500ppm-LCR

[moscadondres]

Hi all,
A LCR meter to built is in french or english ELEKTOR of april 2013,may be interesting.

[Davor]

I've seen it. It is a big overkill for my needs.

[Ferric Toes]

Hi all,
A LCR meter to built is in french or english ELEKTOR of april 2013,may be interesting.

Yes, I thought it was interesting in its inductance measuring mode as it may double as a susceptibility meter, particularly as you can change the test frequency and measure frequency dependent susceptibility - viscosity.

Eric.

[kabier]

hi ferric toes can you please kindly post it here
thanks

[Ferric Toes]

hi ferric toes can you please kindly post it here
thanks

What do you want me to post? So far, I have only read the articles in Elektor. I may build one when the loaded boards are available.

Eric.

[kabier]

hi Ferric Toes`s thanks that is what i want to build one so please let us see your progress
thanks and regards

[BillNEWAST]

kabier, ERIC isn't going to BUILD ONE! He is only going to BUY a Pre-Populated Board as below.

Here is the site to BUY the Complete Board + LCD modual AND all Tested for ONLY US $285+ ???.


http://be.eurocircuits.com/shop/Offtheshelf/product.aspx?&ano=110758-93&ad=19205&lang=en&r=elektor-pcb-service

In the Lower Right are two FREE PDF's on Usage and Calabration.

The difference in price between the populated and tested Main Board and the lcd modual isn't that much.
Personally THIS DIY insturment is massave overkill for most of what our needs are here on this site. I think most of us could get by with a $50-60 dollar LC meter and spend the difference on a GOOD Used O-Scope in the 20MHZ range.
If I was going to do this I would just buy a CHEAP China Ebay one and then see if the parts could be upgraded or just make a good Calibrated Resister and Inductor and Capacitor net work and shoot a signial from a 555 through it and measure the thing with the oscope and then Calculate the different values for the componets we used. Then use those calc's to set/0 our meters.

Here is a Very Good and basic site to find out about basic electronics AND in particular how to take resisters and make Adjustable precision resistor networks. I'm sure that the same principal can be used to to make L and C net works also.
http://www.allaboutcircuits.com/vol_1/chpt_8/12.html

Sincerely
Bill Adams

[kabier]

thanks bill i cant afford the complete board so i will check the other link
regards and have a good day

[Altra]

If you don't need the same features as the Elektor.

Search around there are plans and kits for a pic micochip LC meter. It works very well. I think the circuit was discussed here on Geotech.

Now there are prebuilt clones on ebay for less than the cost of the parts(<$30 free shipping). Search "LC meter"

http://www.ebay.com/itm/L-C-High-Pre...item27cc80265e

http://www.ebay.com/itm/High-Precisi...item43b98dd0d1