摘要
针对聚吡咯在传感器方面的应用问题,对其作为机械传感器时的传感特性进行了研究,提出了一种在施加外部静态偏转的情况下,采集PPy机械传感器传感输出的微弱电信号的测量方法,并建立了具有屏蔽外界干扰功能的输出信号测量系统。对传感器施加由小变大和由大变小两组偏转位移,在屏蔽外界干扰的条件下依次测得了对应的传感输出信号,通过分析传感输出电压与输入偏转位移之间的关系,得到了完整的聚吡咯传感输出去/回程特性曲线方程。研究结果表明,该测量系统能够实现测量PPy机械传感器在静态偏转的状态下所输出的电压信号,且传感输出与输入变化规律基本一致;由得到的特性曲线方程可以发现,在其传感过程中存在非线性迟滞现象,该发现可以为聚吡咯用于制作机械传感器提供一定的实验依据和参考。
Aiming at the application of PPy（polypyrrole） in the sensor, the sensing characteristics of the PPy mechanical sensor were studied. A method to measure the weak electric output signal of the sensor was presented under the condition of external static deflection applied, and the output signal measuring system was established with the function of shielding external disturbance. PPy sensor was applied by two sets of deflection displacements, the former values changed from small to large, the latter from large to small, then the corresponding sensor output signals were obtained in the shielding of external interference, by analyzing the relationship between the input deflection displacement and sensor output voltage, complete PPy sensor output characteristic curve equation of To-go and backhaul was gotten. The results indicate that the measurement system can achieve the output voltage signal of PPy mechanical sensor in the state of static deflection, and the sensor output keeps in line with the change of the input basically. Nonlinear hysteresis phenomena exists in the process of sensing according to the characteristic curve equation. The result provides a certain experimental basis and reference for the production of PPy mechanical sensor.
出处
《机电工程》
CAS
2017年第5期450-454,共5页
Journal of Mechanical & Electrical Engineering
基金
湖南省自然科学基金资助项目(2016JJ6128)
关键词
聚吡咯
唐南平衡
干扰屏蔽
传感特性
polypyrrole
donnan equilibrium
shielding interference
sensing characteristics
