ANORDNING VID ELEKTRISKA INDUKTIONSUGNAR
1466217 Liquid level detector AEGELOTHERM GmbH 22 May 1975 [31 May 1974] 22364/75 Heading G1N An electrical induction furnace for heating liquid electrically conducting materials comprises a crucible 1 surrounded in the region of the melt 3 by a plurality of turns of an induction heating coil 2 conn...
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| creator | CHRISTU S KOHLER H MORKRAMER K-L |
| description | 1466217 Liquid level detector AEGELOTHERM GmbH 22 May 1975 [31 May 1974] 22364/75 Heading G1N An electrical induction furnace for heating liquid electrically conducting materials comprises a crucible 1 surrounded in the region of the melt 3 by a plurality of turns of an induction heating coil 2 connected to a source of A.C. 4 and a liquid level sensing device including indicating means responsive to a change in electrical potential between turns of the induction coil. Thus a pair of adjacent turns is connected across the primary of a transformer 20 via e.g. taps 21, 211, the transformer secondary winding connecting via rectifier 21 to resistor 22. A direct current proportional to the alternating current in the coil 2 is obtained by current transformer 14, and rectifier 15, producing a corresponding voltage across resistor 16. The voltages across resistors 16, 22 are compared in a circuit containing resistors 23, 24, If they are unequal, the difference voltage at the output of amplifier 26 causes an indication from luminous diode e.g. 27, which indicates a change in coil impedence due to melt entering the space between the respective pair of turns. |
| format | Patent |
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Thus a pair of adjacent turns is connected across the primary of a transformer 20 via e.g. taps 21, 211, the transformer secondary winding connecting via rectifier 21 to resistor 22. A direct current proportional to the alternating current in the coil 2 is obtained by current transformer 14, and rectifier 15, producing a corresponding voltage across resistor 16. The voltages across resistors 16, 22 are compared in a circuit containing resistors 23, 24, If they are unequal, the difference voltage at the output of amplifier 26 causes an indication from luminous diode e.g. 27, which indicates a change in coil impedence due to melt entering the space between the respective pair of turns.</description><language>swe</language><subject>BLASTING ; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ; ELECTRIC HEATING ; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; FURNACES ; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL ; HEATING ; KILNS ; LIGHTING ; MEASURING ; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL ; MECHANICAL ENGINEERING ; METERING BY VOLUME ; OPEN SINTERING OR LIKE APPARATUS ; OVENS ; PHYSICS ; RETORTS ; TESTING ; WEAPONS</subject><creationdate>1975</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=19751201&DB=EPODOC&CC=SE&NR=7506022L$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19751201&DB=EPODOC&CC=SE&NR=7506022L$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHRISTU S</creatorcontrib><creatorcontrib>KOHLER H</creatorcontrib><creatorcontrib>MORKRAMER K-L</creatorcontrib><title>ANORDNING VID ELEKTRISKA INDUKTIONSUGNAR</title><description>1466217 Liquid level detector AEGELOTHERM GmbH 22 May 1975 [31 May 1974] 22364/75 Heading G1N An electrical induction furnace for heating liquid electrically conducting materials comprises a crucible 1 surrounded in the region of the melt 3 by a plurality of turns of an induction heating coil 2 connected to a source of A.C. 4 and a liquid level sensing device including indicating means responsive to a change in electrical potential between turns of the induction coil. Thus a pair of adjacent turns is connected across the primary of a transformer 20 via e.g. taps 21, 211, the transformer secondary winding connecting via rectifier 21 to resistor 22. A direct current proportional to the alternating current in the coil 2 is obtained by current transformer 14, and rectifier 15, producing a corresponding voltage across resistor 16. The voltages across resistors 16, 22 are compared in a circuit containing resistors 23, 24, If they are unequal, the difference voltage at the output of amplifier 26 causes an indication from luminous diode e.g. 27, which indicates a change in coil impedence due to melt entering the space between the respective pair of turns.</description><subject>BLASTING</subject><subject>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</subject><subject>ELECTRIC HEATING</subject><subject>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>FURNACES</subject><subject>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</subject><subject>HEATING</subject><subject>KILNS</subject><subject>LIGHTING</subject><subject>MEASURING</subject><subject>MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL</subject><subject>MECHANICAL ENGINEERING</subject><subject>METERING BY VOLUME</subject><subject>OPEN SINTERING OR LIKE APPARATUS</subject><subject>OVENS</subject><subject>PHYSICS</subject><subject>RETORTS</subject><subject>TESTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1975</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNBw9PMPcvHz9HNXCPN0UXD1cfUOCfIM9nZU8PRzCfUO8fT3Cw5193MM4mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8cGu5qYGZgZGRj4-xkQoAQDoUyRM</recordid><startdate>19751201</startdate><enddate>19751201</enddate><creator>CHRISTU S</creator><creator>KOHLER H</creator><creator>MORKRAMER K-L</creator><scope>EVB</scope></search><sort><creationdate>19751201</creationdate><title>ANORDNING VID ELEKTRISKA INDUKTIONSUGNAR</title><author>CHRISTU S ; KOHLER H ; MORKRAMER K-L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_SE7506022LL3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>swe</language><creationdate>1975</creationdate><topic>BLASTING</topic><topic>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</topic><topic>ELECTRIC HEATING</topic><topic>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>FURNACES</topic><topic>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</topic><topic>HEATING</topic><topic>KILNS</topic><topic>LIGHTING</topic><topic>MEASURING</topic><topic>MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL</topic><topic>MECHANICAL ENGINEERING</topic><topic>METERING BY VOLUME</topic><topic>OPEN SINTERING OR LIKE APPARATUS</topic><topic>OVENS</topic><topic>PHYSICS</topic><topic>RETORTS</topic><topic>TESTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>CHRISTU S</creatorcontrib><creatorcontrib>KOHLER H</creatorcontrib><creatorcontrib>MORKRAMER K-L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHRISTU S</au><au>KOHLER H</au><au>MORKRAMER K-L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ANORDNING VID ELEKTRISKA INDUKTIONSUGNAR</title><date>1975-12-01</date><risdate>1975</risdate><abstract>1466217 Liquid level detector AEGELOTHERM GmbH 22 May 1975 [31 May 1974] 22364/75 Heading G1N An electrical induction furnace for heating liquid electrically conducting materials comprises a crucible 1 surrounded in the region of the melt 3 by a plurality of turns of an induction heating coil 2 connected to a source of A.C. 4 and a liquid level sensing device including indicating means responsive to a change in electrical potential between turns of the induction coil. Thus a pair of adjacent turns is connected across the primary of a transformer 20 via e.g. taps 21, 211, the transformer secondary winding connecting via rectifier 21 to resistor 22. A direct current proportional to the alternating current in the coil 2 is obtained by current transformer 14, and rectifier 15, producing a corresponding voltage across resistor 16. The voltages across resistors 16, 22 are compared in a circuit containing resistors 23, 24, If they are unequal, the difference voltage at the output of amplifier 26 causes an indication from luminous diode e.g. 27, which indicates a change in coil impedence due to melt entering the space between the respective pair of turns.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL MECHANICAL ENGINEERING METERING BY VOLUME OPEN SINTERING OR LIKE APPARATUS OVENS PHYSICS RETORTS TESTING WEAPONS |
| title | ANORDNING VID ELEKTRISKA INDUKTIONSUGNAR |
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