Tilt measurement on a hydraulic hammer

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How to measure tilt on a hydraulic hammer? A hammer strikes the tube into the ground and causes enormous mechanical vibrations. This mechanical "noise" is the biggest problem for standard inclination sensors. It is important for manufacturers of hydraulic hammers to measure the position of the hammer. If the tube in the ground is tilted so will be the, for example, windmill that will be placed on top of it.

To measure tilt on a hydraulic hammer Althen developed a servo-inclination measuring system with an electronic filter. This servo-inclinometer is resistant to the hammer blows in the vertical direction. The measuring direction of the system is inserted in the flat plane, perpendicular to the hammer direction.

The designed sensor is oil-filled, the primary protection against mechanical noise. It is an "active", or a "closed-loop" sensor, that measures inclination very accurate.

The integrated amplifier has a low-pass filter. This filter transmits slow signals (inclination), but blocks the faster signals (vibrations). Furthermore, the housing is made of high-quality steel and has a special coating that protects the sensor against offshore conditions.

The advantages of this sensor solution

  • Highly accurate
  • Robust sensor
  • Vibration proof
  • Specially developed for hydraulic hammers.
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