DIRECT DIGITAL CONTROL OF VARIABLE-SPEED HYDRAULIC TRANSMISSION.
Report for Jul 64-Jan 65,
NAVAL ORDNANCE TEST STATION CHINA LAKECA
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The report documents a test in which a digital orifice test panel was used with a 7020 hydraulic power drive to study the open - loop response. The 7020 is a typical Fleet-used gun and launcher drive unit the digital orifice panel is an absolute - value and sign-flow control device that accepts binary digital commands and is used to control the output of the variable-displacement pump and fixeddisplacement motor of a hydraulic transmission. The test was conducted to establish the capacity and further the study of digital hydraulic controllers. The digital orifice used in the test was a breadboard panel. Author