This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

INA149使用问题

Other Parts Discussed in Thread: INA148, INA149

请教,使用INA149或者148测量蓄电池组(110节,总电压220V)时,是否需要将蓄电池组的最后一节电池的负极,接到INA148或INA149的地?也就说蓄电池的地是否需要和INA148、INA149的地相连?

另外如果采用仪用放大器测量微弱信号时候,信号的地需要和仪用放大器的地相连吗?