Is there a way to reduce the test signal voltage for a handheld LCR meter like the keysight U1733C from 740 mVrms to about 50mVrms and not alter impedance readings too much? Im doing so to test an electrochemical cell which requires an extremely low voltage applied across it.

 

Probably not.

Have your considered making a circuit of your own to measure the characteristics of interest?

 

Probably not.

Have your considered making a circuit of your own to measure the characteristics of interest?

Thanks for your reply. I am currently testing the feasibility of using a handheld lcr meter, specifically the 1733C for impedimetric measurements of the so-called randles equivalent circuit of an electrochemical cell.

 

LCR meter AT2817A offers wide frequency range (50Hz~100kHz 16 points), programmable signal level (0.01V to 2.00V), auto range with 9 ranges, 30O or 100O constant output impedance and easy-to-use operation system.
https://www.newegg.com/Product/Product.aspx?Item=9SIA7192JS2536

 

Have U considered a resistor/zener diode combination?

 

Have U considered a resistor/zener diode combination?

I dont think there are zener diodes with a zener voltage that small. Or do you have any other circuitry in mind?