Ultra-low frequency implementation method of magneto-electric intelligent digital vibration velocity sensor

A technology of speed sensor and vibration speed, which is applied in the direction of instruments, electric devices, electromagnetic means, etc., can solve the problems of difficult mass production and high production cost, and achieve the effect of mass production, production cost reduction and manufacturing cost reduction

Inactive Publication Date: 2015-12-23
陕西中爆安全网科技有限公司
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Problems solved by technology

After this design, the circuit board needs to be adjusted according to the differences in the machine structure of different sensors. This adjustment process can only be done manually, so it is difficult to produce in batches. The accuracy is also closely related to the human factor of the operator. cost is also high

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  • Ultra-low frequency implementation method of magneto-electric intelligent digital vibration velocity sensor
  • Ultra-low frequency implementation method of magneto-electric intelligent digital vibration velocity sensor

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Embodiment Construction

[0025] 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.

[0026] refer to figure 1 ,like figure 1 As shown, a method for realizing ultra-low frequency of a magnetoelectric intelligent digital vibration velocity sensor comprises the following steps:

[0027] S1. Carry out calibration analysis on the magnetoelectric speed sensor used, and establish a mathematical model of the digital compensation method. It is required that the core of the magnetoelectric speed sensor used should be at 1Hz, and its reference speed sensitivity should be above 50mv / cm / s. At present, domestic The products of regular manufacturers can meet this requirement;

[0028] S2. When...

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Abstract

The invention discloses an ultra-low frequency implementation method of a magneto-electric intelligent digital vibration velocity sensor, which comprises the following steps: determining the sensitivity, inherent frequency, damping ratio and amplitude frequency characteristic of the sensor according to the calibration on the sensor; and then, directly realizing a compensative effect by utilizing fast Fourier transform. The ultra-low frequency implementation method of the magneto-electric intelligent digital vibration velocity sensor is a new method for widening the frequency response of the magneto-electric vibration velocity sensor, can solve the practical problems of ultra-low frequency tests in the engineering blast vibration test field, can reduce the manufacturing cost of the ultra-low frequency magneto-electric velocity sensor, and can realize the batch production of the ultra-low frequency magneto-electric velocity sensor. The magneto-electric vibration velocity sensor which is manufactured by utilizing a traditional circuit analog compensation method or adopting high-precision materials is relatively high in cost; and by the ultra-low frequency implementation method of the magneto-electric intelligent digital vibration velocity sensor, the production cost is greatly lowered, and the industrialized popularization of products is facilitated.

Description

technical field [0001] The invention belongs to the technical field of magnetoelectric speed sensor manufacturing, and in particular relates to an ultra-low frequency realization method of a magnetoelectric intelligent digital vibration speed sensor. Background technique [0002] Ultra-low frequency vibration is a common physical phenomenon. The vibration of mine derrick, shaft tower, high-rise buildings, railways, highway bridges, and dams all belongs to this category. Seismic waves are also the product of this vibration mode. This type of vibration has the characteristics of low vibration frequency (very rich frequency components below 1Hz), large amplitude (up to 10mm or more), and strong destructive power. It does not have much impact on people's daily life under normal circumstances, but once it exceeds the allowable limit, it will cause great harm to social production and life. Therefore, in the field of engineering technology, the testing and research of ultra-low fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/06
Inventor 曲广建朱振海梅比江滨张怀民徐继革涂鹏程马家武陈国强陈波
Owner 陕西中爆安全网科技有限公司
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