Isolated Data Acquisition Card

A technology of data acquisition card and data acquisition module, applied in the direction of data acquisition and recording, can solve problems such as damage to the acquisition system, and achieve the effect of avoiding signal loss, realizing isolated acquisition, and low cost.

Active Publication Date: 2015-11-25
NAT INSTR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the common data acquisition card does not have the ability of electrical isolation, it may introduce interference such as the common mode voltage of the measured system, thereby causing damage to the acquisition system

Method used

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the ar...

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Abstract

The invention provides a multifunctional isolated data acquisition card, which comprises a plurality of data acquisition modules, a slave logic control module, a master logic control module and an isolating module; wherein the data acquisition modules are respectively used for acquisition and / or output of different types of data of a system to be measured; the slave logic control module is connected with the data acquisition modules and is used for logic control on the data acquisition modules; the master logic control module is used for communication with the slave logic control module and an upper computer bus on a host side; the isolating module is connected between the slave logic control module and the master logic control module and is used for electrical isolation; and the master logic control module is also connected with a bus bridge module, and the bus bridge module is used for realizing communication between the master logic control module and the upper computer bus. By adopting the multifunctional isolated data acquisition card, isolated acquisition of various types of data can be realized on a single data acquisition card, and the cost can be reduced.

Description

technical field [0001] The invention relates to data acquisition technology, in particular to an isolated data acquisition card. Background technique [0002] Data acquisition cards are used to collect various types of data. With the rapid development of modern equipment towards digitization and informatization, data acquisition cards have been more and more widely used in various fields. [0003] During use, one end of the data acquisition card is connected to the measured system, and the other end is connected to the acquisition system for data acquisition. Since the common data acquisition card does not have the ability of electrical isolation, it may introduce interference such as the common mode voltage of the measured system, thereby causing damage to the acquisition system. Contents of the invention [0004] A brief overview of the invention is given below in order to provide a basic understanding of some aspects of the invention. It should be understood that this...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/40
Inventor 马恩云赵永杰张斌朱良孙娴许文靓段伟亮
Owner NAT INSTR CORP
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