A Simple Low-Cost Lock-In Amplifier for the Laboratory

The construction of a simple, low-cost, stand-alone lock-in amplifier suitable for physical and analytical chemistry instructional laboratories is described. The instrument is useful for detecting and amplifying signals that are in-phase with a reference signal and is particularly important for opti...

Full description

Saved in:
Bibliographic Details
Published in:Journal of chemical education 2005-09, Vol.82 (9), p.1399
Main Authors: Sengupta, Sandip K, Farnham, Jessica M, Whitten, James E
Format: Article
Language:English
Subjects:
Chemistry
Construction costs
Experiments
Instrumentation
Integrated circuits
Laboratories
Laboratory Equipment
Lock in amplifiers
Low cost
Organic chemistry
Science Education
Science Equipment
Scientific apparatus & instruments
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-a310t-cc1ad716d7b1843318d2e254c7a91714607f4dc81937a8706015c8a447486c413
cites
container_end_page
container_issue 9
container_start_page 1399
container_title Journal of chemical education
container_volume 82
creator Sengupta, Sandip K
Farnham, Jessica M
Whitten, James E
description The construction of a simple, low-cost, stand-alone lock-in amplifier suitable for physical and analytical chemistry instructional laboratories is described. The instrument is useful for detecting and amplifying signals that are in-phase with a reference signal and is particularly important for optical experiments that employ a pulsed light source. The design is based on the Analog Devices AD630 modulator/demodulator integrated circuit and uses a minimum number of components to accomplish input amplification, phase-sensitive detection, low-pass filtering, and amplification of the output signal. The entire instrument may be constructed for less than $100.
doi_str_mv 10.1021/ed082p1399
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_211907885</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ericid>EJ749825</ericid><sourcerecordid>895858251</sourcerecordid><originalsourceid>FETCH-LOGICAL-a310t-cc1ad716d7b1843318d2e254c7a91714607f4dc81937a8706015c8a447486c413</originalsourceid><addsrcrecordid>eNptkDFPwzAQhS0EEqWwMDNEDAxIBp_txOexqgoURWIA5sh1HJHS1sFOhfrvcRVEF6Y73fv03ukRcgnsDhiHe1cz5B0IrY_ICLRACoLjMRmxpFKdozwlZzEuGQOeaxyRYpK9tutu5bLSf9Opj31a7Cedb7JJOrdN60LW-JD1HwkxCx9M78PunJw0ZhXdxe8ck_eH2dv0iZYvj_PppKRGAOuptWBqBUWtFoBSCMCaO55Lq4wGBbJgqpG1xfSpMqhYwSC3aKRUEgsrQYzJ9eDbBf-1dbGvln4bNimy4gCaKcQ8QbcDZIOPMbim6kK7NmFXAav2tVSHWhJ8NcAutPYPnD0rqZHvvW4G2dh4yPrH5weMDmbF</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>211907885</pqid></control><display><type>article</type><title>A Simple Low-Cost Lock-In Amplifier for the Laboratory</title><source>American Chemical Society:Jisc Collections:American Chemical Society Read &amp; Publish Agreement 2022-2024 (Reading list)</source><source>ERIC</source><creator>Sengupta, Sandip K ; Farnham, Jessica M ; Whitten, James E</creator><creatorcontrib>Sengupta, Sandip K ; Farnham, Jessica M ; Whitten, James E</creatorcontrib><description>The construction of a simple, low-cost, stand-alone lock-in amplifier suitable for physical and analytical chemistry instructional laboratories is described. The instrument is useful for detecting and amplifying signals that are in-phase with a reference signal and is particularly important for optical experiments that employ a pulsed light source. The design is based on the Analog Devices AD630 modulator/demodulator integrated circuit and uses a minimum number of components to accomplish input amplification, phase-sensitive detection, low-pass filtering, and amplification of the output signal. The entire instrument may be constructed for less than $100.