Sensors based on density - differences in fluids and method for operating and for the production of such sensors for detection of movement, position, fluid - properties

摘要

Sensor for detection of position and / or movement in space, having a closed container, the at least one transmitter and at least one receiver and a fluid surrounds characterized in that the at least one transmitter cyclic fluid - fluctuations in density is generated and the at least one receiver, the transit time - change and / or the phase shift and / or the change in frequency and / or detects the change in amplitude.