Ltspm: Created page with "The qPlus sensors supplied by CreaTec are based on the work of Prof. Franz Giessibl (University of Regensburg, Germany) and therefore supplied by him. The nominell dimensions ..."

2015-01-05T07:45:30Z

Created page with "The qPlus sensors supplied by CreaTec are based on the work of Prof. Franz Giessibl (University of Regensburg, Germany) and therefore supplied by him. The nominell dimensions ..."

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The qPlus sensors supplied by CreaTec are based on the work of Prof. Franz Giessibl (University of Regensburg, Germany) and therefore supplied by him. The nominell dimensions of the sensors are:
L=2.36mm, H=0.214mm, T=0.127mm.
Gluing the tip to the end of the sensor leads to a spring constant of 1800 N/m (+/-7%). The biggest error is given by the placement of the tip itself. For a more precise measurement of the spring constant (k) one has to measure the resonace frequency without tip first:
f0 = sqrt(k/0.243m)/(2Pi). The biggest error of k of the bare sensor is within the thickness (T) of the sensor. It's needed for calculating the sensor mass m = rho_quartz*L*H*T, (rho_quartz = 2.203 g/cm3).

QPlus Sensors - Revision history

Ltspm: Created page with "The qPlus sensors supplied by CreaTec are based on the work of Prof. Franz Giessibl (University of Regensburg, Germany) and therefore supplied by him. The nominell dimensions ..."