Lock-in amplifier

Details Lock-in amplifier Lock-in amplifier

1992-05-15

1993-05-11

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Modulator/demodulator

324128, 324 7641, 324 7626, 324 7644, 455324, 455314, 455316, G01R 2316

Patent

active

052104842

ABSTRACT:
A heterodyning lock-in amplifier in which the reference signal is shifted up in frequency (as in prior art designs), but then shifted back down in frequency prior to mixing with the input signal.

REFERENCES:
patent: 4061980 (1977-12-01), Sato
patent: 4568878 (1986-02-01), Bales
patent: 4696056 (1987-09-01), Morita
patent: 4742566 (1988-05-01), Nordholt
patent: 4916383 (1990-04-01), Sayers
patent: 4918748 (1990-04-01), Shahriary
patent: 5003621 (1991-03-01), Gailus

Affiliated with

Also associated with

Rating

Lock-in amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lock-in amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lock-in amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1353600