Precision Lock In Amplifier

Precision Lock-in Amplifier
...with unique fiber optic link to prevent digital
switching noise entering the experiment

    the new standard for measurements in:
low temperature physics
electrical engineering
electrochemistry
optics
...
    An all-analog front-end generating no digital clock or
switching noise with fiber optic connections to a
powerful DSP based instrument console

  SIGNAL RECOVERY is therefore proud to introduce the model 7124 precision lock-in
amplifier, which is particularly suited to such work. It uses a unique analog fiber optic
link to interconnect a remote connection unit (RCU), to which the experiment is
connected, and a main instrument console. In normal operation there are no digital
clock signals within the RCU, and so it can emit no switching noise.
This architecture gives an instrument with all the advantages of the latest DSP
technology for signal detection, and a powerful processor for easy user operation, as
well as the low noise performance that until now has only be available in instruments of
all-analog design.