基于应变片压阻效应的柔性传感器阵列的设计  

Design of Flexible Sensor Array Based on Strain Gauge Piezoresistive Effect

作　　者：肖立志[1] 郭兰申[1] 张磊[1] XIAO Li-zhi GUO Lan-shen ZHANG Lei(School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China)

机构地区：[1]河北工业大学机械工程学院,天津300130

出　　处：《仪表技术与传感器》2017年第7期4-6,19,共4页Instrument Technique and Sensor

摘　　要：为了使应用于机器人"皮肤"的传感器满足柔性、可阵列化和灵敏度高的需求,在传统应变式压力传感器的基础上,提出了基于应变片的压阻式柔性压力传感器的设计方案。在实验室条件下,应用三元乙丙橡胶作为弹性元件,制作柔性压力传感器,根据应变片的压阻效应可知,在弹性元件表面的压力值与电阻的变化存在对应关系。为了能够快速识别每个传感器单元的受力信息,采用行扫描法对传感器阵列逐行扫描。为了能够大面积覆盖,采用FPC连接器对柔性传感器阵列块与块之间进行连接,以及进行传感器阵列与控制板之间信号的传递。To meet the need of robot ＂skin＂ sensor＇s flexibility, integrating and high sensitivity, on the basis of the strain type pressure sensor, the design of piezoresistive flexible pressure sensor based on strain gauge was presented. Under laboratory, conditions, the application of EPDM was used as the elastic element to make flexible pressure sensor.According to the the piezoresistive effect of strain gauge, there exists corresponding relationship between the pressure value on the elastic element surface and the change of the resistance.In order to be able to quickly identify the force information of each sensor unit, progressive scan method was used to scan sensor array.To be able to cover large areas, FPC connector was used for transmitting signals to the flexible sensor array connected between the blocks, and the sensor array was connected with the control board to transmit signals.

关 键 词：机器人 柔性 压力传感器 压阻效应 弹性元件 行扫描法 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]