MJLorton Solar Power and Electronic Measurement Equipment Forum

New proof of concept ideas, projects, inventions => New proof of concept ideas, projects, inventions => Topic started by: Adrian on June 14, 2013, 03:09:00 PM

Title: Homemade esr meter!
Post by: Adrian on June 14, 2013, 03:09:00 PM

Hi from Romania! ;)
This is my first post on the forum... 8).and i like to present to you my homemade esr meter!
The original schematic,pcb and ideas can be find in this web site:
http://members.shaw.ca/swstuff/esrmeter.html
Some pictures:
http://imageshack.us/photo/my-images/801/966k.jpg/
http://imageshack.us/photo/my-images/854/7wuz.jpg/
http://imageshack.us/photo/my-images/593/bqmx.jpg/
The two leads go to the analog multimeter!
http://imageshack.us/photo/my-images/12/multimeteryx360trd.jpg/
P.S Sorry for the crap language.. :'(.i am learning to write! ;D

Title: Re: Homemade esr meter!
Post by: runem on July 26, 2013, 03:40:11 PM

Excellent!
You did a good job here. In fact, way better than i did when I was at your age. Hope your success inspires you to the next project. Keep 'er up! :)
I did a similar ESR meter based on the same schematic, a couple of years ago. But, I simplified it a bit (in my opinion) by using a LM311 as a signal source and then fed the signal to a little transformer (I rewound it) robbed from a CFL power supply.
Don't worry too much about your english.

Title: Re: Homemade esr meter!
Post by: Adrian on July 30, 2013, 09:55:55 AM

Thanks ;D
Now i'm working on a digital esr meter!
http://www.mario001.de/elektronik/schaltungen/esrmeter.html
70% is finished 8)

Title: Re: Homemade esr meter!
Post by: MJLorton on July 30, 2013, 12:57:30 PM

Hello Adrian...I missed this first post...hats off to you and thanks for the post. Do keep up the great work!

Cheers,
Martin.