采用恒流放电的方法，智能检测铅酸蓄电池容量和内阻。在该方法的基础上设计了一款铅酸蓄电池智能检测仪，该检测仪以C8051f350单片机作为主控芯片，采用了PID算法、片内高精度信号转换电路和新型集成驱动电路。可根据实际情况适时调整放电电流。详细叙述了检测仪的检测原理、电路设计和软件设计，并提出了设计时的关键技术问题。该检测仪具有使用方便、可靠性高、检测精度高等优点。%Based on constant current discharge, an intelligent detection method for lead-acid battery capacity and internal resistance was introduced. Based on this method, an intelligent detector for lead-acid battery was designed. Its main control chip was C8051f350MCU. A PID algorithm, some signal converting circuits in C8051f350MCU and some advanced integrated circuits were adopted. Discharge current could be properly adjusted according to actual situation. The detection theory, some methods of circuit design .and soft design about this detector were described in detail. Some key techniques about the design of detector were put forward. The detector has the advantages of easy to be operated, high reliability, high-precision of detection.
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