频率漂移不敏感太赫兹波透射测量系统设计

doi:10.3969/j.issn.1000-1158.2011.05.17

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Abstract The precision of the conventional terahertz transmission measurement system with a parallel-plate sample will be reduced due to the interference effect, when the frequency of the THz source drifts. To resolve the problem, a frequency-drift insensitive transmission measurement system composed of double-path is proposed. A F-P interference model is built with MATLAB. The parameters are optimized, and the effects of the terahertz source frequency drift on the precision of both the single-and double-path transmission measurement are analyzed and compared. The results demonstrated that such kind of measurement system could avoid the influence of the frequence-drift of the THz source, thus improving the measurement accuracy.

Key words： Metrology F-P effect Terahertz wave frequency-drift insensitive Transmission measurement

PACS:

TB973

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	Articles by authors
	MA Wu-xi
	LIU Jian-jun
	WANG Wei
	LI Jing
	HONG Zhi

Cite this article:

MA Wu-xi,LIU Jian-jun,WANG Wei, et al. The Design of Frequency-drift Insensitive Terahertz Transmission Measurement System[J]. Acta Metrologica Sinica, 2011, 32(5): 466-469.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2011.05.17 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2011/V32/I5/466

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