Lock-in amplifier
id:
lock-in-amplifier-179-1787774
title:
Lock-in amplifier
text:
A lock-in amplifier is a type of amplifier that can extract a signal with a known carrier wave from an extremely noisy environment. Depending on the dynamic reserve of the instrument, signals up to a million times smaller than noise components, potentially fairly close by in frequency, can still be reliably detected. It is essentially a homodyne detector followed by low-pass filter that is often adjustable in cut-off frequency and filter order. The device is often used to measure phase shift, ev
brand slug:
wiki
category slug:
encyclopedia
description:
Type of amplifier that emphasizes a specific frequency in a noisy signal
original url:
https://en.wikipedia.org/wiki/Lock-in_amplifier
date created:
2005-05-08T21:23:24Z
date modified:
2024-09-04T20:19:07Z
main entity:
{"identifier":"Q1752933","url":"https://www.wikidata.org/entity/Q1752933"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/a/a9/Lock-in_amplifier-bis.jpg","width":2592,"height":1944}
fields total:
13
integrity:
16