-
公开(公告)号：US20190162682A1
公开(公告)日：2019-05-30
申请号：US15827891
申请日：2017-11-30
发明人： Joshua Daw , Troy C. Unruh
CPC分类号： G01N25/18 , G01N25/005 , G01N27/002 , G01N27/18
摘要： A sensor for measuring thermal conductivity includes an insulator, a test material over the insulator, a conductor over the test material, and a gas within an open volume adjacent the test material and the conductor. An electrical source is configured to provide an alternating current through the conductor to heat the test material. Leads are connected to the conductor and configured to connect to a voltmeter. A method of measuring thermal conductivity includes disposing the sensor in a reactor core in which a nuclear fuel undergoes irradiation and radioactive decay. An alternating current is provided from the electrical source through the conductor to heat the test material. A voltage is measured as a function of time at the leads connected to the conductor. A thermal conductivity of the test material is calculated based on the voltage measured as a function of time. Methods of forming a sensor are also disclosed.
-
公开(公告)号：US20190162568A1
公开(公告)日：2019-05-30
申请号：US16309604
申请日：2017-06-07
发明人： Patrice Ligneul , Mustapha Abbad , Nicolas Renoux , Marian Faur
IPC分类号： G01F1/68 , G01N25/18 , G01F1/74 , G01K13/02 , G01N25/00 , G01F1/44 , E21B47/06 , E21B47/10 , E21B49/08
摘要： Methods for determining phase fractions of a downhole fluid via thermal properties of the fluids are provided. In one embodiment, a method includes measuring a temperature of a fluid flowing through a completion string downhole in a well and heating a resistive element of a thermal detector at a position along the completion string downhole in the well by applying power to the resistive element such that heat from the resistive element is transmitted to the fluid flowing by the position. The method also includes determining, via the thermal detector, a flow velocity of the fluid through the completion string and multiple thermal properties of the fluid, and using the determined flow velocity and the multiple thermal properties to determine phase fractions of the fluid. Additional systems, devices, and methods are also disclosed.
-
公开(公告)号：US10261034B2
公开(公告)日：2019-04-16
申请号：US15310839
申请日：2015-06-01
申请人： DENSO CORPORATION
摘要： A heat flow distribution measurement device includes a sensor module having one multilayer substrate and a plurality of heat flow sensor portions arranged inside of the multilayer substrate. The multilayer substrate has one surface and another surface opposite to the one surface and includes a plurality of stacked insulating layers each formed of a thermoplastic resin. The heat flow sensor portions are each formed of thermoelectric conversion elements and are thermoelectrically independent. An arithmetic portion arithmetically determines a heat flow distribution based on an electromotive force generated in each of the heat flow sensor portions. The thermoelectric conversion elements are formed in the multilayer substrate and therefore manufactured by the same manufacturing process for manufacturing the multilayer substrate. This can minimize the performance difference between the individual thermoelectric conversion elements and allow the heat flow distribution to be measured with high precision.
-
公开(公告)号：US10254179B2
公开(公告)日：2019-04-09
申请号：US14939047
申请日：2015-11-12
申请人： FUJITSU LIMITED
摘要： A processor disposed over a substrate of an electronic apparatus acquires a first measured value from a temperature sensor disposed on the substrate, and calculates surface temperature of a surface of an enclosure of the electronic apparatus on the basis of a transfer function G(s) based on a first thermal resistance and a first thermal capacitance between a heat source over the substrate and the surface of the enclosure, a transfer function H(s) based on a second thermal resistance and a second thermal capacitance between the heat source and the temperature sensor, and the first measured value.
-
95.发明申请公开(公告)号：US20190093187A1
公开(公告)日：2019-03-28
申请号：US15813653
申请日：2017-11-15
发明人： Young Min Lee , Kyong Min Yeo
摘要： A blast furnace control system may include a hardware processor that generates a deep learning based predictive model for forecasting hot metal temperature, where the actual measured HMT data is only available sparsely, and for example, measured at irregular interval of time. HMT data points may be imputed by interpolating the HMT measurement data. HMT gradients are computed and a model is generated to learn a relationship between state variables and the HTM gradients. HMT may be forecasted for a time point, in which no measured HMT data is available. The forecasted HMT may be transmitted to a controller coupled to a blast furnace, to trigger a control action to control a manufacturing process occurring in the blast furnace.
