----- Original Message ----- From: "konnylagarde2002" <alagarde@...> To: <hp_agilent_equipment@...> Sent: Friday, November 02, 2007 1:50 PM Subject: [hp_agilent_equipment] Re: ESR Meter Design
In reply to your comment below: The test voltage across the leads is under 100 mv and capacitors do NOT need to be out of the circuit to test.... ac power does not in any compromise the functionality of the instrument and has some advantages as explained in the description.
The choice of battery only power is mine. I simply don't want an AC powered ESR meter. End of story.
However, I'm glad to see that the excitation is kept at the 'traditional' 100 mV level. That will indeed allow in-circuit testing.
While I can't see what this will do that my Dick Smith ESR meter doesn't, the all-analog approach is interesting. I may build one anyway, just to play with it.
