor has the advantages of good interference resistance, firmness, reliability, compact structure, high integration, excellent waterproof and dustproof capabilities, and rapidness and convenience for maintenance.

Description

technical field [0001] The invention mainly relates to the field of maglev trains, in particular to a suspension gap sensor suitable for medium and low speed maglev trains. Background technique [0002] The medium and low speed maglev train is a vehicle system that relies on electromagnetic force to achieve non-contact levitation. The medium and low speed maglev train controls the levitation force by controlling the excitation current of the levitation electromagnet, so as to achieve stable levitation under different gap values. Medium and low-speed maglev trains use suspension gap sensors to obtain the suspension gap between the train and the track. Accurate and fast acquisition of the suspension gap value is a necessary condition for achieving stable suspension of medium and low-speed maglev trains. [0003] At present, the suspension gap sensor is generally an eddy current sensor that outputs analog quantities. The advantages of the eddy current sensor are low cost, no co...

Claims

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Application Information

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IPC IPC(8): G01B7/14G01D11/24G01D11/26
Inventor 吴峻曾晓荣周文武李中秀张兴华
Owner NAT UNIV OF DEFENSE TECH
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