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Apparatus and method for thrust variation measurement using the thrust pad of marine propulsion system
Apparatus and method for thrust variation measurement using the thrust pad of marine propulsion system
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机译：使用船舶推进系统的推力垫测量推力变化的装置和方法
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摘要
PURPOSE: An apparatus and a method are provided to measure thrust variation by measuring deformation of a thrust pad after attaching Wheatstone bridge-type strain gauges to a side of the thrust pad. CONSTITUTION: A plurality of Wheatstone bridge-type strain gauges(2) is attached to a side of a thrust pad(1) so as to measure thrust variation. A thin film is welded to a thrust block through a spot welding process in order to protect connection signal lines withdrawn from the Wheatstone bridge-type strain gauges. The connection signal lines are withdrawn out of a main frame through a hole formed in the main frame. Then, the thrust pad equipped with the strain gauges is corrected by using a loader before the thrust pad is installed in the main frame. The signal lines are converted into electric signals through a bridge transducer(4) and the electric signals are amplified through an amplifier(5).
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