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Digital type electron oscillograph with synchronous working structure

A technology of synchronous digital and synchronous work, applied in the direction of digital variable display, etc., can solve the problems of small measurement time/working time ratio and high cost, and achieve the effect of low cost and simple operation circuit

Inactive Publication Date: 2007-07-25
北京飞腾三环电子科技有限公司
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Problems solved by technology

[0005] In an asynchronous digital oscilloscope, since the time used for calculation and display is usually longer than the sampling time, when the existing asynchronous digital oscilloscope works in real-time display mode, only a part of the entire working time is used to measure the signal under test, while the other part is Time is not measured on the signal under test with a measurement time / working time ratio less than 1
[0006] At the same time, because the existing asynchronous digital oscilloscope must use sampling memory and more complex computing circuits, the cost is relatively high

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  • Digital type electron oscillograph with synchronous working structure

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[0039] This mode is a non-full-time measurement mode of a synchronous digital oscilloscope, as shown in FIG. 1 , the working process of the non-full-time measurement mode of a synchronous digital oscilloscope described in the present invention is as follows.

[0040] The user sets the analog signal trigger phase of the synchronous digital oscilloscope and the column drive frequency and other related working parameters through 7. At this time, the analog / digital (A / D) conversion frequency is the same as the column drive frequency, and the column drive range is a fixed value. The amount is equal to 1, and the phase trigger signal T issued by 6 is valid. When working, 4 waits for the corresponding trigger signal T. Whenever T appears, 4 starts a working process with the number of measurement cycles equal to the column driving range, and then waits for T again. When T appears again, 4 starts the same again. measurement process. In each measurement process, the analog signal Az is...

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Abstract

A digital electronic oscilloscope with synchronous operation structure is featured as enabling said oscilloscope to finalize A / D conversion, data operation and waveform display simultaneously at complete operation time for eliminating measurement blind domain of time and for not only displaying out waveform of low frequency analog signal but also displaying out waveform of high frequency analog signal.

Description

technical field [0001] The present invention relates to a digital electronic oscilloscope (hereinafter referred to as "digital oscilloscope"). Background technique [0002] Existing digital oscilloscopes first perform "sampling" during work, and continuously store the measured signal data that has undergone "analog / digital" (A / D) conversion, and then perform operations on the sampled data after the "sampling" process is over. Processing, after the operation is completed, the generated waveform image is sent to the monitor for display. Therefore, a complete working process of an existing digital oscilloscope is composed of three sequential sub-processes carried out in time-sharing, namely: [0003] Sampling→Computation→Display [0004] In this paper, this kind of digital oscilloscope that works sequentially and time-sharing is called "digital oscilloscope with asynchronous working structure" (hereinafter referred to as "asynchronous digital oscilloscope"). [0005] In an a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R13/02
Inventor 徐建
Owner 北京飞腾三环电子科技有限公司