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ＩＶＡ－１型智能三维振动加速度监测仪是为了满足对火车、汽车等运输 工具的振动与冲击进行实时监测的需要，确保重型、精密和贵重仪器设备 的安全运输而研制出的一种新型便携式振动测量仪器．它的测试系统采用 了先进的三维组合压阻式加速宏传感器，并以８０Ｃ３１单片机为核心，配有 Ａ／Ｄ转换器、键盘、液晶显示器和智能微型打印机等；在软件上具有系统实 时时钟、零点偏差的初始校正、连续测量或长时间监测等功能，使三维振动 加速度的测量实现了数字化和智能化；可直接应用于铁路、公路，以及其他 工程领域中的低频振动测量（即所谓“陆用黑匣子”）．
IVA-1 intelligent three-dimensional vibration acceleration monitor is to meet the real-time monitoring of the vibration of vehicles and other means of transport needs and shock, to ensure the safe transportation of heavy equipment, precision and expensive equipment and developed a new type of portable vibration measuring instrument. Its test system uses an advanced three-dimensional combination of piezoresistive acceleration macro sensor, and 80C31 microcontroller as the core, with A / D converter, keyboard, LCD and smart micro-printer; software in the system with real-time clock, Zero offset correction, continuous measurement or long-term monitoring and other functions, the three-dimensional vibration acceleration measurement to achieve digital and intelligent; can be directly applied to railway, highway, and other fields of low frequency vibration measurement (the so-called “land Use black box ”).