Yan, T, Jones, B E, Rakowski, R T, Tudor, M J, Beeby, S P and White, N M
Stiff Load Cell With High Overload Capability and Direct Frequency Output.
At 18th European Conference on Solid-State Sensors (Eurosensors 2004), Rome,
15 - 12 Sep 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.
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