In some industrial environments, conditions can be harsh and unforgiving – vibrations, moisture and dirt interfere with the systems, putting the resistance of their components to the test. The new generation of contactless linear position sensors from Turck are also capable of withstanding extreme conditions and can withstand shocks and vibrations without any problem at all.
In heavy-duty applications, it is always a case of identifying which sensors will stand up to the high demands that the environment has in store for them. Until now, no satisfactory solutions have been available that were suitable for use in position measurement, especially in the case of production processes, such as pressing and punching, in which shocks and vibrations are unavoidable.
With the innovative Li-Q25L linear position sensors that comply with the IP67 rating, Turck is setting a milestone in terms of robustness and resistance – vibrations and shocks of up to 200 g will not prevent these unshakeable measuring devices emitting a precise position signal. The tracking error rate is also reduced to an absolute minimum, thanks to a sampling rate of 5 kHz. Precision is further enhanced by a 16-bit D/A converter. The output signal is constantly emitted in parallel, as a 0…10 V signal and as a 4…20 mA signal. The redundancy this provides also makes it possible to carry out logical position evaluation.
Turck is offering its new linear position sensors in measurement lengths from 100 mm up to a record-setting 2000 mm, which means they can be used in a wide range of applications.
The fact that they are not sensitive to magnetic fields is likely to make them a particularly attractive solution in the metal-working industry. Their resistance to shocks and vibrations is attributable to the contactless linkage between the position encoder and the tracking board that is hard-mounted in the sensor and their highly stable housing also makes the sensors even more robust.
Unlike conventional contactless sensors, these new linear position sensors do not measure the running time, but sample the precise position at extremely short intervals. They are therefore capable of mastering long measurement runs just as quickly as short ones. The fact that they provide a sampling rate that is five times higher than current systems means that the data they provide ensures optimum control. Even in longer versions, the 16-bit converter provides a high-resolution output signal.
The operational safety of the new linear position sensors is monitored constantly. A diagnostic LED displays its current operating status. At the start of the process, for example, it will immediately emit an output signal of 24 mA or 11 V respectively, to signal that the maximum permitted distance between the position encoder and the sensor has been exceeded. By evaluating the signal in the controller, any faults in the machine can be diagnosed immediately and precisely.
When it comes to purchasing the very latest sensor technology, you can rely on Bachofen. Even the heaviest demands that an application requires won’t faze us. Quite the opposite – they are what motivates us to go the extra mile to achieve the best possible solution.
