2020-05-11 05:39 AM
2020-05-11 09:39 AM
Making measurement up to 6 kHz is not so trivial in fact, you need to pay attention to the measurement methods.
You should mount STWIN rigidly on top of the motor as example, with help of the screw areas for the mounting.
Ensure also battery, cables and other moving elements are mounted in a secure way with glue as example.
In some cases, you might even consider making separate metal holder to fix STWIN correctly or you can consider new plastic box by 3D printing.
With above pre-cautions we have been able to see accurate measurements from bearings that had the highest frequencies in general.
Making first measurements up to let’s say 1kHz are easier, you could even use strong magnets to attach ST-WIN, you could glue magnet carefully to STWIN directly.
Using then uSD or USB logging are the best methods for connectivity. We also showed the Unico kit with 20x20mm board as a method to evaluate the component itself and to avoid additional mechanical resonances. The board is called STEVAL-MKI208V1K and it provides the best mechanical benefits from the tools you may consider for the vibration sensor product freq. response evaluation.