Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (30): 5577-5580.doi: 10.3969/j.issn.1673-8225.2010.30.017

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Numeral critical fuse frequency determination

Geng Yan1, Hu Wen-dong2, Ma Jin2, Zhang Lei1, Wang Tao2, Han Wen-qiang2   

  1. 1 Department of Postgraduate, School of Aerospace Medicine, 2 Teaching and Research Section of Equipment, School of Aerospace Medicine, Fourth Military Medical University, Xi’an  710032, Shaanxi Province, China
  • Online:2010-07-23 Published:2010-07-23
  • Contact: Hu Wen-dong, Master, Teaching and Research Section of Equipment, School of Aerospace Medicine, Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China huwend@fmmu.edu.cn
  • About author:Geng Yan★, Studying for master’s degree, Assistant, Department of Postgraduate, School of Aerospace Medicine, Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China gengyan_2007@yahoo.com.cn
  • Supported by:

    a Grant from the National Natural Science Foundation Committee and Civil Aviation Administration of China, No. 60879007*

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Abstract:

BACKGROUND: Critical fuse frequency (CFF) determination is influenced by subjective and motive factors.
OBJECTIVE: To explore the relationship between the frequency and the reflect time and accuracy by the instruments of numeral critical fuse frequency (INCFF), and determine the CFF, compared with the instrument of shine flicker EP403. 
METHODS: A total of 14 male students, aged 17-20 years, with normal vision, were selected. The reflect time and accuracy were determined by INCFF and shine flicker EP403, and their relationship was calculated. The correlation of frequency with reflect time and accuracy was analyzed. CFF was calculated by two methods and analyzed.
RESULTS AND CONCLUSION: Negative relationship was between frequency and accuracy. The test-retest reliability of INCFF was 0.739 and P was 0.036; there was not different between INCFF and shine flicker EP403. INCFF displayed good practicability and reliability.

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