High-speed linear position sensor
1st Quarter 2013
Other technologies
Turck has entered the market for high-speed motion control with its latest version of the LI inductive linear position sensor. A new electronic architecture increases the effective output rate of the sensor from 1 to 5 kHz. In conjunction with the short signal run time (130 μs) and the highly resolved SSI output, the inductive linear position sensor can achieve the performance of potentiometers without their disadvantages. Unlike potentiometers, the LI sensor offers protection to IP67, provides non-contact measuring and is absolutely wear free. The magnetic field immune sensor is therefore suitable for measuring axes with high-speed controls such as are used in injection moulding machines. Other application areas include axis measurement in packaging machines, presses or machine tools.
With the high-speed and precision of the sensor (system resolution of 1 μm), machine builders can keep the position error in motor control applications to a minimum. As with all of Turck’s inductive linear position sensors, the high-speed variant has very short blind zones and can tolerate up to a 4 mm offset of the positioning element perpendicular to the measuring axis. As well as the high-speed variant with an SSI interface and 16-bit resolution, the analogue variant of the sensor will also be offered in future with the higher output rate of 5 kHz. The analogue sensor has a 0-10 V or 4-20 mA output. All LI sensors continue to be available in ten measuring lengths from 100 to 1000 mm. An 8-pole M12 connector is used for the connection.
For more information contact Rodney Topham, RET Automation, +27 (0)11 453 2468, [email protected], www.retautomation.com
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