Research on Quick Quality Detection of Box Liquid Milk with Nondestructive Testing Method

摘要：

According to the rheological theory in liquid milk quality degeneration process ， imitating the free attenuation torsional vibration method in liquid viscosity measurement, an automatic detecting system is established to detect the quality of box liquid milk with Nondestructive testing method. The system ,which is composed of mass block (holding plate with box liquid milk), torsional spring and damper, can produce free evanescent pendulum vibration driven by the step motor. Then computer processes and analyzes the torsional vibration signal measured by the accurate angle displacement transducer, calculates the frequency and damping coefficient of the signal and compares it with standard samples to judge the quality of product. The experimental result indicates that the method ,with the characteristics of low measure costs and high measure precision ,is the best substitute products of the traditional unpacking detecting method

关键词： box liquid milk quality damping coefficient vibration nondestructive testing

作者: SHI Xianjiang WANG Xin HAN Liguang LI Shidi

作者单位: Mechanical & Power Engineering College, Harbin University of Science and Technology, Harbin, 150080 Mechanical Engineering College, Yanshan University, Qinhuangdao, 066004 Heilongjiang Longze Technology Co. Ltd., Harbin 150036

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）