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Ultra-multichannel full-synchronous data acquisition system

A data acquisition system and data acquisition card technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of low synchronization accuracy of data acquisition, and achieve high repeatability, compatibility advantages, and low cost. Effect

Active Publication Date: 2019-11-22
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to solve the problems of multi-channel data acquisition in a single data acquisition device and low synchronization accuracy of data acquisition among multiple data acquisition devices in the prior art. The invention provides a super multi-channel fully synchronous data acquisition system

Method used

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0056] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0057] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0058] see figure 1 and figure 2 Describe the present embodiment, the super multi-channel fully synchron...

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Abstract

The invention relates to an ultra-multichannel full-synchronous data acquisition system, belongs to the field of signal acquisition and specifically relates to a test task related to multichannel dynamic signal acquisition. The problem of low synchronous precision of multichannel data acquisition in the single data acquisition equipment and data acquisition among multiple sets of data acquisitionequipment in the prior art is solved. According to the invention, clock signals and sampling trigger signals on all acquisition channels between different data acquisition cards are synchronous, so that the data acquisition synchronization of all channels between different data acquisition cards and the data acquisition synchronization of all channels on the same data acquisition card are realized, and the data acquisition synchronization precision is improved. The ultra-multichannel full-synchronous data acquisition system is mainly used for acquiring electrical nerve signal data, wind tunnelsensor data, microphone array data and the like.

Description

technical field [0001] The invention belongs to the field of signal acquisition, and in particular relates to testing tasks related to multi-channel dynamic signal acquisition, such as electrical nerve signal data acquisition, wind tunnel sensor data acquisition, and microphone array data acquisition. Background technique [0002] Whether it is the development of natural science or the application of engineering projects, it is inseparable from the precise measurement of various physical quantities. With the advancement of science and technology and the expansion of the fields involved, the test tasks in the new environment have become complex and diverse, which also requires more targeted and specialized test equipment in many special applications. The super multi-channel fully synchronous data acquisition system proposed in this patent can be classified as such equipment. It is characterized by dozens or even hundreds of data input channels, and can fully guarantee high-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 乔家庆王振宇付平郭兆源吴家顺王华辰孙少伟郭志浩
Owner HARBIN INST OF TECH
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