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Because of the environmental requirements, deep-sea abandoned measuring instrument mostly uses the cable channel. However, the stability of the channel transmission is seriously affected by length change in electrical impedance of the channel. In this paper, a new method is presented, which is used for dynamically analysing the effects of the cable channel on the amplitude and phase of the transmission signal by using XCTD (expendable conductivity, temperature and depth) profiler transmission channel. Firstly, regulations about the parameters of each circuit varying with the channel length is proposed. Meanwhile, the simplified transmission circuit model and its transfer function are established. Through qualitative analysis we can conclude that the transmission frequency, distributed capacitance and winding inductance have an influence on the signal phase. Finally, in this paper we analyse and discusse how the cable influences the transmission of signal, and present the reason of the influences with MATLAB, which can further guide the design of the XCTD measuring system and improve the accuracy of the measurements and the stability of signal transmission.
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Keywords:
- deep-sea abandoned measuring instrument /
- signal transmission /
- impedance measurement /
- cable channel
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[10] Shao Y, Li J G, Wang X 2010 Ocean Technol. 29 4 (in Chinese) [邵毅, 李建国, 王欣 2010 海洋技术 29 4]
[11] Li L, Yang L A, Zhou X W, Zhang J C, Hao Y 2013 Chin. Phys. B 22 087104
[12] Zheng Y, Li H Z, Liang J 2013 Marine Sci. Bull. 3 24 (in Chinese) [郑羽, 李红志, 梁捷 2013 海洋通报 3 24]
[13] Wang F Q, Ma X K 2011 Acta Phys. Sin. 60 070506 (in Chinese) [王发强, 马西奎 2011 物理学报 60 070506]
[14] Zheng Y, Li H Z, Liang J 2013 Ocean Technol. 32 21 (in Chinese) [郑羽, 李红志, 梁捷 2013 海洋技术 32 21]
[15] Wang W, Luo X B, Yang L J 2011 Acta Phys. Sin. 60 107702 (in Chinese) [王巍, 罗小彬, 杨丽洁 2011 物理学报 60 107702]
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[1] Wu Y H 2007 Ocean Technol. 26 14 (in Chinese) [武玉华 2007 海洋技术 26 14]
[2] Zhang S 1994 IEEE Trans. Instrum. Meas. 43 929
[3] Yan C X, Zhu J, Zhou G Q 2007 Adv. Atmosph. Sci. 24 383
[4] Xiong X J, Hu Y M, Yu F, Jiao Y T 2006 Ocean Technol. 25 107 (in Chinese) [熊学军, 胡筱敏, 于非, 矫玉田 2006 海洋技术 25 107]
[5] Gavrilakis A, Duffy A P, Hodge K G, Willis A J 2004 IEEE Trans. Electromagn. Compatib. 46 299
[6] Zhang Z B, Ma Y L, Ni J P, Tong L 2002 J. North western Polytech. Univ. 20 36 (in Chinese) [张忠兵, 马远良, 倪晋平, 童立 2002 西北工业大学学报 20 36]
[7] Sun T, Huang Y S, Tao J H 2002 Marine Sci. Bull. 4 69 (in Chinese) [孙涛, 黄银水, 陶建华 2002 海洋通报 4 69]
[8] Zhang J Z, Wang Y C, Wang A B 2008 Chin. Phys. B 17 3264
[9] Fan H B, Peng A, Wang S X 2010 Instrum. Tech. Sensor 11 91 (in Chinese) [范寒柏, 彭安, 王少仙 2010 仪表技术与传感器 11 91]
[10] Shao Y, Li J G, Wang X 2010 Ocean Technol. 29 4 (in Chinese) [邵毅, 李建国, 王欣 2010 海洋技术 29 4]
[11] Li L, Yang L A, Zhou X W, Zhang J C, Hao Y 2013 Chin. Phys. B 22 087104
[12] Zheng Y, Li H Z, Liang J 2013 Marine Sci. Bull. 3 24 (in Chinese) [郑羽, 李红志, 梁捷 2013 海洋通报 3 24]
[13] Wang F Q, Ma X K 2011 Acta Phys. Sin. 60 070506 (in Chinese) [王发强, 马西奎 2011 物理学报 60 070506]
[14] Zheng Y, Li H Z, Liang J 2013 Ocean Technol. 32 21 (in Chinese) [郑羽, 李红志, 梁捷 2013 海洋技术 32 21]
[15] Wang W, Luo X B, Yang L J 2011 Acta Phys. Sin. 60 107702 (in Chinese) [王巍, 罗小彬, 杨丽洁 2011 物理学报 60 107702]
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