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Digital oscillograph and its waveshape displaying method

A digital oscilloscope, waveform display technology, applied in the direction of digital variable/waveform display, digital variable display, instruments, etc., can solve the problems of waveform disorder, data discontinuity, unable to correctly reflect the real-time state of the waveform, etc., to maintain continuity , to achieve the effect of perfect transition and unified data collection

Active Publication Date: 2010-05-12
RIGOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the digital oscilloscope system is running, if the horizontal time base scale or displacement is changed, the data discontinuity will be caused by the change of the sampling rate or the trigger point, causing the waveform to appear momentary disorder, which cannot correctly reflect the real-time waveform. state

Method used

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  • Digital oscillograph and its waveshape displaying method
  • Digital oscillograph and its waveshape displaying method
  • Digital oscillograph and its waveshape displaying method

Examples

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Effect test

Embodiment 1

[0026] The invention provides a digital oscilloscope waveform display method, such as image 3 The following steps are shown: the waveform data acquisition step, the display data of the display buffer before changing the horizontal time base setting is used as the data source of the display data when the horizontal time base setting is changed; the waveform data scaling step, the previous display on the screen The display data of the digital oscilloscope is zoomed and processed; the waveform data display step is to copy the zoomed waveform data to the waveform display buffer in the stop state of the digital oscilloscope system, and display the waveform data in the waveform display buffer in the stop state of the digital oscilloscope system in the on the screen.

[0027] The method of the invention is processed on the basis of combining the data collected by the oscilloscope and the characteristics of waveform display, and can accurately reflect the waveform data at the moment ...

Embodiment 2

[0049] The invention provides a digital oscilloscope, such as Figure 5 The shown digital oscilloscope includes: an analog front end, an analog-to-digital converter, a control processor, a man-machine interface unit, a display, and a power supply; it is characterized in that it also includes: a waveform display processing device; wherein, DSP can be used as the control processor , using the keyboard as the man-machine interface unit, using the LCD as the display.

[0050] The analog front end is connected to the DSP through an analog-to-digital converter, and the DSP is connected to the keyboard and the LCD display respectively; the waveform display processing device can be placed in the DSP as a program, or connected to the DSP as a logic circuit.

[0051] The keyboard receives instructions for changing the horizontal time base setting; the waveform data acquisition unit of the waveform display processing device is used to use the display data of the display buffer before cha...

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Abstract

The invention provides a display method for waveform of digital oscillograph and the digital oscillograph. It includes: wave form data collecting process or device to make the display data of displaybuffer before changing the horizontal timebase set as the data source of display data in changing the horizontal timebase; the waveform data zoom process or device is to zoom the display data on screen last time; waveform display process or device is to copy the zoomed data to the waveform display buffer in the state of digital oscillograph system stop and display it on screen. The invention is todisplay and treat the waveform data in changing the horizontal timebase by combining the collect data and waveform display of digital oscillograph to reflect the waveform data in time of changing thehorizontal timebase.

Description

technical field [0001] The invention relates to digital oscilloscope technology, in particular to the waveform display processing technology of the digital oscilloscope when changing the system horizontal time base, specifically a digital oscilloscope waveform display method and the digital oscilloscope. Background technique [0002] In the prior art, the overall architecture of a digital oscilloscope generally includes (such as figure 1 shown): analog front end, analog-to-digital converter, control processor with CPU, memory and logic circuits, human-machine interface, display, and power supply. Among them, the analog front-end collects the measured signal through the probe, and transmits the collected analog signal to the analog-to-digital converter. The analog-to-digital converter converts the analog signal into a digital signal and transmits it to the control processor. Under the control of the control processor, Display digital signals. [0003] The digital oscillosco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R13/02G01R13/00
Inventor 王悦王铁军李维森
Owner RIGOL
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