Damping torque sensors

The worst case is damping above the operational frequency. This means that the sensing element response includes a delay. For force and torque sensors there is no standard equipment on the market, as for electrical circuits. For signal transmission only radio-frequency based systems can avoid mechanical influences (Fig. 7.12.12). 

Lubricants have a nonlinear viscosity coefficient against temperature. At very low or very high temperature this nonlinearity can create significant measurement failures. A careful analysis will show this effect within the transmission chain. Sticking is the worst case. It can happen that frozen water makes a short cut in torque sensors. In most cases damping factors are based on the electrical filter circuits (Fig. 7.12.13). 

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