</description><identifier>ISSN: 0021-9584</identifier><identifier>EISSN: 1938-1328</identifier><identifier>DOI: 10.1021/ed082p1399</identifier><identifier>CODEN: JCEDA8</identifier><language>eng</language><publisher>Easton: Division of Chemical Education</publisher><subject>Chemistry ; Construction costs ; Experiments ; Instrumentation ; Integrated circuits ; Laboratories ; Laboratory Equipment ; Lock in amplifiers ; Low cost ; Organic chemistry ; Science Education ; Science Equipment ; Scientific apparatus &amp; instruments</subject><ispartof>Journal of chemical education, 2005-09, Vol.82 (9), p.1399</ispartof><rights>Copyright American Chemical Society Sep 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a310t-cc1ad716d7b1843318d2e254c7a91714607f4dc81937a8706015c8a447486c413</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://eric.ed.gov/ERICWebPortal/detail?accno=EJ749825$$DView record in ERIC$$Hfree_for_read</backlink></links><search><creatorcontrib>Sengupta, Sandip K</creatorcontrib><creatorcontrib>Farnham, Jessica M</creatorcontrib><creatorcontrib>Whitten, James E</creatorcontrib><title>A Simple Low-Cost Lock-In Amplifier for the Laboratory</title><title>Journal of chemical education</title><addtitle>J. Chem. Educ</addtitle><description>The construction of a simple, low-cost, stand-alone lock-in amplifier suitable for physical and analytical chemistry instructional laboratories is described. The instrument is useful for detecting and amplifying signals that are in-phase with a reference signal and is particularly important for optical experiments that employ a pulsed light source. The design is based on the Analog Devices AD630 modulator/demodulator integrated circuit and uses a minimum number of components to accomplish input amplification, phase-sensitive detection, low-pass filtering, and amplification of the output signal. The entire instrument may be constructed for less than $100.</description><subject>Chemistry</subject><subject>Construction costs</subject><subject>Experiments</subject><subject>Instrumentation</subject><subject>Integrated circuits</subject><subject>Laboratories</subject><subject>Laboratory Equipment</subject><subject>Lock in amplifiers</subject><subject>Low cost</subject><subject>Organic chemistry</subject><subject>Science Education</subject><subject>Science Equipment</subject><subject>Scientific apparatus &amp; instruments</subject><issn>0021-9584</issn><issn>1938-1328</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>7SW</sourceid><recordid>eNptkDFPwzAQhS0EEqWwMDNEDAxIBp_txOexqgoURWIA5sh1HJHS1sFOhfrvcRVEF6Y73fv03ukRcgnsDhiHe1cz5B0IrY_ICLRACoLjMRmxpFKdozwlZzEuGQOeaxyRYpK9tutu5bLSf9Opj31a7Cedb7JJOrdN60LW-JD1HwkxCx9M78PunJw0ZhXdxe8ck_eH2dv0iZYvj_PppKRGAOuptWBqBUWtFoBSCMCaO55Lq4wGBbJgqpG1xfSpMqhYwSC3aKRUEgsrQYzJ9eDbBf-1dbGvln4bNimy4gCaKcQ8QbcDZIOPMbim6kK7NmFXAav2tVSHWhJ8NcAutPYPnD0rqZHvvW4G2dh4yPrH5weMDmbF</recordid><startdate>20050901</startdate><enddate>20050901</enddate><creator>Sengupta, Sandip K</creator><creator>Farnham, Jessica M</creator><creator>Whitten, James E</creator><general>Division of Chemical Education</general><general>Division of Chemical Education of the American Chemical Society</general><general>American Chemical Society</general><scope>7SW</scope><scope>BJH</scope><scope>BNH</scope><scope>BNI</scope><scope>BNJ</scope><scope>BNO</scope><scope>ERI</scope><scope>PET</scope><scope>REK</scope><scope>WWN</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope></search><sort><creationdate>20050901</creationdate><title>A Simple Low-Cost Lock-In Amplifier for the Laboratory</title><author>Sengupta, Sandip K ; Farnham, Jessica M ; Whitten, James E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a310t-cc1ad716d7b1843318d2e254c7a91714607f4dc81937a8706015c8a447486c413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Chemistry</topic><topic>Construction