Displacement measurement method based on resistance creep of composite conductive polymer pressure sensitive material
A technology of conductive polymers and pressure-sensitive materials, applied in the field of measurement, to achieve the effects of solving adverse effects, improving displacement measurement accuracy, and reducing resistance creep
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[0023] In the calibration process, the moment of loading completion and the creep stage are calibrated respectively, and the corresponding algorithm is written; in the monitoring process, the force stage of the pressure-sensitive material is first determined through the change of resistance, and then the corresponding The calibration data and algorithm get the displacement value at each moment.
[0024] 1. Calibration process
[0025] (1) Apply load to a pressure-sensitive material to a certain pressure, record the displacement and resistance value at the moment of completion of loading, and obtain N sets of data in total to form the calibration data at the moment of completion of loading. The resistance-displacement calibration curve at the moment of loading completion and the key quantities used for calibration such as figure 1 As shown, "o" in the figure is the calibration point. Wherein, S(i) and R(i) represent the displacement and resistance at the moment of loading com...
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