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Digital oscilloscope and data processing method thereof

A digital oscilloscope and data processing technology, applied in the direction of digital variable display, etc., can solve the problem of low waveform refresh rate of digital oscilloscope

Inactive Publication Date: 2010-03-10
秦轲 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, it is necessary to provide a digital oscilloscope that can improve the waveform refresh rate for the problem that the waveform refresh rate of the traditional digital oscilloscope is not high.

Method used

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  • Digital oscilloscope and data processing method thereof
  • Digital oscilloscope and data processing method thereof
  • Digital oscilloscope and data processing method thereof

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Embodiment Construction

[0019] figure 1 is a schematic diagram of a digital oscilloscope. The digital oscilloscope includes a data acquisition module, a data processing module, a storage module, a video memory, and a display module.

[0020] The data acquisition module includes multiple analog-to-digital converters. Each analog-to-digital converter samples an analog signal in real time at a specific frequency and converts the analog signal into a digital signal. The sampling rate of the data acquisition module is generally very high. For example, the amount of data sampled by an analog-to-digital converter within 10ns is 2B. When the number of analog-to-digital converters in the data acquisition module is 5, the sampling rate is 1GB / s.

[0021] The storage module generally adopts a Static Random Access Memory (SRAM). The SRAM preferably adopts a first-in-first-out (First-In First-Out, FIFO) storage method.

[0022] The data processing module is used to temporarily store the digital signal outpu...

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Abstract

The invention relates to a digital oscilloscope and a data processing method thereof. The digital oscilloscope comprises a data acquisition module, a data processing module, a memory module, a local video memory and a display module; the data processing module is used for temporarily storing the digital signal output by the data acquisition module in the memory module, judging whether the data volume temporarily stored by the memory module equals to a preset value, reading the temporarily stored data from the memory module and carrying out waveform processing when the data volume temporarily stored by the memory module equals to the preset value, reading waveform data from the local video memory and controlling the display module to display the waveform. The data processing method of the digital oscilloscope comprises the following steps: S1, acquiring data; S2, temporarily storing data; S3, judging whether the temporarily stored data volume equals to the preset value, if yes, executing S4, otherwise, executing S1; S4, reading the temporarily stored data and carrying out waveform processing; and S5, displaying waveform. The digital oscilloscope and the data processing method thereof improve waveform refresh rate.

Description

technical field [0001] The invention relates to a digital oscilloscope and a data processing method thereof. Background technique [0002] Digital oscilloscope is a kind of electrical signal testing instrument, which is used to measure, observe, record and analyze various instantaneous physical electrical signal changes, and display the changes of electrical signals on the time axis in the form of waveforms on the display screen. The number of times a digital oscilloscope captures signals per second is the waveform capture rate, also known as the waveform refresh rate, and the unit is the number of waveforms per second (wfms / s). The higher the waveform refresh rate of the digital oscilloscope, the higher the probability of capturing occasional random events, and the more it can reproduce the real-time real changes of microscopic physical electrical signals. [0003] Traditional digital oscilloscopes collect a waveform data, then process and display a waveform data. Limited...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R13/02
Inventor 秦轲邵海涛赵亚锋
Owner 秦轲
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