Motion Transfer from a Sealed Housing

摘要: A source of motion for actuation a downhole tool is in sealed housing to protect it from well fluids. The filled with an incompressible fluid and thermal effects can be compensated preferably compensation bellows communication the fluid. preferable electrically powered longitudinal that results presses against within housing. This master contact slave through rigid seal welded wall. Movement equal movement outside Feedback loops or calibration are also contemplated.