IEC 60335-1 2020 5.19 这个是啥设备
5.19 Measurements of cell voltages or battery voltages shall be made using a single pole resistive-capacitive low pass filter with a –3 dB roll off frequency of 5 kH±0,5 kHz. To determine if the upper limit charging voltage has been exceeded, the peak value of the filtered voltage shall be measured with a tolerance of ±1 %.When measuring cell voltages or battery voltages, the peak value of any superimposed ripple exceeding 10 % of the average value shall be included. Transient voltages are ignored, such as a temporary increase of voltage, for example, after the battery is removed from the charging
system.
这两段话所说的是哪种设备？
应使用单极电阻电容低通滤波器测量电池电压或电池电压，其-3 dB滚降频率为5 kHz±0.5 kHz。为确定充电电压是否超过上限，应测量过滤电压的峰值，公差为±1%。
测量电池电压或电池电压时，应包括超过平均值10%的任何叠加纹波的峰值。瞬态电压会被忽略，例如，在将蓄电池从充电系统中取出后，电压会临时升高。 smlsmlhd 发表于 2022-1-10 21:13
应使用单极电阻电容低通滤波器测量电池电压或电池电压，其-3 dB滚降频率为5 kHz±0.5 kHz。为确定充电电压 ...
请问这个单极电阻电容低通滤波器是何装置，示波器吗？
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