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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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 02 Nov 2007 22:51 LRC meter software??? |
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hello to all watching lcr meters...
I have bought and successfully built the mw1008 from mwinstruments. works really as described...
I really think it's worth the money
sorry for all the hackers... there is no schematic in the kit...the analog part is very near from the elektor lcr meter...
I'm now selling my "old" hameg 8018 on ebay...
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pavelbo
Joined: 08 Feb 2006
Posts: 13
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| 06 Nov 2007 20:04 Re: LRC meter software??? |
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| Kripton2035, i am happy that the bought kit is working properly. Wold you make some pictures of the PCBs with good quality and post them - by them i could recreate the way of the schematic. Thank you before!
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 06 Nov 2007 23:02 LRC meter software??? |
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pavelbo,
go to this page
http://www.mwinstruments.com/MW1008/MW1008_e.html
and download the assembly manual in pdf
there are very close up photos of the 3 circuit boards
regards.
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pavelbo
Joined: 08 Feb 2006
Posts: 13
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| 07 Nov 2007 7:49 Re: LRC meter software??? |
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Kripton2035,
Thank you for your replay! I see this manual but here there is only top plane of PCBs, and quality of pictures is not good. (Wires are not seable) To make shematic I need both PCBs plane - TOP and BOTTOM. If I make the shematic I upload it in forum. Please help me!
Regards!
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aProgrammer
Joined: 29 Mar 2001
Posts: 95
Helped: 6
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| 07 Nov 2007 12:57 LRC meter software??? |
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Another one, seem very great,
with full schematics
but german :
http://www.edaboard.com/ftopic54473.html
or (but german)
http://www.elv-downloads.de/service/manuals/24085-RLC_9000/24085-RLC9000.pdf
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 07 Nov 2007 14:09 LRC meter software??? |
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yes you have the full schematics of the rlc9000
... but NOT the program in the microcontroler...
and this rlc9000 is far behind the mw1008 in precision...quite 100x less !
Added after 4 minutes:
pavelbo,
I had some difficulties to close the box of the kit...so I dont want to open it again !!
but I dont like this box, I want to put it in a hameg empty hm800 box (as I sold my old hameg8018).
so when I will do this, I will take pictures, but not now !
hope you can wait a little..
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pavelbo
Joined: 08 Feb 2006
Posts: 13
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| 08 Nov 2007 9:40 Re: LRC meter software??? |
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I also have the shematic of RLC9000 but it build with many ICs. I want to make sample RLC like RLC model 41 (PeakTech 2165) and it Shematic . But it used two terminal wires to meassure DUT. Good measurment result when use four terminal configuration. See handbook .
Kripton2035:
Thank you! I wait it to make photos. I not hurry! Thks!
Sorry for my bad english.
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Snoopy_94
Joined: 13 May 2008
Posts: 5
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| 20 May 2008 21:03 Re: LRC meter software??? |
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I return on the Russian LCR.
I tried to translate the .asm code by using various translators (BabelFish, Reversi, Prompt...) It is not perfect, but it allows to understand how the device works: principle is identical to the Elektor 's LCR, with an ADC in head (integrated into the PIC16F873) and a digital treatment of the signal by DFT to extract the real and imaginary parts.
If the analog part is correct (after a corrective about the measure of the current when the 100 ohm resistor is selected) all is in the assembler's code!
I tried to compile this code (MPLAB IDE v8.10) but obtains some errors which should not be there!
I usually program in C, also if an interested person could say to me what goes not, it would be very nice.
Sorry for my bad english, I use also translators from french to english!...
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Fragrance
Joined: 26 Jul 2002
Posts: 1313
Helped: 23
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| 21 May 2008 5:15 Re: LRC meter software??? |
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| Snoopy_94 wrote: |
I return on the Russian LCR.
I tried to translate the .asm code by using various translators (BabelFish, Reversi, Prompt...) It is not perfect, but it allows to understand how the device works: principle is identical to the Elektor 's LCR, with an ADC in head (integrated into the PIC16F873) and a digital treatment of the signal by DFT to extract the real and imaginary parts.
