FLOW RATE CONTROL METHOD
PURPOSE:To provide the flow rate control method which speedily performs the flow rate control without any overshoot by switching a flow rate control system halfway. CONSTITUTION:This flow rate controlling method controls the flow rate of fluid by controlling a flow control valve 10 interposed in a f...
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| creator | KAZAMA YOICHIRO |
| description | PURPOSE:To provide the flow rate control method which speedily performs the flow rate control without any overshoot by switching a flow rate control system halfway. CONSTITUTION:This flow rate controlling method controls the flow rate of fluid by controlling a flow control valve 10 interposed in a fluid flow passage 4 from a flow rate control part 22, and stationary manipulated variables of the flow control valve corresponding to plural flow rate set values are previously measured and stored as a table. If a flow rate set value abruptly varies, a stationary manipulated variable corresponding to the new flow rate set value is found on the basis of the table and then an initial manipulated variable which is smaller that said value is outputted to abruptly supply fluid by an amount up to a certain extent less than the flow rate set value; and then speed type PID control is started immediately and slow valve operation is performed on the basis of the initial manipulated variable. Consequently, the flow rate is speedily varied to the flow rate set value without causing any overshoot. |
| format | Patent |
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CONSTITUTION:This flow rate controlling method controls the flow rate of fluid by controlling a flow control valve 10 interposed in a fluid flow passage 4 from a flow rate control part 22, and stationary manipulated variables of the flow control valve corresponding to plural flow rate set values are previously measured and stored as a table. If a flow rate set value abruptly varies, a stationary manipulated variable corresponding to the new flow rate set value is found on the basis of the table and then an initial manipulated variable which is smaller that said value is outputted to abruptly supply fluid by an amount up to a certain extent less than the flow rate set value; and then speed type PID control is started immediately and slow valve operation is performed on the basis of the initial manipulated variable. Consequently, the flow rate is speedily varied to the flow rate set value without causing any overshoot.</description><edition>6</edition><language>eng</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; CONTROL OR REGULATING SYSTEMS IN GENERAL ; CONTROLLING ; DEVICES FOR VENTING OR AERATING ; ENGINEERING ELEMENTS AND UNITS ; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS ; PHYSICS ; REGULATING ; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>1995</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=19950623&DB=EPODOC&CC=JP&NR=H07160338A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950623&DB=EPODOC&CC=JP&NR=H07160338A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAZAMA YOICHIRO</creatorcontrib><title>FLOW RATE CONTROL METHOD</title><description>PURPOSE:To provide the flow rate control method which speedily performs the flow rate control without any overshoot by switching a flow rate control system halfway. CONSTITUTION:This flow rate controlling method controls the flow rate of fluid by controlling a flow control valve 10 interposed in a fluid flow passage 4 from a flow rate control part 22, and stationary manipulated variables of the flow control valve corresponding to plural flow rate set values are previously measured and stored as a table. If a flow rate set value abruptly varies, a stationary manipulated variable corresponding to the new flow rate set value is found on the basis of the table and then an initial manipulated variable which is smaller that said value is outputted to abruptly supply fluid by an amount up to a certain extent less than the flow rate set value; and then speed type PID control is started immediately and slow valve operation is performed on the basis of the initial manipulated variable. Consequently, the flow rate is speedily varied to the flow rate set value without causing any overshoot.</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>CONTROL OR REGULATING SYSTEMS IN GENERAL</subject><subject>CONTROLLING</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</subject><subject>PHYSICS</subject><subject>REGULATING</subject><subject>SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES</subject><subject>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBw8_EPVwhyDHFVcPb3Cwny91HwdQ3x8HfhYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxXgEeBuaGZgbGxhaOxsSoAQD0oh_f</recordid><startdate>19950623</startdate><enddate>19950623</enddate><creator>KAZAMA YOICHIRO</creator><scope>EVB</scope></search><sort><creationdate>19950623</creationdate><title>FLOW RATE CONTROL METHOD</title><author>KAZAMA YOICHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH07160338A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>CONTROL OR REGULATING SYSTEMS IN GENERAL</topic><topic>CONTROLLING</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</topic><topic>PHYSICS</topic><topic>REGULATING</topic><topic>SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES</topic><topic>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>KAZAMA YOICHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KAZAMA YOICHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FLOW RATE CONTROL METHOD</title><date>1995-06-23</date><risdate>1995</risdate><abstract>PURPOSE:To provide the flow rate control method which speedily performs the flow rate control without any overshoot by switching a flow rate control system halfway. CONSTITUTION:This flow rate controlling method controls the flow rate of fluid by controlling a flow control valve 10 interposed in a fluid flow passage 4 from a flow rate control part 22, and stationary manipulated variables of the flow control valve corresponding to plural flow rate set values are previously measured and stored as a table. If a flow rate set value abruptly varies, a stationary manipulated variable corresponding to the new flow rate set value is found on the basis of the table and then an initial manipulated variable which is smaller that said value is outputted to abruptly supply fluid by an amount up to a certain extent less than the flow rate set value; and then speed type PID control is started immediately and slow valve operation is performed on the basis of the initial manipulated variable. Consequently, the flow rate is speedily varied to the flow rate set value without causing any overshoot.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACTUATING-FLOATS BLASTING COCKS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | FLOW RATE CONTROL METHOD |
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