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Speed measurement device and method based on electromagnetic induction

A speed measurement and magnetic flux technology, applied in the field of measurement, can solve the problems of high environmental requirements, complex measurement solutions, and high equipment costs, and achieve the effect of low cost, reduced accuracy and measurement environment requirements, and low cost.

Active Publication Date: 2017-08-11
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] In view of the above problems, the present invention provides a speed measurement device and method based on the principle of electromagnetic induction, aiming to solve the technical problems of high equipment cost, complex measurement scheme and high environmental requirements in the existing speed measurement device in the prior art

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  • Speed measurement device and method based on electromagnetic induction
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  • Speed measurement device and method based on electromagnetic induction

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] Such as figure 1 As shown, the speed measuring device based on electromagnetic induction provided by the present invention includes an induction unit 1, and the induction unit 1 includes a transverse induction conductor array 11 and a longitudinal induction conductor array 12, and the transverse induction conductor array 11 is a plurality of transverse induction conductor arrays arranged in parallel on the same plane. The rectangular conductor, the longitudinal induction conductor array 12 is a plurality of longitudinal rectangular conductors arranged in parallel on the same plane, the trans...

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Abstract

The invention discloses a speed measurement device and method based on electromagnetic induction. The device comprises a magnetic field unit, an induction unit, and a signal processing unit. The magnetic field unit is installed on a measured object, and an AC voltage signal is generated in the induction unit when the measured object moves nearby the induction unit. The signal processing unit collects the AC voltage signal outputted by the induction unit, carries out the calculation of the integration of the AC voltage signal, obtains a magnetic flux curve, obtains the displacement-time information of the measured object according to zero crossing point time of the magnetic flux curve and the position of the induction unit, and obtains the speed of the measured object. According to the invention, the device enables the displacement information to be converted into an electric signal, achieves the high-speed measurement through the detection of the electric signal, is simple in implementation scheme, is low in construction cost, and achieves the measurement of the displacement and speed in a microsecond.

Description

technical field [0001] The invention belongs to the technical field of measurement, and more specifically relates to a speed measurement device and method based on electromagnetic induction. Background technique [0002] The speed measurement of moving or deformed objects is widely used in industrial production, scientific research and other fields. With the continuous improvement of measurement objects and environmental requirements, high-speed measurement has become an important research topic. At present, in terms of high-speed measurement, the main methods used are optical methods, measurement methods based on high-speed cameras, and acoustic methods based on the Doppler effect. [0003] The above measurement methods all have the problems of high equipment cost, complex measurement schemes, and high requirements for the measurement environment, which directly restrict their application and research and development in related fields. Contents of the invention [0004]...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/54G01P3/481
CPCG01P3/481G01P3/54
Inventor 韩小涛吴佳玮李亮
Owner HUAZHONG UNIV OF SCI & TECH
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