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Richard Erlacher
10/06/12 14:04
Read: 535 times
Denver, Co
USA


 
#188595 - I've considered the LCR meter approach ...
Responding to: Joseph Hebert's previous message
... but ... the reasonably priced portables aren't accurate enough, nor have they enough range to be really useful, and the ones that are useful are too large and costly. If you have a range within which you're measuring, e.g. in order to select cap's for a timing circuit, particularly for a PLL or, or as a filter component where precise values are critical, it's probably worth your time to build a couple of circuits to measure the C and L, and with critical cap's, the ESR as well. For some things, the cap's have got to be just right.

Now, portability may not be a priority for you, and I'd consider a benchtop LC meter now that I'm not moving around so much. I'd recommend replacing all the electrolytic cap's in an old "experienced" (older than 15 years) one, though.

RE


List of 8 messages in thread
TopicAuthorDate
measuring reactive component values      Joseph Hebert      10/05/12 16:47      
   measuring reactive component values      Joseph Hebert      10/06/12 10:15      
      What cap are we talking about?      Kai Klaas      10/07/12 07:08      
         This is what I'm wondering about.      Joseph Hebert      10/07/12 12:05      
   C and ESR and inductance      Mahmood Elnasser      10/06/12 13:25      
   I've considered the LCR meter approach ...      Richard Erlacher      10/06/12 14:04      
   Qmeter      Daniel Contarino      10/06/12 18:51      
   Buy or make?      Oliver Sedlacek      10/08/12 04:26      

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