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Electromagnetic thrust of linear motor and thrust fluctuation test apparatus

A technology of linear motors and thrust fluctuations, applied in the direction of motor generator testing, measuring devices, force/torque/power measuring instruments, etc., can solve problems such as inability to overcome the influence of friction, achieve simple structure, accurate measurement results, and meet test requirements required effect

Inactive Publication Date: 2012-02-15
SOUTHEAST UNIV +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the deficiency that the above-mentioned existing measuring devices cannot overcome the influence of friction force, the purpose of the present invention is to provide a linear motor electromagnetic thrust and thrust fluctuation testing device, which has a simple structure and high testing accuracy

Method used

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  • Electromagnetic thrust of linear motor and thrust fluctuation test apparatus
  • Electromagnetic thrust of linear motor and thrust fluctuation test apparatus
  • Electromagnetic thrust of linear motor and thrust fluctuation test apparatus

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Embodiment Construction

[0017] A linear motor electromagnetic thrust and thrust fluctuation test device according to the present invention, see figure 2 and image 3 . The device comprises a load linear motor 1, a tension sensor 2, a grating ruler 3 and a data processor 4, one end of the tension sensor 2 is connected to the load linear motor 1, and the other end of the tension sensor 2 is connected to the linear motor 5 to be measured; the tension sensor 2 The signal output end of the signal is connected to the data processor 4; the load linear motor 1 and the linear motor 5 to be tested are both arranged on the grating scale 3; the load linear motor 1 is a linear motor with magnetic levitation and no cogging.

[0018] The data processor 4 includes a data acquisition module 41 and a controller 42 , the data acquisition module 41 receives the signal of the tension sensor 2 and performs FFT analysis, and transmits the signal to the controller 42 to drive and control the load linear motor 1 . The con...

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Abstract

The invention discloses an electromagnetic thrust of a linear motor and a thrust fluctuation test apparatus. The apparatus comprises a load linear motor, a drawing force transducer, a raster ruler and a data processor. Besides, one end of the drawing force transducer is connected with the load linear motor and the other end of the drawing force transducer is connected with a to-be-detected linear motor; a signal output terminal of the drawing force transducer is connected with the data processor; the load linear motor and the to-be-detected linear motor are arranged on the raster ruler; and the load linear motor is a gullet-free linear motor with magnetic suspension. According to the invention, the structure is simple and the testing precision is high; therefore, the apparatus is suitable for an electromagnetic thrust of a linear motor and a thrust fluctuation test; and the apparatus can also be applied to a test on a dynamic performance of a motor.

Description

technical field [0001] The invention relates to a high-precision testing device. Specifically, it is a testing device for testing high-precision linear motor electromagnetic thrust and thrust fluctuation. Background technique [0002] A linear motor is a power device that directly converts electrical energy into mechanical energy for linear motion. Using a linear motor is to obtain the electromagnetic thrust provided by the motor, so the dynamic thrust is one of the key detection contents of the linear motor; the thrust fluctuation is the cause of the vibration and noise of the motor, especially when it is running at a low speed, it may also cause resonance. Thereby deteriorating its servo operation characteristics. All in all, thrust fluctuations can have many adverse effects. Therefore, the test of thrust fluctuation is the main content of analyzing and researching the operating characteristics and performance of the motor. [0003] Commonly used linear motor electroma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G01R31/34
Inventor 余海涛孙国平朱嘉东冯四平胡敏强朱斌
Owner SOUTHEAST UNIV
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