一种基于虚拟仪器技术的视频分析仪校准装置

doi:10.3969/j.issn.1000-1158.2024.10.18

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Abstract In response to the issues of the main standard devices being discontinued and the cumbersome calibration process in the calibration of video analyzers, based on virtual instrument technology and in the LabVIEW development environment, a video analyzer calibration device was developed using the M4i.6622-x8 arbitrary waveform generation card as the signal generation module.The basic parameters and distortion parameters of the video analyzer were calibrated.The calibration signal generation process for Lum level, Chrom level, Chrom phase video basic parameters and Tilt, 2T Pulse k-factor, C/L Gain and Delay, Lum NL video distortion parameters were provided.By experiment, the technical indicators can achieve: Lum level is ±0.2%, Chrom level is ±0.2%, Chrom phase is ±0.1°, Tilt is ±0.1%, 2T Pulse k-factor is±0.1%, C/L Gain is ±0.2%, C/L Delay is ±3ns, Lum NL is ±0.2%.The technical indicators are better than the TG2000 programmable video signal generator, meeting the calibration requirements of video analyzers.

Key words： video parameter measurement virtual instrument video analyzer calibration device arbitrary waveform generation card

Received: 21 September 2023 Published: 30 September 2024

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TB973

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	Articles by authors
	LIU Lei
	XU Shuwen
	HAN Zhengtao
	CHEN Peng
	HAN Dong

Cite this article:

LIU Lei,XU Shuwen,HAN Zhengtao, et al. A Calibration Device for Video Analyzer Based on Virtual Instrument Technology[J]. Acta Metrologica Sinica, 2024, 45(10): 1562-1569.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.10.18 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I10/1562

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