PVDF压电薄膜传感器在便携式宫缩监测仪器中的应用  

Application of PVDF Piezoelectric Film Sensor in Uterine Contraction Pressure Monitoring

作　　者：应红华[1] 干红 梅秀峰 张晓红[3] 

机构地区：[1]金华市人民医院护理部,浙江金华 [2]绍兴兰韵医疗器械科技有限公司,浙江绍兴 [3]杭州电子科技大学电子信息学院,浙江杭州

出　　处：《仪器与设备》2015年第1期5-11,共7页Instrumentation and Equipments

基　　金：金华市社会发展类重点科技项目(2011-3-012)。

摘　　要：针对于传统压力传感器在宫缩监测中普遍存在的测量精度低、舒适度差等问题,在分析PVDF薄膜压电效应基础上,探讨了用于便携式宫缩压力监测仪器的PVDF压电薄膜传感器制作工艺,设计了宫缩压力信号放大和滤波预处理电路。在医院临床对PVDF压电薄膜传感器进行性能测试,结果表明:此传感器能够精准地感测到孕妇的子宫收缩变化,降低对孕妇正常活动造成的影响,符合当前医疗设备向便携化、移动化、可穿戴发展的趋势。For the low accuracy and poor comfort of traditional pressure sensors in uterine contraction pressure monitoring, a PVDF piezoelectric thin film sensor was fabricated. In this paper, PVDF film piezoelectric effect, fabrication process of sensors and design of signal preprocess were discussed. The performance testing in hospital for this sensor was made and the experimental results showed that this sensor can detect uterine contraction pressure accurately and reduce the impact on the normal activities of pregnant women, complying with the trend that current medical instrumenta-tion is becoming portable, mobile and wearable.

关 键 词：宫缩压力监测 流产 早产 PVDF 压电传感器 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]