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A bistable element that acts as a memory and that uses a thin foil as a switching and sealing element that, as a consequence of the very low mass, permits switching times of 0.2 to 1 ms (Figure F 33)

strain gauge made of an approx. 5 μm thick metallic measuring grid (as a rule constantan or Modco) cut in a zig-zag pattern that is sensitive to strain in the longitudinal direction. Thin foil strain

Sequential control system that is called a "process-dependent sequence control" according to DIN 19 237.

If, on drives with several loads, the function depends on reaching a specific boundary condition for the upstream load, the term sequence control is used. The sequence control of actuators can be cont

On a follow up control the value for the controlled variable follows the changing value of the reference variable during the feedback control (DIN 19 226). The main task of the controller here is to a

Function principle in which a small pilot piston is deflected, the main control piston then follows by means of pressure actuation as long as the actuation lasts. As a rule the pilot piston is in the

Volume displaced by a stroke or other cycle on all displacement elements on a displacement unit (pump/motor) during one revolution of the drive shaft. The output volume is generally stated in cm 3 . G

Flow rate that a pump delivers. The term delivery flow should as far as possible no longer be used in fluid technology, instead flow rate should be used.

Feature on hydraulic pumps of piston and vane design that changes the delivery flow in accordance with an input variable. On the pump this is a distance s that can be specified in various ways (Figure