Acceleration / Vibration

The measuring elements, which are based on capacitive measuring principles, distinguish themselves with their accuracy and impact strength. This is achieved with three layers “bulk micro machined technology” of single crystal silicon. The special construction assures that no drift is detected when hit hard even if the test mass has been deformed. The gas damping within the sensor elements avoids resonance frequency effects and overshooting.

The sensors are based on further developed ‘bulk micro-machined” technology. The three dimensional structure of the sensor elements incorporate a pendulum made of single crystal silicon which is hermetically sealed between two silicon plates. The result is that the sensor has long term stability, a high resolution and is shock resistant. The measuring element is gas damped which avoids overshooting and disrupting resonance frequency effects. Due to the simple voltage signal it is possible to also use it with SPS and other common control units.

The 4mA to 20mA signal output allows long connecting cables. The current signal can be transformed into a voltage signal of either 1V to 5V or 2V to 10V across a certain resistor. As a standard the inclination sensors (either single or bi-axial) are available with a range of +/-30° (=+/-0,5g) and +/-90° (=+/-1g).

The robust, 2-axial vibration sensor is suitable for dynamic use up to +/-18g and high resolution (better 2mg) and repeatability (better 10mg). The sensor element is gas damped which filters out disrupting high frequency effects (acoustic, resonance-frequency) before they are measured. The robust metal housing has proven itself reliable in many rough environmental situations (also waterproof).