Tag Archives: lock-in amplifier

22nd Day of Christmas: Lock-in Amplifier

This Advent during the 24 days leading up to Christmas I thought it would be fun to have a quick introduction of scientific apparatus, in particular tools used in atomic physics research. This is a way to say thanks to their hard work for our research, and a look at how many things are really needed to make a laboratory work!

Lock-in Amplifier

In atomic physics a lot of measurements involve very tiny data signals on a big background signal and likely big noise too. We have to be clever about how to set up the experiment so we can get the most out of our data signals. When we have a variable background that we control, we can use a lock-in amplifier to remove that base and amplify our measurement signal.

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