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retailer · 15th May 2021, 8:53 am

I'm working on an Owens inductance bridge and have reached the preliminary test stage, not having used a bridge type of measuring device before I'm a little unsure what to expect, I'm planning a builtin AC digital voltmeter as the null detector but for now am using my Fluke DMM. I'm getting varying results for the null voltage - it is never zero, with some chokes I can get it as low as 30mV, with commercial good quality output transfomers I can only get it down to 90mV or so, does this seem right.

15th May 2021, 8:53 am	#1
retailer Heptode Join Date: May 2005 Location: Adelaide, South Australia Posts: 541	DIY Inductance bridge I'm working on an Owens inductance bridge and have reached the preliminary test stage, not having used a bridge type of measuring device before I'm a little unsure what to expect, I'm planning a builtin AC digital voltmeter as the null detector but for now am using my Fluke DMM. I'm getting varying results for the null voltage - it is never zero, with some chokes I can get it as low as 30mV, with commercial good quality output transfomers I can only get it down to 90mV or so, does this seem right.