attoPUBLICATIONS attoCATALOG-2017/18 | Page 222

IDS Sensors
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Selected Applications

IDS Sensors
Contactless
Frequency Analysis of Motor Vibrations
To monitor the health status of a gear or machine , attocube ’ s IDS3010 can be used to track machine vibrations . To improve the vibration behavior of a machine , its motor was rotated at different speed levels and the motor ’ s vibrations were measured on the outer shell of the motor . Conducting a live Fast-Fourier-Transformation ( FFT ) showed that the motor rotating with 2000 rpm generated vibrations at 270 Hz which in turn amplified a system resonance at 345 Hz , and therefore drastically increased the overall vibration amplitude . At this system status , the vibrations amplitude was identified to be more than 150 nm , while the maximum acceptable amplitude was set to 100 nm . This crucial information enabled the system ’ s manufacturer to minimize the system response to vibrations and prevented potential failure .
( attocube application note SEN13 , 2014 )
Highly Precise Micro Manufacturing
Ever increasing requirements for precision and size of machined parts have driven the development of highest-precision machining tools . The Square Foot Manufacturing concept separates well-known machining centers into small-sized sub-groups having standardized interfaces not only for power and data transmission but also for the transmission of processing forces and moments . Laser interferometry plays a key role in the piezo-based feed units of this concept as well as in the measurement of the reproducibility of these interfaces . A special differential technique allows for precise characterization of translational and rotational errors , which , in this case , are better than 0.16 μm and 8.22 arc seconds ( 3 sigma ) respectively .
( attocube application note SEN07 , 2013 )