Real-Time Measurement and Control

cancel
Showing results for 
Search instead for 
Did you mean: 

Internal reference of SR 830 lock in amplifier vs Optical chopper frequency or Function generator

I would like to know, When do I need an optical chopper as a reference frequency to measure light intensity using SR-830 lock-in amplifier? Can I use an internal reference or external reference from a function generator instead of an optical chopper to measure noise free light intensity?

Thanks in advance.

0 Kudos
Message 1 of 1
(1,960 Views)