Variable-capacitance type sensor and variable-capacitance type sensor system using the same

Variable-capacitance type sensor and variable-capacitance type sensor system using the same

A constant-capacitance capacitor is series-connected with a variable-capacitance capacitor whose capacitance varies with the pressure. The other end of the variable-capacitance capacitor is connected to the ground potential terminal of a D.C. power source. The terminal voltage of the variable-capaci...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NISHIHARA, TOSHIHIKO
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PHYSICS
TESTING
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 NISHIHARA
TOSHIHIKO
description A constant-capacitance capacitor is series-connected with a variable-capacitance capacitor whose capacitance varies with the pressure. The other end of the variable-capacitance capacitor is connected to the ground potential terminal of a D.C. power source. The terminal voltage of the variable-capacitance capacitor is compared with a threshold voltage provided by the D.C. power source by means of a comparator. An output voltage of the comparator is stored into a memory in synchronism with a clock pulse signal. An output voltage of the memory is integrated by an integrator. An output voltage of the integrator is supplied to a buffer amplifier for lowering the signal source impedance with respect to the output voltage. An output voltage obtained from the buffer amplifier is fed back to the other end of the constant-capacitance capacitor and at the same time supplied to an output terminal.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US4977480A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US4977480A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US4977480A3</originalsourceid><addsrcrecordid>eNrjZIgOSyzKTEzKSdVNTixITM4sScxLTlUoqSxIVShOzSvOL1JIzEtRKCOkqLiyuCQ1V6G0ODMvXaEkAyiemJvKw8CalphTnMoLpbkZ5N1cQ5w9dFML8uNTi4EmpeallsSHBptYmpubWBg4GhNWAQC4gDs1</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Variable-capacitance type sensor and variable-capacitance type sensor system using the same</title><source>esp@cenet</source><creator>NISHIHARA; TOSHIHIKO</creator><creatorcontrib>NISHIHARA; TOSHIHIKO</creatorcontrib><description>A constant-capacitance capacitor is series-connected with a variable-capacitance capacitor whose capacitance varies with the pressure. The other end of the variable-capacitance capacitor is connected to the ground potential terminal of a D.C. power source. The terminal voltage of the variable-capacitance capacitor is compared with a threshold voltage provided by the D.C. power source by means of a comparator. An output voltage of the comparator is stored into a memory in synchronism with a clock pulse signal. An output voltage of the memory is integrated by an integrator. An output voltage of the integrator is supplied to a buffer amplifier for lowering the signal source impedance with respect to the output voltage. An output voltage obtained from the buffer amplifier is fed back to the other end of the constant-capacitance capacitor and at the same time supplied to an output terminal.</description><language>eng</language><subject>MEASURING ; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE ; PHYSICS ; TESTING</subject><creationdate>1990</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&amp;date=19901211&amp;DB=EPODOC&amp;CC=US&amp;NR=4977480A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19901211&amp;DB=EPODOC&amp;CC=US&amp;NR=4977480A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NISHIHARA; TOSHIHIKO</creatorcontrib><title>Variable-capacitance type sensor and variable-capacitance type sensor system using the same</title><description>A constant-capacitance capacitor is series-connected with a variable-capacitance capacitor whose capacitance varies with the pressure. The other end of the variable-capacitance capacitor is connected to the ground potential terminal of a D.C. power source. The terminal voltage of the variable-capacitance capacitor is compared with a threshold voltage provided by the D.C. power source by means of a comparator. An output voltage of the comparator is stored into a memory in synchronism with a clock pulse signal. An output voltage of the memory is integrated by an integrator. An output voltage of the integrator is supplied to a buffer amplifier for lowering the signal source impedance with respect to the output voltage. An output voltage obtained from the buffer amplifier is fed back to the other end of the constant-capacitance capacitor and at the same time supplied to an output terminal.</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>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIgOSyzKTEzKSdVNTixITM4sScxLTlUoqSxIVShOzSvOL1JIzEtRKCOkqLiyuCQ1V6G0ODMvXaEkAyiemJvKw8CalphTnMoLpbkZ5N1cQ5w9dFML8uNTi4EmpeallsSHBptYmpubWBg4GhNWAQC4gDs1</recordid><startdate>19901211</startdate><enddate>19901211</enddate><creator>NISHIHARA; TOSHIHIKO</creator><scope>EVB</scope></search><sort><creationdate>19901211</creationdate><title>Variable-capacitance type sensor and variable-capacitance type sensor system using the same</title><author>NISHIHARA; TOSHIHIKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4977480A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</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>NISHIHARA; TOSHIHIKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NISHIHARA; TOSHIHIKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Variable-capacitance type sensor and variable-capacitance type sensor system using the same</title><date>1990-12-11</date><risdate>1990</risdate><abstract>A constant-capacitance capacitor is series-connected with a variable-capacitance capacitor whose capacitance varies with the pressure. The other end of the variable-capacitance capacitor is connected to the ground potential terminal of a D.C. power source. The terminal voltage of the variable-capacitance capacitor is compared with a threshold voltage provided by the D.C. power source by means of a comparator. An output voltage of the comparator is stored into a memory in synchronism with a clock pulse signal. An output voltage of the memory is integrated by an integrator. An output voltage of the integrator is supplied to a buffer amplifier for lowering the signal source impedance with respect to the output voltage. An output voltage obtained from the buffer amplifier is fed back to the other end of the constant-capacitance capacitor and at the same time supplied to an output terminal.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_US4977480A
source esp@cenet
subjects MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PHYSICS
TESTING
title Variable-capacitance type sensor and variable-capacitance type sensor system using the same
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-16T10%3A20%3A56IST&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=NISHIHARA;%20TOSHIHIKO&rft.date=1990-12-11&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS4977480A%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