数字式超声波钢轨探伤仪检定方案分析  

Analysis of Verification Scheme for Digital Ultrasonic Flaw Detector of Rrail

作　　者：包磊[1] 曹青松[2] 刘志洋[2] 

机构地区：[1]南昌铁路局技术监督所,江西南昌330002 [2]华东交通大学机电工程学院,江西南昌330013

出　　处：《铁道技术监督》2014年第9期23-24,30,共3页Railway Quality Control

摘　　要：依据EN 12668-1:2004《无损检测—超声检查设备的表征及验证—仪器》和TB/T 2340—2012《钢轨超声波探伤仪》,对数字式超声波钢轨探伤仪的检定方案进行分析,重点剖析数字式钢轨探伤仪的时基线性、数字采样误差和响应时间等性能指标的检定方法,分别给出检定这3项指标的测试曲线。为开展新型探伤仪检定仪的研制、检定规程的制定以及数字探伤仪的现场检定提供借鉴。Verification scheme for digital ultrasonic flaw detector of rail is analyzed according to EN 12668-11 A1 ： 2004 ＂Non-destructive Testing---Characterization and Verification of Ultrasonic Examination Equipment-- Instruments＂ and TB/T 2340＂--2011 ＂Ultrasonic Testing Detector of Rail＂ . The authors focus on the verification methods for three performance indexes which are time base linerity, digitisation sampling error and response time of digital flaw detector for rail. Schematic diagram of calibration for these three indexes are provided respectively. This paper maybe gives reference for developing calibrator for new type of flaw detector and formulating of verification regulation, and calibration of digital flaw detector at the work site.

关 键 词：数字式超声波探伤仪 钢轨 校准 检定规程 

分 类 号：TH878.2[机械工程—仪器科学与技术]