Calibration electric current sensors

Figiue 4b, b show the calibration lines (muscle potential and consumed energy, respectively) for muscles sensing the working electrolyte concentration after three different times of current flow. Figiue 4c, c show the calibration lines for the muscle thermal sensor and Fig. 4d, d for the muscle current sensor from similar results to those shown by Fig. 4a attained now at different temperatures or under flow of different constant currents. Theoretical and experimental results as thermal, mechanical, chemical and electrical sensors for different conducting polymers and electrolytes have been reviewed recently (Otero and Martinez 2015). 

The symbol Xsp(t) denotes the internal set-point composition expressed as an equivalent electrical current signal. This signal is used internally by the controller. Xsp t) is related to the actual composition set point x sp t) by the sensor-transmitter gain Ky (which is the slope of the calibration curve) ... 

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