Temperature compensated pressure sensor network
A temperature compensated pressure sensor network for providing an output sensing signal representative of an applied pressure includes a reference oscillator circuit for providing a reference signal having an associated reference frequency. The oscillator circuit includes a first inductor pair elec...
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| creator | BRIEFER DENNIS K |
| description | A temperature compensated pressure sensor network for providing an output sensing signal representative of an applied pressure includes a reference oscillator circuit for providing a reference signal having an associated reference frequency. The oscillator circuit includes a first inductor pair electrically coupled in series, wherein the reference frequency is a predetermined function of a first inductance associated with the first inductor pair. The sensor network further includes a sensor circuit for providing a sensing signal having an associated sensing frequency. The sensor circuit includes a second inductor pair and a sensing capacitor electrically coupled in series, wherein the sensing frequency is a predetermined function of a second inductance associated with the second inductor pair and the applied pressure. The sensor network also includes a processor for receiving the reference signal and the sensing signal, and producing the output sensing signal. The output sensing signal is a predetermined function of the reference signal and the sensing signal. The first inductor pair is oriented with respect to the second inductor pair so as to minimize effects of inductive coupling, and temperature variation, between the first inductor pair and the second inductor pair. The first inductor and the second inductor are preferably electrically coupled in series opposition, and the third inductor and the fourth inductor are preferably electrically coupled in series opposition. The first inductor pair is preferably oriented substantially orthogonal to the second inductor pair. |
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The oscillator circuit includes a first inductor pair electrically coupled in series, wherein the reference frequency is a predetermined function of a first inductance associated with the first inductor pair. The sensor network further includes a sensor circuit for providing a sensing signal having an associated sensing frequency. The sensor circuit includes a second inductor pair and a sensing capacitor electrically coupled in series, wherein the sensing frequency is a predetermined function of a second inductance associated with the second inductor pair and the applied pressure. The sensor network also includes a processor for receiving the reference signal and the sensing signal, and producing the output sensing signal. The output sensing signal is a predetermined function of the reference signal and the sensing signal. The first inductor pair is oriented with respect to the second inductor pair so as to minimize effects of inductive coupling, and temperature variation, between the first inductor pair and the second inductor pair. The first inductor and the second inductor are preferably electrically coupled in series opposition, and the third inductor and the fourth inductor are preferably electrically coupled in series opposition. The first inductor pair is preferably oriented substantially orthogonal to the second inductor pair.</description><edition>7</edition><language>eng</language><subject>MEASURING ; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE ; PHYSICS ; TESTING</subject><creationdate>2002</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=20021217&DB=EPODOC&CC=US&NR=6496019B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20021217&DB=EPODOC&CC=US&NR=6496019B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BRIEFER DENNIS K</creatorcontrib><title>Temperature compensated pressure sensor network</title><description>A temperature compensated pressure sensor network for providing an output sensing signal representative of an applied pressure includes a reference oscillator circuit for providing a reference signal having an associated reference frequency. The oscillator circuit includes a first inductor pair electrically coupled in series, wherein the reference frequency is a predetermined function of a first inductance associated with the first inductor pair. The sensor network further includes a sensor circuit for providing a sensing signal having an associated sensing frequency. The sensor circuit includes a second inductor pair and a sensing capacitor electrically coupled in series, wherein the sensing frequency is a predetermined function of a second inductance associated with the second inductor pair and the applied pressure. The sensor network also includes a processor for receiving the reference signal and the sensing signal, and producing the output sensing signal. The output sensing signal is a predetermined function of the reference signal and the sensing signal. The first inductor pair is oriented with respect to the second inductor pair so as to minimize effects of inductive coupling, and temperature variation, between the first inductor pair and the second inductor pair. The first inductor and the second inductor are preferably electrically coupled in series opposition, and the third inductor and the fourth inductor are preferably electrically coupled in series opposition. The first inductor pair is preferably oriented substantially orthogonal to the second inductor pair.</description><subject>MEASURING</subject><subject>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAPSc0tSC1KLCktSlVIzgey84oTS1JTFAqKUouLQYLFQJH8IoW81JLy_KJsHgbWtMSc4lReKM3NoODmGuLsoZtakB-fWlyQmJwKVBkfGmxmYmlmYGjpZGhMhBIAReQrqg</recordid><startdate>20021217</startdate><enddate>20021217</enddate><creator>BRIEFER DENNIS K</creator><scope>EVB</scope></search><sort><creationdate>20021217</creationdate><title>Temperature compensated pressure sensor network</title><author>BRIEFER DENNIS K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6496019B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>MEASURING</topic><topic>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>BRIEFER DENNIS K</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BRIEFER DENNIS K</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Temperature compensated pressure sensor network</title><date>2002-12-17</date><risdate>2002</risdate><abstract>A temperature compensated pressure sensor network for providing an output sensing signal representative of an applied pressure includes a reference oscillator circuit for providing a reference signal having an associated reference frequency. The oscillator circuit includes a first inductor pair electrically coupled in series, wherein the reference frequency is a predetermined function of a first inductance associated with the first inductor pair. The sensor network further includes a sensor circuit for providing a sensing signal having an associated sensing frequency. The sensor circuit includes a second inductor pair and a sensing capacitor electrically coupled in series, wherein the sensing frequency is a predetermined function of a second inductance associated with the second inductor pair and the applied pressure. The sensor network also includes a processor for receiving the reference signal and the sensing signal, and producing the output sensing signal. The output sensing signal is a predetermined function of the reference signal and the sensing signal. The first inductor pair is oriented with respect to the second inductor pair so as to minimize effects of inductive coupling, and temperature variation, between the first inductor pair and the second inductor pair. The first inductor and the second inductor are preferably electrically coupled in series opposition, and the third inductor and the fourth inductor are preferably electrically coupled in series opposition. The first inductor pair is preferably oriented substantially orthogonal to the second inductor pair.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TESTING |
| title | Temperature compensated pressure sensor network |
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