A Multi-channel Analog Signal Acquisition System with Automatic Compensation Function

A signal acquisition system, multi-channel simulation technology, applied in the direction of measuring devices, instruments, measuring electricity, etc., to achieve wide dynamic range, improve amplitude accuracy, and prevent mutual interference.

Active Publication Date: 2016-01-20
SANDTEK SEMICON TECH (SHANGHAI) LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of real-time acquisition of high-precision amplitude of multi-channel analog signals and precise timing when the threshold value is exceeded, the present invention provides a multi-channel analog signal acquisition system with automatic compensation function

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  • A Multi-channel Analog Signal Acquisition System with Automatic Compensation Function
  • A Multi-channel Analog Signal Acquisition System with Automatic Compensation Function

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Embodiment Construction

[0037] The architecture of the multi-channel analog signal acquisition system with automatic compensation function of the present invention will be described in detail below in conjunction with the accompanying drawings, but this does not constitute a limitation of the present invention.

[0038] A design scheme of a multi-channel analog signal acquisition system with automatic compensation function of the present invention:

[0039] According to the requirements of the multi-channel analog signal acquisition system with automatic compensation function, it can be used figure 1 The design scheme shown. Such as figure 1As shown, a single "multi-channel analog signal acquisition board with automatic compensation function" can determine the number of analog signal acquisition channels according to the design area of ​​the board. According to the PCI long card specification and the portable requirements of the PC104Plus interface board, Generally, 24 analog signals are selected f...

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Abstract

The invention provides a multi-channel analog signal acquisition system with an automatic compensation function. The multi-channel analog signal acquisition system is characterized by comprising at least one multi-channel analog signal acquisition board with an automatic compensation function, the multi-channel analog signal acquisition boards are connected into a PCI (peripheral component interconnect) bus of a computer according to PCI long card standards and PC104Plus interference boards, and each multi-channel analog signal acquisition board with the automatic compensation function comprises a multi-channel analog signal input module, a signal conditioning module, a signal isolation circuit, a nominal voltage generating module, a signal controlling and signal processing module and a PCI protocol implementation circuit. The multi-channel analog signal acquisition system with the automatic compensation function has the advantages that multi-channel analog signal parallel acquisition and threshold exceeding detection functions and the automatic compensation function can be implemented simultaneously, the multi-channel analog signal acquisition system has a configurable real-time signal amplitude detection function and an automatic amplitude value compensation function, detected threshold exceeding information can be accurately timed, and the multi-channel analog signal acquisition system can be used for analyzing influencing factors and abnormal factors during industrial production or scientific research.

Description

technical field [0001] The invention belongs to the field of data acquisition, and in particular relates to a multi-channel analog signal acquisition system with automatic compensation function. Background technique [0002] In the process of modern industrial production and scientific research, it is often necessary to record some analog signals in the process of production and research, requiring high-precision amplitude acquisition. Due to the influence of various factors, there are phenomena such as "zero drift" and "amplitude scaling" when collecting analog signals, which often require users to perform corresponding data processing after collecting data to obtain more accurate signal amplitude information. At the same time, in some applications, it is necessary to set a threshold value for some analog signals, and accurately record the analog signal exceeding the threshold value during the work process (including the process from low to high exceeding the threshold and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 胡剑凌邵雷郑攀
Owner SANDTEK SEMICON TECH (SHANGHAI) LTD
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