The measuring cable is connected to the piston and is pulled from the sensor during the operation of the cylinder. In the sensor itself, the measuring cable is coiled around a cable sheave, which rotates with each cylinder stroke, thereby turning the linear movement into a rotation. Through a sealed shaft (pressure implementation) the rotary movements are directed outwards into an unpressurized area and recorded by a sensor element (e.g. a digital absolute rotary encoder).
Through the evaluation of sensor signals, not only is the position of the piston rod regulated, but the specific cylinder positions are also recorded and the synchronic movement of multiple cylinders is ensured. The highly dynamic sensors also allow for rapid cylinder movements during this process. The compact casing, as well as adaptation to customer needs, qualify this sensor technology for multiple areas of application. Thanks to its robust construction and high quality, the sensor can be employed in harsh industrial environments.
Typical applications for the Draw Wire Encoder SX200 are: Hydraulic gates on dams; monitoring of simultaneously running cylinders; regulation and monitoring of traverse speed.
This series is discontinued. The successor model is found here: Data Sheet SX300
Further draw wire sensors are found here.
WayCon Positionsmesstechnik GmbH
Fon: +49 89 679713-0, Fax: -250
Auf der Pehle 1
Fon: + 49 2232 56 79-44, Fax: -45