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egealtay
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« on: August 31, 2007, 04:11:02 16:11 »

http://electronics-diy.com/lc_meter.php
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corbo
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« Reply #1 on: January 18, 2008, 01:44:14 13:44 »

 LCF meter

   C - 1pF to 2500uF
   L -  0,070uH to 15H
 HF -  15Hz to 46MHz
UHF - 25 MHz to 1,3GHz

http://rapidshare.com/files/84742732/LCF_Meter.rar
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« Reply #2 on: January 18, 2008, 10:33:36 22:33 »

@ egealtay
link error
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gianmagna
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« Reply #3 on: January 18, 2008, 11:08:48 23:08 »


this link is correct  Grin

http://www.electronics-diy.com/lc_meter.php
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yahoo
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« Reply #4 on: January 19, 2008, 01:36:51 01:36 »

It's a very accurate LC meter. I have it working from years. Highly recommended! I cannot see the link for the firmware but if somebody is interested I can provide it.
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omni
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« Reply #5 on: January 19, 2008, 05:41:16 05:41 »

Digital LC Meter Version 2 (PIC 16F628)

http://ironbark.bendigo.latrobe.edu.au/%7Erice/lc/index2.html
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hodahel
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« Reply #6 on: January 20, 2008, 08:00:01 08:00 »

Hope somebody can revised it to used Nokia LCD like 3310...it's hard to find that kind of lcd..
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mayli
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« Reply #7 on: January 21, 2008, 01:51:50 01:51 »

Digital LC Meter Version 2 (PIC 16F628)

http://ironbark.bendigo.latrobe.edu.au/%7Erice/lc/index2.html

All the material inside above web page has been removed. Can anyone body post them again? Embarrassed

Thank you
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hemlig
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« Reply #8 on: January 21, 2008, 02:45:34 02:45 »

@mayli

It is still there when I tested the link after your posting.
Maybe you should clear the cache in your browser.
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TA5CT
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« Reply #9 on: January 21, 2008, 04:35:21 16:35 »

you can visit this web page.

http://www.sprut.de/electronic/pic/projekte/lcmeter/lcmeter.htm
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pickit2
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There is no evidence that I muted SoNsIvRi


« Reply #10 on: January 23, 2008, 12:53:46 00:53 »

Hope somebody can revised it to used Nokia LCD like 3310...it's hard to find that kind of lcd..
Did your try local alarm installer, I get faulty control panels from mine. most are 2x16 but also 4x32 upto 4x40 cost a few beers.
some I have put on e-bay Smiley
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hodahel
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« Reply #11 on: January 28, 2011, 09:20:15 09:20 »

After how many years..I'm back on this thread to update... Grin

I successfully built my LC Meter...














Reading on 33pF ceramic caps..




15pF..




2.2nF



1000pF 1nF




Seems weird on coil..

here is a reading for 100uH coil.



another 100uH




I wonder if who's telling the truth...the Coil or the meter?  Sad


@MODS

Please Delete if I'm reviving OLD THREAD for no reason...


TIA
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pickit2
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« Reply #12 on: January 28, 2011, 01:59:28 13:59 »

hodahel
Not a problem with post, but why not post it as a full project in projects forum.
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hate
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« Reply #13 on: January 28, 2011, 06:15:48 18:15 »

Quote
I wonder if who's telling the truth...the Coil or the meter?  Sad
In a similar version of this project the author inserted a calibration code, I didn't check if there is also one in this one but the heating up time of the components greatly affect measurements. The system must be calibrated after some time after it is powered. I had made the similar project I mentioned and when calibrated after a few minutes after it was powered the errors were acceptable.

Regards...
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mris99
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« Reply #14 on: January 28, 2011, 08:28:35 20:28 »

Hi,

I am thinking of building this one:
http://www.hobbielektronika.hu/kapcsolasok/lcm3_alkatresz_mero_muszer_-_kit_lehetoseg.html

Sorry, it is hungarian, but you can use google translate:
http://translate.google.com/translate?js=n&prev=_t&hl=hu&ie=UTF-8&layout=2&eotf=1&sl=hu&tl=en&u=http%3A%2F%2Fwww.hobbielektronika.hu%2Fkapcsolasok%2Flcm3_alkatresz_mero_muszer_-_kit_lehetoseg.html

capacitance 1pF ... 0.1F
inductance 10nH ... 20H
ESR up to 500mOhm
In circuit ESR measurement

It measures also the capacitance of inducttors, and correcte the inductance measurement with this.

