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中文摘要：
为测试蓄电池的欧姆内阻和极化内阻,并提高其测量精度,提出一种由方波发生器构成的测试电路进行测试的方法。为消除浮充状态下充电器纹波电压对内阻测量数据的干扰,提出一种欧姆内阻测量的抑制纹波电压干扰的方法,即对多个测量数据求平均值的方法。欧姆内阻测量方法的特点是：不必等测试电路达到稳态,因而节省测试时间,避免能量浪费;与传统的测量方法相比,采用较小的测试电流即可获得精确的欧姆内阻测量结果。
英文摘要：
In order to measure the Ohm and polarization internal resistance of a battery and improve their precisions, a method using the test circuit including a square wave generator was presented. In order to eliminate the disturbance of charger voltage ripple in a floating state, a method of Ohm internal resistance measure was presented, which restrains ripple by averaging a group of Ohm internal resistances. The merits of the method are： it can measure Ohm internal resistances before the test circuit attains steady-state, thus the measure time is shorten, and the energy waste is avoided; compared with traditional one, the method can obtain exact Ohm internal resistances resuk by using small test current.
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