磁轭式磁粉探伤机工作原理及计量校准方案研究

Research on working principle and measurement calibration scheme of yoke magnetic particle flaw detector

目的合理设置磁轭式磁粉探伤机计量校准方案并实施,具体包括校准需求分析、校准前准备、校准实施、校准后作业、校准工作总结分析等内容,提升磁轭式磁粉探伤机的提升力、安全性、磁导率和灵敏度。方法以CDX-Ⅲ磁轭式磁粉探伤机为例,合理进行校准实施准备、工作环境模拟、通电检查、绝缘电阻和强度试验、电流误差测试、电流测量装置接入、灵敏度检测等具体方案设计,采用实验研究法,通过实验结果分析校准方案合理性。结果通过本次计量校准方案的使用,可以提升磁轭式磁粉探伤机提升力、安全性、磁导率和灵敏度,达到国家计量标准和要求。结论本次的计量校准方案具有系统性和精细性特点,并注重使用环境模拟,增强其实用性及合理性,较为全面和精准,值得推广使用。

Objective Reasonably set up and implement the measurement and calibration scheme of the yoke magnetic particle flaw detector,including calibration demand analysis,calibration preparation,calibration implementation,calibration work after calibration,calibration summary and analysis,etc.,to improve the lifting force,safety,permeability and sensitivity of the yoke magnetic particle flaw detector.Methods Taking the CDX-Ⅲmagnetic yoke magnetic particle flaw detection machine as an example,the calibration implementation preparation,working environment simulation,power inspection,insulation resistance and strength test,current error test,current measuring device access,sensitivity detection and other specific schemes were reasonably designed.Experimental research method was adopted to analyze the rationality of the calibration scheme through experimental results.Results Through the use of this measurement calibration scheme,the lifting force,safety,permeability and sensitivity of the yoke magnetic particle flaw detection machine can be improved to meet the national metrology standards and requirements.Conclusion This measurement calibration scheme has systematic and fine characteristics,and pays attention to the use of environmental simulation,enhance its practicality and rationality,more comprehensive and accurate,worthy of promotion and use.