电流型地感线圈测速仪检定装置  

Current Mode Calibrating Apparatus for Ground Induction Coils Velocimeter

作　　者：叶振洲 严瑾[1] 林峰[1] 邵建文[1] 

机构地区：[1]浙江省计量科学研究院化学与环境计量研究所,浙江杭州310013

出　　处：《轻工机械》2012年第2期57-59,共3页Light Industry Machinery

摘　　要：设计了一套电流型地感线圈测速仪检定装置。与传统的检定装置使用开关干扰信号相比,该装置选择电流信号作为干扰信号,用以模拟车辆经过地感线圈时所引起地感线圈电感量的变化。采用ARM9单片机,Linux操作系统作为开发平台完成装置的软硬件开发,并对干扰线圈的选择进行了研究。现场测试结果表明,该装置适用于各个厂家的地感线圈测速仪的检定,且具有便于携带,准确率高等优点。An current mode calibration apparatus for ground induction coils velocimeter was developed. Compared with the traditional calibration apparatus, the paper chose current signal as the interference signal in stead of the switch signal for the simulation of the inductance change when the vehicle pass the ground induction coil; adopted ARM9 singlechip and Linux operating system as the platform for the software and hardware development, and analyzed the choice of interference coils. The field test results indicate that the calibration apparatus is applicabl,e to the ground induction coils by different manufacturer, and has the advantages of convenience for carrying, high rate of accuracy, and so on. [ Ch, 5 fig. 9 ref. ]

关 键 词：计量 检定装置 电流干扰信号 地感线圈测速仪 

分 类 号：TM933.4[电气工程—电力电子与电力传动]