After finishing my last project - "Simple LC meter", there were some discussions in the forum I am a member of, that ability to measure electrolytic capacitors would be very useful in this type of device.
I searched the Web and found a very cute project named LCM3 on this Hungarian site: hobbielektronika.hu . I love Hungarian rock since my school days, but I don't know a word in Hungarian :( . So, I searched the Web again, this time for this specific project and found a Russian forum where the project was discussed in details and I got more useful information about parts, settings and so on.
Specifications of the LCM3 are (according to authors of the project):
Capacitors:
from 1pF to 1nF - resolution: 0.1pF, accuracy: 1%
from 1nF to 100nF - resolution: 1pF, accuracy: 1%
from 100nF to 1uF - resolution 1nF, accuracy: 2.5%
Electrolytic capacitors:
from 100nF to 100 000uF - resolution 1nF, accuracy: 5%
Inductance:
from 10nH to 20H - resolution 10nH, accuracy: 5%
Resistance:
from 1mOhm to 0.5Ohm - resolution 1mOhm, accuracy: 5%
Showing posts with label LC meter. Show all posts
Showing posts with label LC meter. Show all posts
Sunday, July 8, 2012
Monday, June 18, 2012
Simple LC meter
Here is another piece of laboratory equipment - LC meter. This type of meter, especially L meter is hard to find in cheap commercial multimeters. Schematic of this one came from this web page: https://sites.google.com/site/vk3bhr/home/index2-html. It uses PIC microcontroller 16F628A, and because I recently acquired a PIC programmer, I decided to test it with this project.
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