Arfa Daily wrote:

"Franc Zabkar" wrote in message
...

On Wed, 31 Dec 2008 01:48:42 -0000, "Arfa Daily"
put finger to keyboard and composed:


My Bob Parker meter works at around 100kHz ...

Arfa

The following diagram and flowchart indicate that, at least for the
Mark 2 design, the capacitor under test is pulsed with 8us constant
current pulses repeated every 500us:

http://us1.webpublications.com.au/st...100895_3mg.jpg
http://us1.webpublications.com.au/st...100895_2mg.jpg

- Franc Zabkar


That does appear to be so. Without looking it up, I just had it fixed in my
head that it was around 100kHz. With the fact that it is a highly asymmetric
waveform, duty factor-wise, I guess that it's hard to quote it as an actual
frequency. It's sort of 100+ kHz 'width' pulses, repeated at a frequency of
2kHz ...

Arfa


So, its a 2 Khz signal with 2000/100000 = 2 % duty cycle =

1/2000*0.02*0.5 = 5 uS(+) pulse


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