If the analog part is correct (after a corrective about the measure of the current when the 100 ohm resistor is selected) all is in the assembler's code!
I tried to compile this code (MPLAB IDE v8.10) but obtains some errors which should not be there!
I usually program in C, also if an interested person could say to me what goes not, it would be very nice.
Sorry for my bad english, I use also translators from french to english!... |
post a direct link to web page where you get the asm file
regards
Fragrance
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Snoopy_94
Joined: 13 May 2008
Posts: 5
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| 21 May 2008 10:49 Re: LRC meter software??? |
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The original asm file is on the .rar attachement at
http://pro-radio.ru/measure/4319/
I have only translated the comments and added a Warning about the modification of 100 ohms coefficient.
Regards,
Jean-Jacques
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 25 May 2008 10:37 LRC meter software??? |
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| snoopy I gave you 100 points for the translation as I said some months ago. many thanks.
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mvs sarma
Joined: 23 Apr 2006
Posts: 147
Helped: 13
Location: Hyderabad, India.
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| 25 May 2008 20:17 Re: LRC meter software??? |
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| Borber wrote: |
| I need software for LRC meter published in Elektor 4,5,6/1997. Can somebody upload? |
You may find another FCL meter project (PIC Micro-controller based)at http://hamradio.in/circuits/fcl.php the relevent sotware is also in the same site.
measurement of R may not be difficult with any DMM.
Sarma
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Snoopy_94
Joined: 13 May 2008
Posts: 5
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| 25 May 2008 22:38 Re: LRC meter software??? |
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| Kripton2035 wrote: |
| snoopy I gave you 100 points for the translation as I said some months ago. many thanks. |
Thank Kripton2035!
Tried to compile the file, with MPLab? There are errors which I don't understand!
Jean-Jacques
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 26 May 2008 9:16 Re: LRC meter software??? |
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| mvs sarma wrote: |
You may find another FCL meter project (PIC Micro-controller based)at http://hamradio.in/circuits/fcl.php the relevent sotware is also in the same site.
measurement of R may not be difficult with any DMM.
Sarma |
it is a nice meter but
this meter is really not precise enought for what we are discussing here... sorry.
we want to measure the milliohm...
Added after 1 minutes:
| Snoopy_94 wrote: |
Tried to compile the file, with MPLab? There are errors which I don't understand!
Jean-Jacques |
did not have time to do it yet but I will soon give it a try !
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pavelbo
Joined: 08 Feb 2006
Posts: 13
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| 01 Jun 2008 7:42 Re: LRC meter software??? |
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I've found this project from Circuit cellar:
dsPIC LCR it uses new parts and the same technology as Elektor's project.
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pe0fko
Joined: 12 Sep 2008
Posts: 1
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| 12 Sep 2008 14:54 Re: LRC meter software??? |
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Maybe you may want to look at my simple LC meter with a Atmel attiny2313, asm source included. Based on the "Amateur Radio Magazine" april 2004.
http://home.ict.nl/~fredkrom/pe0fko/LCMeter/
I'm sorry the page is still in Dutch, but google will translate it.
pe0fko
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 12 Sep 2008 21:31 LRC meter software??? |
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sorry but as said some posts ago we want to measure L C and R. your meter doesnt measure R
we also want to measure the milliohm, as elektor did 10 years ago with a dsp
thanks for your message but it's not for this thread.
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narccizzo
Joined: 20 Jan 2006
Posts: 169
Helped: 4
Location: PATZCUARO,MICHOACAN,MEXICO
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| 28 Sep 2008 7:35 LRC meter software??? |
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Hi guys,
I am already done with the russian design and I am very satisfied with the performance of this tester, actually I made my own PCB design in eagle.
Thanks to Gints Oleg for sharing the plans of this simple great tool!
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 28 Sep 2008 10:34 LRC meter software??? |
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very nice narccizzo ...
can you post some picture(s) and upload us the schematic and firmware files you used to achieve your design ??? as there are lots of files on the russian site, I dont know which one to use !
best regards,
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narccizzo
Joined: 20 Jan 2006
Posts: 169
Helped: 4
Location: PATZCUARO,MICHOACAN,MEXICO
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| 02 Oct 2008 4:07 Re: LRC meter software??? |
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You can trust all the original design (except by a small error in the macro delay in the software), my design still needs some small details but anyway this is what I have so far. I had to make some small changes in the sofware but now you can assemble it without problems, follow and understand easily how the meter works. you can try to build the circuit in the protoboard It works fine on it.
