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Hydro turbine control
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<blockquote data-quote="Grendel" data-source="post: 469660" data-attributes="member: 27231"><p>Another question: The runner blades are adjusted by a cylinder that is integral to the turbine shaft.</p><p></p><p>The rotary union is on top of the piston.</p><p></p><p>This is practical, but there is no way for me to know the position of the piston and/or the runner blades during operation.</p><p></p><p>I have a way to bring out an hydraulic piston rod through the lid to take position info from there, but I'd rather not if I don't have to.</p><p></p><p>Do sensors exist that can be screwed into the lid and take position of the piston through hydraulic oil?</p><p></p><p>A bit like an ultrasonic sensor? I hope they do, but I haven't been able to find them.</p></blockquote><p></p>
[QUOTE="Grendel, post: 469660, member: 27231"] Another question: The runner blades are adjusted by a cylinder that is integral to the turbine shaft. The rotary union is on top of the piston. This is practical, but there is no way for me to know the position of the piston and/or the runner blades during operation. I have a way to bring out an hydraulic piston rod through the lid to take position info from there, but I'd rather not if I don't have to. Do sensors exist that can be screwed into the lid and take position of the piston through hydraulic oil? A bit like an ultrasonic sensor? I hope they do, but I haven't been able to find them. [/QUOTE]
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