| Home | Terms of Use | Site Map | Contact Us |
IndustryCommunity.com > Electrical and Electronic Community > Analog Circuit Design Forum > Message
Main Menu

[ List Subjects ][ Main Page ]
[ View Followups ][ Post Followup ]

Subject: Re: log-antilog multiplier

Date: 01/06/03 at 6:09 PM
Posted by: xwindy
E-mail: min.xu@ic.ac.uk
Message Posted:

In Reply to: Re: log-antilog multiplier posted by Russ Kincaid on 01/06/03 at 3:58 PM:

The lock-in amplifier works like a phase comparator. The input of the multiplier is two signal have same frequence but different phase.
After the multiplier follows a low pass filter, which gives out an DC signal equals sin(phase)

Follow Ups:

Post a Follow-up:


Message to Post:


1999-2001 Sunlit Technology Co., Ltd. All rights reserved.