costs</topic><topic>Experiments</topic><topic>Instrumentation</topic><topic>Integrated circuits</topic><topic>Laboratories</topic><topic>Laboratory Equipment</topic><topic>Lock in amplifiers</topic><topic>Low cost</topic><topic>Organic chemistry</topic><topic>Science Education</topic><topic>Science Equipment</topic><topic>Scientific apparatus &amp; instruments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sengupta, Sandip K</creatorcontrib><creatorcontrib>Farnham, Jessica M</creatorcontrib><creatorcontrib>Whitten, James E</creatorcontrib><collection>ERIC</collection><collection>ERIC (Ovid)</collection><collection>ERIC</collection><collection>ERIC</collection><collection>ERIC (Legacy Platform)</collection><collection>ERIC( SilverPlatter )</collection><collection>ERIC</collection><collection>ERIC PlusText (Legacy Platform)</collection><collection>Education Resources Information Center (ERIC)</collection><collection>ERIC</collection><collection>CrossRef</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><jtitle>Journal of chemical education</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sengupta, Sandip K</au><au>Farnham, Jessica M</au><au>Whitten, James E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><ericid>EJ749825</ericid><atitle>A Simple Low-Cost Lock-In Amplifier for the Laboratory</atitle><jtitle>Journal of chemical education</jtitle><addtitle>J. Chem. Educ</addtitle><date>2005-09-01</date><risdate>2005</risdate><volume>82</volume><issue>9</issue><spage>1399</spage><pages>1399-</pages><issn>0021-9584</issn><eissn>1938-1328</eissn><coden>JCEDA8</coden><abstract>The construction of a simple, low-cost, stand-alone lock-in amplifier suitable for physical and analytical chemistry instructional laboratories is described. The instrument is useful for detecting and amplifying signals that are in-phase with a reference signal and is particularly important for optical experiments that employ a pulsed light source. The design is based on the Analog Devices AD630 modulator/demodulator integrated circuit and uses a minimum number of components to accomplish input amplification, phase-sensitive detection, low-pass filtering, and amplification of the output signal. The entire instrument may be constructed for less than $100.</abstract><cop>Easton</cop><pub>Division of Chemical Education</pub><doi>10.1021/ed082p1399</doi><tpages>3</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0021-9584
ispartof Journal of chemical education, 2005-09, Vol.82 (9), p.1399
issn 0021-9584
1938-1328
language eng
recordid cdi_proquest_journals_211907885
source American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list); ERIC
subjects Chemistry
Construction costs
Experiments
Instrumentation
Integrated circuits
Laboratories
Laboratory Equipment
Lock in amplifiers
Low cost
Organic chemistry
Science Education
Science Equipment
Scientific apparatus & instruments
title A Simple Low-Cost Lock-In Amplifier for the Laboratory
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-02T13%3A38%3A16IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20Simple%20Low-Cost%20Lock-In%20Amplifier%20for%20the%20Laboratory&rft.jtitle=Journal%20of%20chemical%20education&rft.au=Sengupta,%20Sandip%20K&rft.date=2005-09-01&rft.volume=82&rft.issue=9&rft.spage=1399&rft.pages=1399-&rft.issn=0021-9584&rft.eissn=1938-1328&rft.coden=JCEDA8&rft_id=info:doi/10.1021/ed082p1399&rft_dat=%3Cproquest_cross%3E895858251%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-a310t-cc1ad716d7b1843318d2e254c7a91714607f4dc81937a8706015c8a447486c413%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=211907885&rft_id=info:pmid/&rft_ericid=EJ749825&rfr_iscdi=true