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6221 with lock-in amplifier

6220, 6221 Current Sources
Posts: 2
Joined: May 20th, 2015, 4:25 am
Country: United Kingdom

Re: 6221 with lock-in amplifier

Post by dmccann » May 21st, 2015, 1:36 am

Dale C wrote:That is correct.
The phase maker pulse is normally +5V.
When it outputs a pulse, it goes to 0V for the 1usec then back up to 5V.
So because the pulse is a drop of 5V to 0V then it is correct to use 'Neg Edge' option for detecting this pulse on the lock-in then?

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