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Oscilloscope with higher wave-form refresh rate

A waveform refresh rate, oscilloscope technology, applied in digital variable/waveform display, instruments, measuring devices, etc., can solve problems such as slow refresh rate, achieve flexible configuration, improve waveform capture rate, and speed up waveform refresh rate.

Active Publication Date: 2010-06-09
RIGOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Since the CPU processor needs to process the data into an image dot matrix and control the LCD screen control chip when displaying, this serial processing method causes a bottleneck effect of display refresh, resulting in a slow refresh rate, roughly 60 times / second

Method used

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  • Oscilloscope with higher wave-form refresh rate
  • Oscilloscope with higher wave-form refresh rate
  • Oscilloscope with higher wave-form refresh rate

Examples

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Embodiment Construction

[0033] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0034] Such as image 3 As shown, the schematic diagram of the specific embodiment of the present invention includes: input amplification module, A / D conversion module, waveform processing module, CPU processor, storage module, SDRAM video memory, programmable logic device FPGA, liquid crystal screen control chip, LCD display, input module.

[0035] The signal to be tested is input to the input amplification module from the signal input terminal, and after being amplified, it is sent to the A / D conversion module. The A / D conversion module collects the waveform of the signal, converts it into a digital signal, and sends it to the waveform processing module. The waveform processing module processes the collected waveform signals according to various waveform conditions set by the user, and sends the captured effective waveform signals to the CPU proc...

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PUM

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Abstract

The invention discloses an oscillograph, comprising: input amplifying module, A / D converting module, waveform processing module, CPU processor, memory module, display memory, and display module and characterized in that: it also comprises PLC module to control the display module to display a waveform interface; and it uses the PLC module to share image lattice data processing work for the CPU andthe work of control displaying of the liquid crystal screen and implements parallel flow processing and largely raises the control and waveform obtaining efficiency of the CPU, so as to raise the waveform refreshing and capturing rates of the whole system.

Description

technical field [0001] The invention relates to the field of an oscilloscope, in particular to the field of the waveform refresh rate of the oscilloscope. Background technique [0002] All oscilloscopes will blink. The oscilloscope captures the signal at a specific number of times per second. There will be no more measurements between these measurement points. This is the waveform capture rate, also known as the waveform refresh rate, expressed as the number of waveforms per second (wfms / s). The waveform capture rate is the speed at which the oscilloscope acquires waveforms. The waveform capture rate depends on the type and performance level of the oscilloscope and can vary widely. An oscilloscope with a high waveform capture rate will provide more important signal characteristics, and can greatly increase the probability that the oscilloscope can quickly capture transient anomalies, such as jitter, runt pulses, low-frequency interference, and transient errors. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R13/00
Inventor 王悦王铁军李维森
Owner RIGOL
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