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Double isolation device and method for multipath AD acquisition

An isolation device and dual technology, applied in the field of measurement and control, can solve the problem of not taking into account, and achieve the effects of reducing crosstalk, improving data accuracy and environmental adaptability, reducing surge risk and electromagnetic protection.

Inactive Publication Date: 2016-04-13
HUBEI SANJIANG AEROSPACE HONGFENG CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the traditional isolation system design, only the analog isolation and digital isolation are designed in isolation, without considering the adverse effects of another non-isolated signal when only one isolation design is performed

Method used

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  • Double isolation device and method for multipath AD acquisition

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Embodiment Construction

[0021] 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0022] The invention provides a double isolation device and method for multi-channel AD collection, which can realize safe and reliable multi-channel AD collection. And through the control of MCU or other controllers, multi-channel AD acquisition in different modes can be realized to meet different needs.

[0023] The present invention is based on the comprehensive application of analog isolati...

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Abstract

The invention discloses a double isolation device and method for multipath AD acquisition and belongs to the technical field of measurement and control. In the prior art, AD acquisition is realized with analog signal isolation or digital signal isolation being considered independently. The provided double isolation device isolates analog quantity of the input end of an AD convertor, so that influence of external noise is reduced, and input precision of the analog signal is improved; through digital isolation of the output end and control signals, safety of the AD acquisition is ensured; and the device has obviously-high reliability, highly-safe electric isolation, simple structure, flexible use, wide application range and higher application value.

Description

technical field [0001] The invention belongs to the technical field of measurement and control, and more specifically relates to a double isolation device and method applied to multi-channel AD acquisition. Background technique [0002] In many industrial test control systems such as automatic control, automatic detection, and computer data acquisition and testing, the acquisition of on-site analog signals often plays an important role in system design. In the design of the AD acquisition module, for the accuracy of data acquisition and the security of the system, especially in national defense military equipment with stricter requirements on environmental adaptability and data accuracy, it is effective to isolate AD acquisition Methods. However, in the traditional isolation system design, only analog isolation and digital isolation are designed in isolation, without considering the adverse effects of another non-isolated signal when only one isolation design is performed. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25462
Inventor 郭昊张军波陈薇陈余飞陈航殷洪海
Owner HUBEI SANJIANG AEROSPACE HONGFENG CONTROL
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