随着国内城市建设的发展,各种公用设施(如:桥梁、道路),大中型城市建筑相继问世,为了提高和保证结构的质量,发现和控制结构的缺陷,防止重大事故的发生,做为混凝土非破损检测技术中的一个重要内容——“混凝土中钢筋位置及保护层厚度的电磁检测技术”已得到广泛的开展和应用。 With the development of domestic urban construction, all kinds of public facilities (such as bridges and roads) and large and medium-sized urban buildings have come out in succession. In order to improve and ensure the quality of structures, discover and control the defects of structures and prevent the occurrence of major accidents, An Important Content in Non-Destructive Testing Techniques of Concrete - “Electromagnetic Testing Techniques for the Location of Reinforcing Bars and Thickness of Protective Coatings in Concrete” has been extensively developed and applied.