摘要
为了确保在无损检测的过程中传动的稳定性与检测的准确性以及操作的简洁高效,该文设计了一种新型的实验平台,由单片机控制步进电机驱动丝杠带动传感器移动,在裂纹检测过程中可以做到点对点移动,具体位置由显示屏显示。为了保证检测实验误差在合理区间,通过千分尺的实际位移测量与显示屏的数值比较,确定该实验平台具有良好的准确性。实验台的多传感器夹紧固定装置,利用有机玻璃材料,多种传感器线性排列,依次检测,可以顺利切换,同时避免了单一传感器带来的误差。该实验平台是多参量裂纹无损检测的基础装置,传动的准确性保证了裂纹检测的准确性,为多参量无损检测的发展提供了更进一步的借鉴。
The experimental platform is to improve transmitting stability, detecting accuracy and operating efficiency in the process of nondestructive testing. The device adopts a stepper motor based on microcontroller to drive the movement of the sensors. In the process of crack detection, each sensor can move to specific locations by operating on a resistive touch screen. Errors are guaranteed in a reasonable range by comparing the actual displacement measured by microcalliper with the value displayed on the screen. Errors which are always brought by a single sensor can be avoided by selecting organic glass as material and by detecting crack detection with various seusors which can be switched in a linear array. The experimental platform is a basic device for the non-destructive testing of multi parameters whose accuracy of transmission ensures its accuracy of detection. It provides a reference for further development of the multi parameter nondestructive testing.
出处
《机械设计与制造》
北大核心
2017年第8期213-216,共4页
Machinery Design & Manufacture
基金
国家自然科学基金资助项目(51375074)
国家重点基础研究发展计划资助项目(973计划
2011CB013400
2011CB013401)
关键词
无损检测
多参量
单片机
触摸屏
Non-Destructive Testing
Multi Parameter
Single Chip Microcomputer
Touch Screen
