New wire-actuated encoder with digital display

April 18, 2016  1178  1178   

SIKO wire-actuated encoders have been in use for many years in the field of length measuring technology and have already proved their worth in different conditions, especially difficult conditions.  In many applications, only a wire-actuated encoder can be used as a linear measuring sensor, as the design often does not allow for guided sensor systems for measurement.  The easy assembly and guiding of the wire pull-out means that the measuring system can be integrated in existing systems simply and flexibly. Different interfaces and output signals make it possible to connect to a vast range of different control concepts.

Because of the possibility of attaching various rotary encoders, the wire-actuated encoders offer a wide range of possibilities for use, regardless of what signal output is required.  Outdoor use, something that can never be ruled out for mobile machines in particular, is already standard for the wire-actuated position encoders, which meet the necessary prerequisites: working temperature range from -40°C to +80°C, robust casing that can include outlets with which fluid in the device can be drained off again.

How they work could not be simpler: a measuring wire is wound onto an internal drum in one layer, guaranteeing very high linearity across the entire measurement range. When the wire is pulled out, the drum rotates. The angle sensor connected directly to the drum axis registers this rotation and produces a measurement signal that is proportional to the wire movement and that can be evaluated at will. The wire is returned using a spiral spring on the rotational axis of the drum. Because the wire is simply attached to the measurement object, the assembly effort is especially low.  As a result, there is no need for any additional guiding systems or for the installation of energy chains. The flexible wire also allows for linear position measurements in inaccessible locations. Indirect measurement paths can also be realized with the help of return pulleys.   

Features of the SDE04 wire-actuated encoder: 

• ·    linear distance measurement up to 1000 mm
• ·    freely programmable electronic digital display
• ·    LCD display with 5 digits, special characters and digit height of 8 mm
• ·    long battery life and easy battery change without dismantling the device
• ·    flexible mounting position

Siko has over 50 year’s experience in distance and angle measuring technology and solutions with worldwide representation.