I am still going to make another small changes. Take a look guys and say what do you think.
This design looks to be very easy to improve some changes and add some features like a 10KHz test, if any is interested is welcome.
regards ..
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pavelbo
Joined: 08 Feb 2006
Posts: 13
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| 03 Oct 2008 16:05 Re: LRC meter software??? |
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Congratulations narccizzo, very nice construction. Respect!
Into original shematic have problem with Ron 4053 swith. It is depending on temperature. If make new construction, replace input shematic with this examples. In this way input work better, but need additional IC 4053. Here have complite construction with this input shematic.
Is someone tried to start compiling a dsPIC RLC project of Circuit Cellar into MPLAB? I get error messages from the compiler. I can not understand what is the problem. Please help me.
Can you say what some Microcontroller is used in MV1008?
best regards,
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 03 Oct 2008 19:40 Re: LRC meter software??? |
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| pavelbo wrote: |
Can you say what some Microcontroller is used in MV1008?
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it is a upsd3312 from st microelectronics
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 04 Oct 2008 19:17 Re: LRC meter software??? |
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| pavelbo wrote: |
Into original shematic have problem with Ron 4053 swith. It is depending on temperature. If make new construction, replace input shematic with this examples. In this way input work better, but need additional IC 4053. Here have complite construction with this input shematic.
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Elektor used adg433 from analog devices to switch instead of the 4053. did some russian people try to use also this circuit to replace the 4053 ???
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pavelbo
Joined: 08 Feb 2006
Posts: 13
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| 06 Oct 2008 12:45 Re: LRC meter software??? |
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I have not seen such a project in Russian sites. Perhaps because of AD integrated circuits are more expensive and difficult to find the Russian market.
If you see such a project will post link.
best regards,
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narccizzo
Joined: 20 Jan 2006
Posts: 169
Helped: 4
Location: PATZCUARO,MICHOACAN,MEXICO
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| 08 Oct 2008 4:09 LRC meter software??? |
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The complete work in action...
Now I'm going to fix the temp issue and make all the internal calibration easier.
All project files are contained in the LCR 0.9.rar file posted above. The voltage reference IC is MCP1541 (4096mV). Any question or suggestion.. let me know.
Regards.
Last edited by narccizzo on 10 Oct 2008 5:17; edited 1 time in total |
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mvs sarma
Joined: 23 Apr 2006
Posts: 147
Helped: 13
Location: Hyderabad, India.
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| 08 Oct 2008 8:06 Re: LRC meter software??? |
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| Kripton2035 wrote: |
hi,
as this version is not proven to work correctly, I have stopped the translation work...and I'm now planning to buy the kit from mwinstruments, better chances to work correctly. the precision of the lcr meter is critical... 150 euros for the kit is really cheap for that kind of instrument i think. |
If R is not a must, why not try for Phil Rice(Australia) version of LC Meter2. he has given full info in his websites.
http://ironbark.bendigo.latrobe.edu.au/~rice/lc/
though a total shift from 8051 series. the design with 16F628 appeals to me as optimal design. Full support and source code provided.
The original version is from Niel of US and he claims to have measured 1pF and 1n(nano)H on his LC Meter II B . and he sells Kits and ready made even. look at www.aade.com ( no source code and the Chip is code protected)
all the best,
Sarma
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Kripton2035
Joined: 19 Jul 2001
Posts: 419
Helped: 8
Location: Earth
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| 08 Oct 2008 11:57 LRC meter software??? |
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@mvs sarma:
as you can see the title of this thread is "LCR meter", and not "LC meter" ... there are lots of threads with this LC meter and all the derivatives, open source or not.
but this is not our quest... we want an lcr meter as good as the lcr meter that elektor formerly described with a analog devices dsp as main component and that was able to measure the milliohm.
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