Stiff Load Cell With High Overload Capability and Direct Frequency Output
Tianyu Yan, B.E. Jones, R.T. Rakowski, John Tudor, Steve Beeby, Neil M. White · ePrints Soton (University of Southampton) · 2004
This paper reports on the design, construction and characteristics of a novel load cell having stiffness and potential overload capability some 10 times that of a resistive strain gauge load cell. The experimental cell loaded up to 600 kg gives a direct output frequency change of 870 Hz (safety factor of 5). It uses recently developed metallic triple beam resonators with thick-film PZT drives and pickups.