Nonlinear calibration method of conducting polymer tensile sensitive effect considering temperature effect

Abstract

The invention provides a nonlinear calibration method of a conducting polymer tensile sensitive effect considering a temperature effect. The method comprises the following steps: carrying out a tensile test on a conductive polymer at constant temperature to obtain a plurality of groups of tensile sensitive characteristic curves of the conductive polymer at different temperatures; in order to eliminate the influence of working temperature on tensile sensitive characteristics, normalizing all the tensile sensitive characteristic curves by using respective K10, wherein the normalized tensile sensitive characteristic curves obey quadratic polynomial distribution; K10 is a normalized resistance corresponding to a strain of 10% at the same temperature; according to the linear relationship between the K10 and the working temperature and the normalized relationship between the normalized tensile sensitive characteristic curves and the K10, a nonlinear calibration model of the conducting polymer tensile sensitive effect in the working temperature range is obtained, and then the obtained nonlinear calibration model is used for calibrating the tensile sensitive effect of the conductive polymer. The accuracy of the deformation value of the conductive polymer is improved.

Description

technical field [0001] The disclosure belongs to the field of non-linear calibration of the pull-sensitivity effect of conductive polymers, in particular to a nonlinear calibration method of pull-sensitivity effects of conductive polymers considering temperature effects. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Since the advent of conductive polymers in the 1970s, they have been widely used in engineering fields such as civil engineering, transportation, and water conservancy. The conductive polymer has a pull-sensitivity effect after being processed by a special process, that is, its stretching deformation under the action of external stretching will cause its own resistance to increase. Based on this principle, the deformation of the conductive polymer itself can be determined by measuring the change in electrical resistance. ...

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Problems solved by technology

[0004] The inventors have found that field applications and experiments all show that the pull-sensitivity effect of conductive polymers is greatly changed by the temperature during measurement. If the influence of temperature on resistance measurement is not considered in the process of determining the deformation of conductive polymers themselves, the obtained Conductive polymer deformation values ​​are less accurate

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