Thermal conductivity measuring device
A thermal conductivity measuring device includes a diaphragm portion, a thermal conductivity detector, a temperature sensor, a control section, and a thermal conductivity calculating section. The diaphragm portion is formed on a base. The thermal conductivity detector is formed in the diaphragm port...
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| creator | HIROYUKI MUTO SHOJI KAMIUNTEN YASUHIRO KAJIO MITSUHIKO NAGATA |
| description | A thermal conductivity measuring device includes a diaphragm portion, a thermal conductivity detector, a temperature sensor, a control section, and a thermal conductivity calculating section. The diaphragm portion is formed on a base. The thermal conductivity detector is formed in the diaphragm portion to perform conduction of heat to/from a sample gas. The temperature sensor is disposed on the base to be near the thermal conductivity detector so as to measure the ambient temperature around the base. The temperature sensor is thermally insulated from the thermal conductivity detector. The control section controls the amount of energy supplied to the thermal conductivity detector such that the temperature difference between the ambient temperature measured by the temperature sensor and the heating temperature of the thermal conductivity detector becomes a constant value. The thermal conductivity calculating section calculates the thermal conductivity of the sample gas on the basis of the amount of energy supplied to the thermal conductivity detector while the temperature difference is kept at the constant value by the control section. |
| format | Patent |
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The diaphragm portion is formed on a base. The thermal conductivity detector is formed in the diaphragm portion to perform conduction of heat to/from a sample gas. The temperature sensor is disposed on the base to be near the thermal conductivity detector so as to measure the ambient temperature around the base. The temperature sensor is thermally insulated from the thermal conductivity detector. The control section controls the amount of energy supplied to the thermal conductivity detector such that the temperature difference between the ambient temperature measured by the temperature sensor and the heating temperature of the thermal conductivity detector becomes a constant value. 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The thermal conductivity calculating section calculates the thermal conductivity of the sample gas on the basis of the amount of energy supplied to the thermal conductivity detector while the temperature difference is kept at the constant value by the control section.</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>1996</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFANyUgtyk3MUUjOz0spTS7JLMssqVTITU0sLi3KzEtXSEkty0xO5WFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8Y6hJkaGhhaWZo7GhFUAANl6Jt0</recordid><startdate>19960801</startdate><enddate>19960801</enddate><creator>HIROYUKI MUTO</creator><creator>SHOJI KAMIUNTEN</creator><creator>YASUHIRO KAJIO</creator><creator>MITSUHIKO NAGATA</creator><scope>EVB</scope></search><sort><creationdate>19960801</creationdate><title>Thermal conductivity measuring device</title><author>HIROYUKI MUTO ; SHOJI KAMIUNTEN ; YASUHIRO KAJIO ; MITSUHIKO NAGATA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU4211896A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1996</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>HIROYUKI MUTO</creatorcontrib><creatorcontrib>SHOJI KAMIUNTEN</creatorcontrib><creatorcontrib>YASUHIRO KAJIO</creatorcontrib><creatorcontrib>MITSUHIKO NAGATA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HIROYUKI MUTO</au><au>SHOJI KAMIUNTEN</au><au>YASUHIRO KAJIO</au><au>MITSUHIKO NAGATA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Thermal conductivity measuring device</title><date>1996-08-01</date><risdate>1996</risdate><abstract>A thermal conductivity measuring device includes a diaphragm portion, a thermal conductivity detector, a temperature sensor, a control section, and a thermal conductivity calculating section. The diaphragm portion is formed on a base. The thermal conductivity detector is formed in the diaphragm portion to perform conduction of heat to/from a sample gas. The temperature sensor is disposed on the base to be near the thermal conductivity detector so as to measure the ambient temperature around the base. The temperature sensor is thermally insulated from the thermal conductivity detector. The control section controls the amount of energy supplied to the thermal conductivity detector such that the temperature difference between the ambient temperature measured by the temperature sensor and the heating temperature of the thermal conductivity detector becomes a constant value. 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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Thermal conductivity measuring device |
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