TMR sensor modulation and demodulation system based on improved digital lock-in amplifier
The invention discloses a TMR sensor modulation and demodulation system based on an improved digital lock-in amplifier, and the system comprises a drive circuit which is used for driving a TMR sensor to generate an output signal according to a generated AC drive signal; the amplifying circuit is use...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | SHI SHUANGQUAN YANG JIANZHONG CHEN ZIFEN XIONG HAOCHEN |
| description | The invention discloses a TMR sensor modulation and demodulation system based on an improved digital lock-in amplifier, and the system comprises a drive circuit which is used for driving a TMR sensor to generate an output signal according to a generated AC drive signal; the amplifying circuit is used for amplifying the output signal of the sensor to obtain an amplified output signal; the band-pass filter circuit is used for filtering the amplified output signal after receiving the amplified output signal; the synchronous sampling circuit is used for synchronously sampling the reference signal and the filtered amplified output signal after receiving the filtered amplified output signal; and the microcontroller is used for carrying out coherent demodulation processing on the sampled data by applying an improved digital phase-locked amplification algorithm after receiving the sampled data. The design of a traditional digital lock-in amplifier is improved, the stability and the reliability of the digital lock-in |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN118337153A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN118337153A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN118337153A3</originalsourceid><addsrcrecordid>eNrjZIgM8Q1SKE7NK84vUsjNTynNSSzJzM9TSMxLUUhJRRIoriwuSc1VSEosTk1RAPIzcwuK8suA7JTM9MySxByFnPzkbN1MoM7cgpzMtMzUIh4G1rTEnOJUXijNzaDo5hri7KGbWpAfn1pckJicmpdaEu_sZ2hoYWxsbmhq7GhMjBoA8NM6zA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>TMR sensor modulation and demodulation system based on improved digital lock-in amplifier</title><source>esp@cenet</source><creator>SHI SHUANGQUAN ; YANG JIANZHONG ; CHEN ZIFEN ; XIONG HAOCHEN</creator><creatorcontrib>SHI SHUANGQUAN ; YANG JIANZHONG ; CHEN ZIFEN ; XIONG HAOCHEN</creatorcontrib><description>The invention discloses a TMR sensor modulation and demodulation system based on an improved digital lock-in amplifier, and the system comprises a drive circuit which is used for driving a TMR sensor to generate an output signal according to a generated AC drive signal; the amplifying circuit is used for amplifying the output signal of the sensor to obtain an amplified output signal; the band-pass filter circuit is used for filtering the amplified output signal after receiving the amplified output signal; the synchronous sampling circuit is used for synchronously sampling the reference signal and the filtered amplified output signal after receiving the filtered amplified output signal; and the microcontroller is used for carrying out coherent demodulation processing on the sampled data by applying an improved digital phase-locked amplification algorithm after receiving the sampled data. The design of a traditional digital lock-in amplifier is improved, the stability and the reliability of the digital lock-in</description><language>chi ; eng</language><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES ; BASIC ELECTRONIC CIRCUITRY ; DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ; ELECTRICITY ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; MODULATION ; PHYSICS ; TESTING</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240712&DB=EPODOC&CC=CN&NR=118337153A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240712&DB=EPODOC&CC=CN&NR=118337153A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHI SHUANGQUAN</creatorcontrib><creatorcontrib>YANG JIANZHONG</creatorcontrib><creatorcontrib>CHEN ZIFEN</creatorcontrib><creatorcontrib>XIONG HAOCHEN</creatorcontrib><title>TMR sensor modulation and demodulation system based on improved digital lock-in amplifier</title><description>The invention discloses a TMR sensor modulation and demodulation system based on an improved digital lock-in amplifier, and the system comprises a drive circuit which is used for driving a TMR sensor to generate an output signal according to a generated AC drive signal; the amplifying circuit is used for amplifying the output signal of the sensor to obtain an amplified output signal; the band-pass filter circuit is used for filtering the amplified output signal after receiving the amplified output signal; the synchronous sampling circuit is used for synchronously sampling the reference signal and the filtered amplified output signal after receiving the filtered amplified output signal; and the microcontroller is used for carrying out coherent demodulation processing on the sampled data by applying an improved digital phase-locked amplification algorithm after receiving the sampled data. The design of a traditional digital lock-in amplifier is improved, the stability and the reliability of the digital lock-in</description><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER</subject><subject>ELECTRICITY</subject><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>MODULATION</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIgM8Q1SKE7NK84vUsjNTynNSSzJzM9TSMxLUUhJRRIoriwuSc1VSEosTk1RAPIzcwuK8suA7JTM9MySxByFnPzkbN1MoM7cgpzMtMzUIh4G1rTEnOJUXijNzaDo5hri7KGbWpAfn1pckJicmpdaEu_sZ2hoYWxsbmhq7GhMjBoA8NM6zA</recordid><startdate>20240712</startdate><enddate>20240712</enddate><creator>SHI SHUANGQUAN</creator><creator>YANG JIANZHONG</creator><creator>CHEN ZIFEN</creator><creator>XIONG HAOCHEN</creator><scope>EVB</scope></search><sort><creationdate>20240712</creationdate><title>TMR sensor modulation and demodulation system based on improved digital lock-in amplifier</title><author>SHI SHUANGQUAN ; YANG JIANZHONG ; CHEN ZIFEN ; XIONG HAOCHEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN118337153A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER</topic><topic>ELECTRICITY</topic><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>MODULATION</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SHI SHUANGQUAN</creatorcontrib><creatorcontrib>YANG JIANZHONG</creatorcontrib><creatorcontrib>CHEN ZIFEN</creatorcontrib><creatorcontrib>XIONG HAOCHEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHI SHUANGQUAN</au><au>YANG JIANZHONG</au><au>CHEN ZIFEN</au><au>XIONG HAOCHEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TMR sensor modulation and demodulation system based on improved digital lock-in amplifier</title><date>2024-07-12</date><risdate>2024</risdate><abstract>The invention discloses a TMR sensor modulation and demodulation system based on an improved digital lock-in amplifier, and the system comprises a drive circuit which is used for driving a TMR sensor to generate an output signal according to a generated AC drive signal; the amplifying circuit is used for amplifying the output signal of the sensor to obtain an amplified output signal; the band-pass filter circuit is used for filtering the amplified output signal after receiving the amplified output signal; the synchronous sampling circuit is used for synchronously sampling the reference signal and the filtered amplified output signal after receiving the filtered amplified output signal; and the microcontroller is used for carrying out coherent demodulation processing on the sampled data by applying an improved digital phase-locked amplification algorithm after receiving the sampled data. The design of a traditional digital lock-in amplifier is improved, the stability and the reliability of the digital lock-in</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN118337153A |
| source | esp@cenet |
| subjects | AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MODULATION PHYSICS TESTING |
| title | TMR sensor modulation and demodulation system based on improved digital lock-in amplifier |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-10T01%3A11%3A55IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=SHI%20SHUANGQUAN&rft.date=2024-07-12&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN118337153A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |