A Method of Improving Signal Capture Ability of Digital Oscilloscope

Abstract:

Signal capture is one of the hot spots in electronic test. As the representative of testing instrument, the signal capture ability of digital oscilloscope is normally judged by the waveform capture rate. Unilaterally improving signal acquisition ability whereas ignoring the improvement of waveform imaging mechanism and display effect can not increase the oscilloscopes waveform capture rate in real sense. Aiming at better ability of signal acquisition and waveform display effect of oscilloscope, this paper is committed to analyzing the improved structure of oscilloscope and conducting the real-time waveform imaging with hardware coprocessor array, and then studying the imaging mechanism of special 3D waveform and the impact of waveform display on waveform capture rate. In this way, the signal capture ability of oscilloscope is greatly improved and the effective waveform capture rate as high as 1,000,000 wfms/s is realized.

• Periodical: Advanced Materials Research (Volume 721)
• Pages: 392-396
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.721.392
• Online since: July 2013
• Authors: Jun Jiang, Shu Lin Tian
• Keywords: Digital Oscilloscope, Signal Capture, Waveform Capture Rate, Waveform Imaging

References

[1] YE P, ZENG H, XIANG CH Y, et al. The testing method of waveform capture rate for DSO[J]. Acta Metrologica Sinica, 2010, 31(6): 551-554.

[2] WEI L, YE P, ZENG H. Research on software mapping technology of waveform three-dimensional information of digital oscilloscope[J]. Journal of Electronic Measurement and Instrument, 2010, 24(11): 1018-1023.

DOI: 10.3724/sp.j.1187.2010.01018

[3] GB/T 15289-2009 General specification for digital storage oscilloscope[S]. 2009.

[4] LIANG J, XU J F, LIU Y J. Choice and development of digital storage oscilloscopes[J]. Modern Instruments, 2006, 12(6): 45-48.

[5] ZENG H, XIANG CH Y, YE P, WANG H J. Research on a Method to Improve the Waveform Acquire Rate of DSO[J]. ICEMI '2009, Beijing, China, 2009, 1.

DOI: 10.1109/icemi.2009.5274469

[6] JIANG J, TIAN SH L. Research on the digital oscilloscope displaying in different brightness-grade[J]. Chinese Journal of Scientific Instrument, 2008, 29(Suppl.4): 280-283.

[7] YE P, ZENG H, JIANG J. Research on the digital storage oscilloscope with a parallel structure[J]. Chinese Journal of Scientific Instrument, 2008, 29(Suppl.4): 626-628.

[8] DAI G, WU L N, WANG X. Implementation of digital phosphorescence processor in DPO[J]. The 7'th International Conference on Electronic Measurement and Instruments, 2005.

[9] ZENG H, YE P, WANG H J, et al. Research on waveform mapping technology of digital three-dimensional oscilloscope[J]. Chinese Journal of Scientific Instrument, 2009, 30(11): 2399-2404.

DOI: 10.3724/sp.j.1187.2010.01018

[10] Roger A. DPOs employ intuitive learning to raise productivity bar [J]. Electronic Design, 2004, 52 (6): 32.