汽车熔断器电压降测量系统的设计与实现  

Design and Realization of Fuse-links Voltage Drop Measurement System for Motor Vehicles

作　　者：薛小铃[1] 贾俊荣[1] 

机构地区：[1]闽江学院物理学与电子信息工程系,福建福州350108

出　　处：《计算机测量与控制》2010年第12期2713-2715,共3页Computer Measurement &Control

摘　　要：针对目前常用万用表手工测量汽车用熔断器电压降的现状,以SoC单片机C8051F330为核心,开发了一种汽车用熔断器电压降智能化在线测量系统;系统采用新颖的限幅电路,节省了熔断器在线检测的硬件开销;采用线性光耦、数字滤波和过采样技术,提高了系统的抗干扰能力和测量精度;通过实际测试,系统运行稳定可靠,操作简单,测量精度在3mV以内,该系统大大提高了测试效率,满足了熔断器生产商的测试需要。Based on the status quo of mutlimeter used to measure fuse-links voltage drop,a new on-line fuse-links voltage drop measurement system for motor vehicles is developed herein,centering on SoC MCU C8051F330.The new system has adopted new limiter circuit,which brings down the cost of fuse-links used for on-line measurement,and has applied technologies like linear optocoupler,digital filtering and oversampling,which strengthens anti-interference and improves precision.After testing of the system,the results show that the system is stable,reliable,easy to handle,efficient,and,the measuring precision is less than 3mV,finally,it meets the needs of the test of the fuse-links manufacture corporations.

关 键 词：熔断器电压降 SOC单片机 在线测量 抗干扰 

分 类 号：TP274.5[自动化与计算机技术—检测技术与自动化装置]