Abstract
A new device is built to measure the mechanical characters of the double ended tuning fork which is used as the sensitive element of resonant sensor. It is mainly composed of a three dimensional workbench, a force sensor, a servo motor, control circuit and a photodiode. Detailed theoretical analysis is carried out to verify the feasibility of the design and some experiments have been done to test the performance of the device. Firstly, the calibrated result of the force sensor shows that the applied force possesses good linear relationship with the output voltage. Then, zero drift character indicates that the force drift is just 0.1N and the stability performance of the applied force is also detected. Finally, the axial force loading test is carried out. In conclusion, the above experiments prove that the designed scheme is right and reliable to measure the mechanical characters of the double ended tuning fork.
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Recommended by Associate Editor Moon Ki Kim
Guo Zhanshe is an associate professor in Beihang University. He currently engaged in the studies of MEMS and advanced measurement technology.
Li Yilun is studying for master degree in Beihang University. His major is in measure and control technology and instrument. He currently engaged in measurement of gyroscope.
An Ying is studying for master degree in Beihang University. Her major is in measure and control technology and instrument. She currently engaged in measurement of MEMS sensor.
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Zhanshe, G., Ying, A., Yilun, L. et al. A new device built to measure the mechanical characters of the double ended tuning Fork. J Mech Sci Technol 28, 5055–5062 (2014). https://doi.org/10.1007/s12206-014-1126-y
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DOI: https://doi.org/10.1007/s12206-014-1126-y