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Oscilloscope capable of being triggered through rolling

A technology of oscilloscope and display, applied in the direction of digital variable display, etc., can solve problems such as not supporting triggering

Active Publication Date: 2017-12-26
SHENZHEN CITY SIGLENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because in roll mode, the trigger detection and trigger correction modules do not work, there is no trigger detection mechanism, so the existing oscilloscope device does not support triggering in roll mode

Method used

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  • Oscilloscope capable of being triggered through rolling
  • Oscilloscope capable of being triggered through rolling
  • Oscilloscope capable of being triggered through rolling

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Experimental program
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Embodiment Construction

[0025] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

[0026] Such as figure 2 , image 3 As shown, the scrollable triggering oscilloscope of the present application, one embodiment thereof, includes an AD converter, a waveform processor, a display, a CPU and an external memory. The waveform signal is converted by the AD converter and then enters the waveform processor for processing and then displayed on the display. The CPU is used to obtain the offset data through the waveform processor, and the external memory is used to store the collected waveform data. The waveform processor includes A data link and a digital trigger link, the data link is used to store data and send it to the display, the digital trigger link is used for trigger detection and processing, and the data link includes a data delay module. The data delay module is used to make the trigger detection of the trig...

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PUM

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Abstract

The invention discloses an oscilloscope capable of being triggered through rolling, which comprises an AD converter, a waveform processor, a display, an external memory, and a CPU, wherein the waveform processor comprises a data link and a digital triggering link; and the data link comprises a data delay module for enabling triggering detection of the triggering link to be completed before storage of the data link in a rolling mode. As the acquired data need to be displayed in the case of storage in the rolling mode, in a condition of setting a pre-triggering depth to be close to a one-frame waveform storage depth, once triggering is detected, the one-frame waveform can be fully acquired soon, after the triggering detection module detects the triggering through the data delay module, data storage meeting a triggering condition arrives, the amount of data which need to be stored to reach one-frame accurate waveform display is controlled, the phenomenon that triggering detection is slower than display is avoided, and the phenomenon that the seen waveform already meets triggering but the waveform is displayed to already pass a triggering position can also be avoided.

Description

technical field [0001] The present application relates to the field of test and measurement, in particular to an oscilloscope capable of scrolling triggers. Background technique [0002] Existing acquisition modes of an oscilloscope include a Y-T mode, a sweep mode and a scroll mode. [0003] Y-T mode is one of the most common modes for oscilloscope acquisition and display. When one frame is collected, it will be displayed, and the waveform will be displayed by frame. In sweep mode, the waveform is displayed from left to right, and the waveform display is updated when the pre-trigger is full and the trigger condition is met or after a timeout, and the latest waveform is placed on the right of the old waveform data. One of the biggest advantages of the scrolling mode is that there is no dead time in the acquisition. You can use this acquisition display mode to observe the change track of the waveform in real time; the waveform is displayed from right to left, and the latest ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R13/02
Inventor 周旭鑫李振军吴乾科
Owner SHENZHEN CITY SIGLENT TECH