An Improvement of Expendable Bathythermograph Measurement Mechanism for Anti-Submarine Warfare

Title & Authors
An Improvement of Expendable Bathythermograph Measurement Mechanism for Anti-Submarine Warfare
Shin, Sang-Sik; Cho, Hwan Hwi; Park, Seung Soo;

Abstract
Purpose: The purpose of this study is to improve a mechanism of expendable bathythermograph measurement by balancing wire resistances between plus wire part and minus wire part and by removing effects of sea water resistance between XBT(Expendable Bathythermograph) and temperature recorder. Methods: The problems are exactly found out through the analysis of XBT and temperature recorder circuit. A process of XBT manufacturing that balances wire resistances between plus wire part and minus wire part is added. Results: The results of this study are as follows; the complicated test process such as temperature accuracy test with a cistern is substituted with a simple process of XBT manufacturing such as balancing wire resistances between plus wire part and minus wire part. Then, the temperature accuracy tolerance of XBT is improved up to $\small{{\pm}0.1^{\circ}C}$. Conclusion: Consequently, balancing wire resistances and removing effects of sea water resistance improve temperature accuracy of XBT and reduce expensive and harassing process of XBT manufacturing.
Keywords
Expendable Bathythermograph (XBT);Anti-submarine Warfare;Shadow Area;Snell's Law;
Language
Korean
Cited by
References
1.
Albert, David., and Bates, J. 2006. Electronic Principles, 7th Edi. Mcgraw-Hill.

2.
Donald, Ross. W. 1987. Mechanics of Underwater Noise. Peninsula Publishing.

3.
James, W. N., and Susan R. 2010. Electric circuits, 9th Edi. Pearson.

4.
Kim, D. Y., Jeon, J. J., and Kim, Y, G. 2006. "Sea and Defence Technology." The Korean Physical Society 15:25-30.

5.
Waite, A. D. 2002. Sonar for Practising Engineers. John Wiley & Sons.