Absolute position sensor performance detection device and method for maglev train
A technology of absolute position and maglev trains, which is applied in the direction of electromagnetic measuring devices, electric/magnetic position measuring, measuring devices, etc., and can solve problems such as the inability to simulate the reading performance of sensors
Pending Publication Date: 2021-06-01
NAT UNIV OF DEFENSE TECH +1
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Problems solved by technology
Although this method is simple and convenient, it cannot simulate the code reading performance of the sensor when the train is running at high speed, and the impact on the sensor code reading when the positioning sign board enters the U-shaped groove at different high speeds and attitudes
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[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. And the features in the embodiments can be combined with each other.
[0036] In order to better describe the present invention, before simulating the code reading process of the absolute position sensor, the code reading process of the absolute position sensor is explained in detail. In the prior art, the positioning mark board is a plastic board with a certain thickness, the middle layer is coated with copper, and coding slits representing position information are left according to certain rules. The copper (shielding layer) on the positioning sign board is divided into 5 binary areas with the same height and 4 coded slits with the same size. The width of the slit is 3mm. Each coded slit corresponds to a binary code. In t...
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The invention discloses an absolute position sensor performance detection device and method for a maglev train, and the device comprises a positioning mark plate, a code reader U-shaped groove, a detection coil controller, a detection coil installation support, a detection coil adjustment support, a simulator, and an observation computer. The positioning mark plate is arranged at the lower end of the detection coil adjusting support, and can movein the U-shaped groove of the code reader in the transverse direction, the vertical direction and the longitudinal direction through the detection coil adjustment support. The positioning mark plate comprises a detection coil and a printed circuit board, and the detection coil is composed of a plurality of sets of sub-coils and placed between a transmitting coil and a receiving coil of the absolute position sensor. The multiple sets of sub-coils are arranged on the front face and the back face of the printed circuit board according to a certain interval size, the detection coil is connected with the observation computer through the detection coil controller, and the detection coil controller is connected with each set of sub-coils in the detection coil through the high-speed analog switch. According to the invention, the performance evaluation of the absolute position sensor can be simply, accurately and conveniently realized.
Description
technical field [0001] The invention belongs to the technical field of maglev trains, and in particular relates to a performance detection device and method for an absolute position sensor of a maglev train. Background technique [0002] The absolute position sensor is an important part of the positioning and speed measurement system of the high-speed maglev train. The absolute position of the train running on the track is obtained by testing the sensor. In order to ensure the engineering testing and production of the absolute position sensor and realize the synchronous traction control and safe operation of the maglev train, it is necessary to obtain the operation status of the absolute position sensor accurately and in real time, especially the code reading information of the absolute position sensor. [0003] To ensure the accuracy of the code reading information of the absolute position sensor, first of all, before the absolute position sensor is officially installed, it...
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Login to View More IPC IPC(8): G01D18/00G01B7/00
CPCG01D18/00G01B7/003
Inventor 杨洋戴春辉龙志强苗欣韩纪昱
Owner NAT UNIV OF DEFENSE TECH