What is the purpose of PLL in lock-in amplifier

Status
Not open for further replies.
C

Cye

Newbie level 5
Joined
Sep 17, 2006
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,328
lock-in amplifier circuit

What is the purpose of the phase-locked loop in the lock-in amplifier? Why cannot we apply the reference signal directly to the mixer? Thanks.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…