产后全身酸痛
专利名称：APPARATUS FOR DETERMINING THE
头孢硫脒>西南财经大学分数线PRESENCE OF A VESSEL BY DETECTING ITS
WAKE
发明人：JOSEPH P. STRAPP,NERI E. CORNFORD
申请号：US3706962D
申请日：19710305
公开号：US3706962A
公开日：
小学英语课堂游戏>情狂
19721219
电子元器件识别图大全>古代法专利内容由知识产权出版社提供
摘要：Apparatus for determining the prence of a vesl, such as a submarine in the ocean, by detecting its wake, comprising a test thermocouple (TC) junction connected to a length of two thermocouple conductors, and a heat sink, into which the free ends of the conductors are immerd, to form a reference thermocouple junction. An electrical instrument, such as a pen chart recorder, is connected to the free ends of the two conductors, the pen of the instrument being adapted for tting to a reference level, generally zero, when the voltage across the two conductors is constant, indicating that the test TC junction is in an environment where the temperature of the water is static. A submersible tow is ud capable of being towed by a vehicle, generally a surface vesl. The test TC junction is mounted on the submersible tow, and thus monitors the temperature of the water, whereby a marked deviation in the temperature of the water from its static value, which indicates the prence of the wake of the vesl, is detectable on the scale of the electrical instrument by a corresponding deviation in the reading of the instrument from the reference level reading.
申请人：NAVY USA叶子菜
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