SENSOR INCLUDING MEASUREMENT CIRCUITS FOR DETERMINING RESISTANCE AND CAPACITANCE OF AN ENVIRONMENTAL CONDITION AND A METHOD OF OPERATING SUCH A SENSOR
A sensor is provided for measuring an environmental condition. The sensor includes a sensing element having a resistance and a capacitance which are sensitive to the environmental condition; a first measurement circuit for determining the resistance of the sensing element using logarithmic scaling;...
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| creator | BAILEY, Graham HAYES, Andrew BAILEY, Jim JACKSON, Matthew BROOKES, Keith |
| description | A sensor is provided for measuring an environmental condition. The sensor includes a sensing element having a resistance and a capacitance which are sensitive to the environmental condition; a first measurement circuit for determining the resistance of the sensing element using logarithmic scaling; a second measurement circuit including an integrator amplifier for determining the capacitance of the sensing element; and a switching circuit for switching the sensing element in turn into the first and second measurement circuits such that the resistance and capacitance can be determined within a predetermined time period.
L'invention concerne un capteur permettant de mesurer une condition environnementale. Le capteur comporte un élément de captage ayant une résistance et une capacité qui sont sensibles à la condition environnementale; un premier circuit de mesure permettant de déterminer la résistance de l'élément de captage à l'aide d'une mise à l'échelle logarithmique; un second circuit de mesure comportant un amplificateur intégrateur permettant de déterminer la capacité de l'élément de captage; et un circuit de commutation permettant de commuter l'élément de captage tour à tour dans les premier et second circuits de mesure de telle sorte que la résistance et la capacité peuvent être déterminées dans une période de prédéfinie. |
| format | Patent |
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L'invention concerne un capteur permettant de mesurer une condition environnementale. Le capteur comporte un élément de captage ayant une résistance et une capacité qui sont sensibles à la condition environnementale; un premier circuit de mesure permettant de déterminer la résistance de l'élément de captage à l'aide d'une mise à l'échelle logarithmique; un second circuit de mesure comportant un amplificateur intégrateur permettant de déterminer la capacité de l'élément de captage; et un circuit de commutation permettant de commuter l'élément de captage tour à tour dans les premier et second circuits de mesure de telle sorte que la résistance et la capacité peuvent être déterminées dans une période de prédéfinie.</description><language>eng ; fre</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; 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=20240411&DB=EPODOC&CC=WO&NR=2024074812A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240411&DB=EPODOC&CC=WO&NR=2024074812A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BAILEY, Graham</creatorcontrib><creatorcontrib>HAYES, Andrew</creatorcontrib><creatorcontrib>BAILEY, Jim</creatorcontrib><creatorcontrib>JACKSON, Matthew</creatorcontrib><creatorcontrib>BROOKES, Keith</creatorcontrib><title>SENSOR INCLUDING MEASUREMENT CIRCUITS FOR DETERMINING RESISTANCE AND CAPACITANCE OF AN ENVIRONMENTAL CONDITION AND A METHOD OF OPERATING SUCH A SENSOR</title><description>A sensor is provided for measuring an environmental condition. The sensor includes a sensing element having a resistance and a capacitance which are sensitive to the environmental condition; a first measurement circuit for determining the resistance of the sensing element using logarithmic scaling; a second measurement circuit including an integrator amplifier for determining the capacitance of the sensing element; and a switching circuit for switching the sensing element in turn into the first and second measurement circuits such that the resistance and capacitance can be determined within a predetermined time period.
L'invention concerne un capteur permettant de mesurer une condition environnementale. Le capteur comporte un élément de captage ayant une résistance et une capacité qui sont sensibles à la condition environnementale; un premier circuit de mesure permettant de déterminer la résistance de l'élément de captage à l'aide d'une mise à l'échelle logarithmique; un second circuit de mesure comportant un amplificateur intégrateur permettant de déterminer la capacité de l'élément de captage; et un circuit de commutation permettant de commuter l'élément de captage tour à tour dans les premier et second circuits de mesure de telle sorte que la résistance et la capacité peuvent être déterminées dans une période de prédéfinie.</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNzrEKwkAMBuAuDqK-w4Gz0NaCriGX2kCbK3dXHUuRcxIt1GfxeW2tD-AUknz8yTJ6OxJnrGLBstEsJ1URuMZSReIVssWGvVP5SDR5shXLhCw5dh4ESYFohVAD8tybfBwpkjNbI1MKlAqNaPZs5KthvOELoydqarLgp0jXYDGu5n_W0eLW3Yew-dVVtM3JY7EL_bMNQ99dwyO82otJ4zSLD9kxSSHZ_6c-97VDBw</recordid><startdate>20240411</startdate><enddate>20240411</enddate><creator>BAILEY, Graham</creator><creator>HAYES, Andrew</creator><creator>BAILEY, Jim</creator><creator>JACKSON, Matthew</creator><creator>BROOKES, Keith</creator><scope>EVB</scope></search><sort><creationdate>20240411</creationdate><title>SENSOR INCLUDING MEASUREMENT CIRCUITS FOR DETERMINING RESISTANCE AND CAPACITANCE OF AN ENVIRONMENTAL CONDITION AND A METHOD OF OPERATING SUCH A SENSOR</title><author>BAILEY, Graham ; HAYES, Andrew ; BAILEY, Jim ; JACKSON, Matthew ; BROOKES, Keith</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2024074812A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2024</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>BAILEY, Graham</creatorcontrib><creatorcontrib>HAYES, Andrew</creatorcontrib><creatorcontrib>BAILEY, Jim</creatorcontrib><creatorcontrib>JACKSON, Matthew</creatorcontrib><creatorcontrib>BROOKES, Keith</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BAILEY, Graham</au><au>HAYES, Andrew</au><au>BAILEY, Jim</au><au>JACKSON, Matthew</au><au>BROOKES, Keith</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SENSOR INCLUDING MEASUREMENT CIRCUITS FOR DETERMINING RESISTANCE AND CAPACITANCE OF AN ENVIRONMENTAL CONDITION AND A METHOD OF OPERATING SUCH A SENSOR</title><date>2024-04-11</date><risdate>2024</risdate><abstract>A sensor is provided for measuring an environmental condition. The sensor includes a sensing element having a resistance and a capacitance which are sensitive to the environmental condition; a first measurement circuit for determining the resistance of the sensing element using logarithmic scaling; a second measurement circuit including an integrator amplifier for determining the capacitance of the sensing element; and a switching circuit for switching the sensing element in turn into the first and second measurement circuits such that the resistance and capacitance can be determined within a predetermined time period.
L'invention concerne un capteur permettant de mesurer une condition environnementale. Le capteur comporte un élément de captage ayant une résistance et une capacité qui sont sensibles à la condition environnementale; un premier circuit de mesure permettant de déterminer la résistance de l'élément de captage à l'aide d'une mise à l'échelle logarithmique; un second circuit de mesure comportant un amplificateur intégrateur permettant de déterminer la capacité de l'élément de captage; et un circuit de commutation permettant de commuter l'élément de captage tour à tour dans les premier et second circuits de mesure de telle sorte que la résistance et la capacité peuvent être déterminées dans une période de prédéfinie.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | SENSOR INCLUDING MEASUREMENT CIRCUITS FOR DETERMINING RESISTANCE AND CAPACITANCE OF AN ENVIRONMENTAL CONDITION AND A METHOD OF OPERATING SUCH A SENSOR |
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