Oscillograph with double-capture function

An oscilloscope recorder and functional technology, which can be applied to instruments, digital variable display, digital variable/waveform display, etc., can solve problems such as inability to meet user needs, and achieve the effect of saving logic resources

Active Publication Date: 2018-11-09
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

[0003] (1) During the long-term reliability test, when the user needs to use a low sampling rate to observe the trend waveform, and at the same time needs to use a high sampling rate to capture high-speed burst phenomena, two different sampling rates are required to meet the data requirements. Capture requirements, and record the collected data for later analysis, c

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  • Oscillograph with double-capture function
  • Oscillograph with double-capture function
  • Oscillograph with double-capture function

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[0040] Example

[0041] figure 1 It is a specific implementation structure diagram of the oscilloscope recorder with dual capture function of the present invention. like figure 1 As shown, the oscilloscope recorder with dual capture function of the present invention includes an acquisition module 1, a central control module 2, a trigger module 3, a channel data selection module 4, a main waveform snapshot module 5, a main waveform buffer module 6, and a capture waveform extraction module. Point module 7, capture waveform front-end buffer and conversion module 8, memory control module 9, capture waveform back-end buffer and conversion module 10, external memory 11, host computer 12, display screen 13, of which central control module 2, trigger module 3, Channel data selection module 4, main waveform snapshot module 5, main waveform buffer module 6, captured waveform snapshot module 7, captured waveform front-end buffer and conversion module 8, memory control module 9, capture...

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Abstract

The invention discloses an oscillograph with a double-capture function. A user selects two time base gears by an upper computer; two different snap-shot coefficients are obtained by calculation and are simultaneously issued to corresponding modules; waveform data acquired and stored at a slow time base gear is used as main waveform data; waveform data obtained by carrying out acquisition and storage on the same data source at a rapid time base gear is used as capture waveform data; a main waveform and a capture waveform are simultaneously displayed by the upper computer. According to the invention, the same data source can be simultaneously captured by adopting different sampling rates according to double time base gears set by the user so as to meet the requirement of the user for diversification of the observation waveforms.

Description

technical field [0001] The invention belongs to the technical field of oscilloscope recorders, and more specifically relates to an oscilloscope recorder with dual capture functions. Background technique [0002] With the rapid development of modern electronic technology and information processing, the acquisition and display functions of modern test instruments are becoming more and more diverse, especially powerful digital oscilloscopes, which can integrate waveform acquisition, multimeter functions, signal generators, spectrum analyzers and other functions In one, and its sampling rate and bandwidth have been increased rapidly, it can measure and collect electrical signals and physical signals in many fields, and a friendly human-computer interface allows users to observe waveform changes from multiple angles, but in domestic oscilloscopes The acquisition and display system still has the following defects: [0003] (1) During the long-term reliability test, when the user ...

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Application Information

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IPC IPC(8): G01R13/02
CPCG01R13/0209
Inventor 程玉华陈凯许波贾树林韩文强耿航李力赵佳
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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