Accelerometer noise thresholds reduced

Thanks to improved testing procedures thresholds are now up to a reported 58% lower giving more accurate measurements in micro-vibration monitoring, necessary for industries such as the GPS and automobile sectors. Process improvements have also led to shorter manufacturing times and reduced lead times.

Reduced noise thresholds

The IEPE (Integrated Electronics Piezoelectric) triaxial accelerometer 8763B monitors vibrations in three mutually perpendicular axes. The measuring threshold determines the smallest possible level of vibrations that can be reliably picked up by the sensor.

In 2021, Kistler improved the noise threshold for the 50-g range. The company reports that more efficient testing procedures and investments into Kistler’s facilities have now led to further improvements across all ranges: a 58% lower noise threshold for its 100-g range, 37% for the 250-g range, 52% for the 500-g range, 54% for the 1000-g range and 51% for the sensor’s highest range of 2000 g.

The 8763B sensors provide a wide frequency response in each orthogonal axis, making it well-suited for dynamic vibration measurements, especially on lightweight structures. Other features include the sensors’ lightweight hermetic titanium housing and high immunity to base strain thanks to shear element technology.

An integral silicone cable variant is available for underwater vibration testing at up to 10 bars. Sensors of the 8763B family can be installed by either adhesive mounting or flexible studs thanks to three 5-40 threaded holes, making it possible to fully utilise each mounting side of the cube design.