Electronics > Projects, Designs, and Technical Stuff

ESR meter again...

(1/2) > >>

zaoka:
From all of the schematics available online does any have large scale from 0-1R?? This is most important measurement range and most of the schematics are built so that 0-1R range takes only 5% of the full analog meter deflection...

I would love to build one meter that has 2 ranges:

0 - 50R
0 - 5R

This way we can test those 1000uF and up with accuracy.

 ::) ;D

Psi:
probably not the answer you were looking for but personally id buy one rather than build one. I'm not really a fan of building test equipment when a bought one is available at a good price and is likely to be better anyway.

Having said that, you do learn a lot from making your own gear so if thats the goal, go for it.


If i needed one id probably buy this for ~ US$129 + $12pnp
(I'm quite pleased with my LCR and component tester from them)

http://www.peakelec.co.uk/acatalog/jz_esr70.html


* Measure capacitance and ESR.
* New enhanced dynamic range of 0.00 to 40.0 ohms.
* ESR Resolution as fine as 0.01 ohms
* Supports capacitors from 1uF to 22,000uF.
* Capable of In-Circuit measurement of ESR.
* Polarity free, connect any way round.
* Great for low DC resistance checking too
* Protected against highly charged capacitors
* Tests at the industry standard 100kHz.
* Automatically carries out a controlled discharge procedure

They also make a cheaper one for US$109 which only goes to 20R instead of 40R
http://www.peakelec.co.uk/acatalog/jz_esr60.html

tjw:
Hi,
    have you seen Bob Parker's ESR meter ? Have a look here http://members.ozemail.com.au/~bobpar/

It uses a Zilog Z8 MCU and is a top class product. Full schematic and a description of the circuit operation is supplied with the kit. Bob has a lot of information on his site about the meter and how to use it.

I have built one and prefer it to a commercial unit since I can fix it if there are problems and I learnt something along the way.

I recall that these kits were being sold in the US a few years ago, but cannot remember who was selling it. In Australia you can get it here http://www.altronics.com.au/index.asp?area=item&id=K2574


Regards, tjw.

tyblu:
Great link tjw

Zyvek:

--- Quote from: Psi on December 30, 2010, 02:31:39 am ---
If i needed one id probably buy this for ~ US$129 + $12pnp
(I'm quite pleased with my LCR and component tester from them)

http://www.peakelec.co.uk/acatalog/jz_esr70.html


--- End quote ---

I have this meter and I'm pretty happy with it, I also considered the Blue ESR  Bob Parker meter as well, but I liked the extra bells and whistles the ESR70 provided. I'd love to see a head to head comparison.

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version