Method and device for calibrating acceleration and force sensors
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United States of America Patent
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Aug 11, 2015
Grant Date -
Nov 11, 2010
app pub date -
May 18, 2009
filing date -
May 29, 2008
priority date (Note) -
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Abstract
The stimulation of waves in bars, in particular at high amplitudes, is used for the calibration of acceleration and force sensors. A method and a device for calibrating acceleration and force sensors employing a Hopkinson bar for controlled influencing of the signal form, the signal amplitude and the pulse duration of the signals over a large amplitude range, is provided. A reference sensor and the sensor for calibration are arranged on the Hopkinson bar. At the end of the Hopkinson bar opposite the sensors, the stimulation is carried out by an electromechanical actuator for converting an electrical signal into a mechanical force. The electromechanical actuator may be controlled by a control and regulation electronic circuit. A targeted influence and change in the acceleration and force pulse form can be achieved.
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