一种基于薄膜式力敏电阻的咬合力检测系统的设计与测试  

The Design and Testing of a Bite Force Detection System Based on Thin Film Force Sensitive Resistors

作　　者：唐忠林 雷宏伟 李向东 Tang Zhonglin;Lei Hongwei;Li Xiangdong(School of Aeronautical Engineering,Shaanxi Polytechnic Institute,Xianyang Shaanxi 712000,China;Xi'an Sumao Medical Technology Co.,Ltd,Xi'an Shaanxi 710077,China;The 95685 Unit of the Chinese People's Liberation Army,KunMing YunNan 650600,China)

机构地区：[1]陕西工业职业技术学院航空工程学院,陕西咸阳712000 [2]西安苏茂医疗科技有限公司,陕西西安710077 [3]解放军95685部队,云南昆明650600

出　　处：《医疗装备》2024年第13期7-10,14,共5页Medical Equipment

基　　金：陕西工业职业技术学院2023年科技创新专项项目(2023YKZX-001)。

摘　　要：咬合力是衡量咀嚼功能的重要指标,目前临床尚无广泛使用的咬合力检测产品。该研究利用薄膜式力敏电阻(FSR)作为传感器,采用高精度数据采集卡和LabWindows/CVI程序设计了一种咬合力检测系统,并在50~500 N压力范围内进行了压力-电压响应特性测试和真人咬合测试。结果显示,该系统具有良好的线性响应,压力测量的平均相对误差为8.2%,灵敏度为344.827N/V,分辨率为1.68N,且咬合安装方便,可明显区分5名受试人员的咬合力差异,具备实际应用潜力。With the bite force as an important indicator for measuring chewing function,at present,there are no widely used bite force detection products in clinical practice.In this study,a bite force detection system was designed using a high-precision data acquisition card and LabWindows/CVI program,with the use of thin film force sensitive resistors(FSR)as sensors.In addition,pressure-voltage response characteristics and human bite tests were conducted within the pressure range of 50-500 N.The results showed that the system had a good linear response,with an average relative error of 8.2%in pressure measurement,a sensitivity of 344.827 N/V,a resolution power of 1.68 N,and convenient bite installation.It could clearly distinguish the differences in bite force among 5 subjects,which had practical application potential.

关 键 词：力敏电阻 咬合力 虚拟仪器软件 口腔 检测系统 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]