Best regards,
mris
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metal
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« Reply #15 on: January 28, 2011, 11:01:00 23:01 »

are there any links hate for the calibrated version?
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cicos
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« Reply #16 on: January 29, 2011, 01:15:08 01:15 »

http://www.marc.org.au/

Poz
JaMi
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hodahel
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« Reply #17 on: January 29, 2011, 03:46:51 03:46 »

hodahel
Not a problem with post, but why not post it as a full project in projects forum.

just wanted to..but still gathering enough documentation for posting as full project..Cheesy



In a similar version of this project the author inserted a calibration code, I didn't check if there is also one in this one but the heating up time of the components greatly affect measurements. The system must be calibrated after some time after it is powered. I had made the similar project I mentioned and when calibrated after a few minutes after it was powered the errors were acceptable.

This version includes calibration via software...also has the option to manually calibrate to standard value...

The problem I encountered with the INDUCTOR side is the coil itself....it was marked with 100uH but reads 82uH...tried other coils and they all give close to printed values reading...



are there any links hate for the calibrated version?

This is the version I constructed....

http://sites.google.com/site/vk3bhr/home/index2-html
« Last Edit: January 29, 2011, 03:58:07 03:58 by hodahel » Logged
hate
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« Reply #18 on: January 29, 2011, 12:30:41 12:30 »

@hodahel: Sry I couldn't notice a button for calibration in ur pics and considered it didn't have calibration. It might be a tolerance and brand issue for the bad readings.

@metal: It's been a long time since I constructed it and don't remember which one I constructed but the hardware was the same with the ones posted here. Probably just a clone. I have the schematic and code though, I can post them if u like.

Regards...
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bbarney
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« Reply #19 on: January 29, 2011, 04:31:36 16:31 »

Hi,

I am thinking of building this one:
http://www.hobbielektronika.hu/kapcsolasok/lcm3_alkatresz_mero_muszer_-_kit_lehetoseg.html

Sorry, it is hungarian, but you can use google translate:
http://translate.google.com/translate?js=n&prev=_t&hl=hu&ie=UTF-8&layout=2&eotf=1&sl=hu&tl=en&u=http%3A%2F%2Fwww.hobbielektronika.hu%2Fkapcsolasok%2Flcm3_alkatresz_mero_muszer_-_kit_lehetoseg.html

capacitance 1pF ... 0.1F
inductance 10nH ... 20H
ESR up to 500mOhm
In circuit ESR measurement

It measures also the capacitance of inducttors, and correcte the inductance measurement with this.

Best regards,
mris


Nice one , let us know if you build it
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hodahel
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« Reply #20 on: February 01, 2011, 04:39:24 04:39 »

@hodahel: Sry I couldn't notice a button for calibration in ur pics and considered it didn't have calibration. It might be a tolerance and brand issue for the bad readings.

The image image above was taken when was I was just stuffing the board with parts..Cheesy

I'll upload the complete image later...


EDIT: Here is the picture of complete project....the RESET switch is right beside the LED...Cheesy






Nice one , let us know if you build it

I'm into building this one too...bit hesitant because of language used on that site..
« Last Edit: February 01, 2011, 04:46:19 04:46 by hodahel » Logged
Tahmeed
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« Reply #21 on: September 09, 2011, 05:28:05 17:28 »

hey is there any version for AVR??? I have an atmega8....
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« Reply #22 on: September 09, 2011, 05:46:22 17:46 »

@Tahmeed
watch this
http://home.ict.nl/~fredkrom/pe0fko/LCMeter/
http://www.avrprojects.info/avr-projects/capacitance-and-inductance-meter-using-atmega8/

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