-
公开(公告)号：US20190086351A1
公开(公告)日：2019-03-21
申请号：US16122964
申请日：2018-09-06
IPC分类号： G01N27/18 , G01N27/12 , G01N27/407 , G01N25/18 , G01N33/00
摘要： Disclosed is a gas sensor for detecting hydrogen gas in a measurement gas atmosphere, including: a first installation part defining a first inner space in communication with the measurement gas atmosphere through a solid electrolyte membrane member; a second installation part defining a second inner space in direct communication with the measurement gas atmosphere; first and second sensor elements respectively installed in the first and second inner spaces; and a calculation unit configured to calculate the concentration of the hydrogen gas according to a potential between the first and second sensor elements. The gas sensor further includes a current detecting portion that detects a current flowing through the first and second sensor elements. The calculation unit is configured to, when the current detected by the current detecting portion is larger than or equal to a threshold value, judge that the hydrogen gas is present at high concentration.
-
公开(公告)号：US20190055343A1
公开(公告)日：2019-02-21
申请号：US16164957
申请日：2018-10-19
申请人： COVESTRO LLC
发明人： George Combs , Gerald W. Phelan
IPC分类号： C08G18/76 , G01N25/18 , B32B5/18 , E04C2/20 , B32B27/06 , B32B27/40 , C08G18/09 , C08G18/16 , C08G18/18 , C08G18/22 , C08G18/42 , C08J9/14 , C08G101/00
摘要： Disclosed are methods for designing a polyisocyanurate foam-forming composition with good low temperature insulation performance. The methods include: (a) measuring the LTTR of a first polyisocyanurate faced foam laminate prepared from a first polyisocyanurate foam-forming composition comprising a blowing agent composition comprising one or more hydrocarbon blowing agents with an atmospheric pressure boiling point of at least 68° F. (20° C.), wherein the LTTR is measured according to CAN/UL S770-09 at a plurality of temperatures to identify a calculated inflection point temperature below which defines a first mathematical correlation between temperature and the LTTR of the first polyisocyanurate faced foam laminate and above which defines a second mathematical correlation between temperature and the LTTR of the first polyisocyanurate faced foam laminate; (b) identifying a plurality of predicted mathematical correlations between temperature and the LTTR of the first polyisocyanurate faced foam laminate at a plurality of reduced inflection point temperatures below the calculated inflection point temperature; and (c) using the plurality of predicted mathematical correlations identified in step (b) to design a second polyisocyanurate foam-forming composition that is different from the first polyisocyanurate foam-forming composition and which comprises a blowing agent composition comprising one or more hydrocarbon blowing agents with an atmospheric pressure boiling point of at least 68° F. (20° C.), wherein the second polyisocyanurate foam-forming composition produces a second polyisocyanurate faced foam laminate that has a LTTR of at least 5.4 ft2·hr·° F./BTU·inch (0.936 m2·° C./W@25 mm) at all mean insulation temperatures within a temperature range of 10° F. to 75° F. (−12.2° C. to 23.9° C.), when measured according to CAN/UL S770-09.
-
公开(公告)号：US10203317B2
公开(公告)日：2019-02-12
申请号：US15241024
申请日：2016-08-18
发明人： Xiuling Zhu , Gary Bruce Peckham
摘要： A multi-functional precious stone testing apparatus includes a portable housing, a testing unit, and an indication unit. The portable housing includes a hand-held casing and a probe casing extended from a front end of the hand-held casing. The testing unit includes a conductive probe having a testing end portion extended out of a tip end of the probe casing for contacting a testing object to determine a conductivity of the testing object. The indication unit includes a LED light unit received in the hand-held casing for illuminating the testing end portion of the conductive probe during testing, wherein the LED light unit is positioned away from the tip end of the probe casing for preventing heat generated from the LED light unit being transmitted toward the conductive probe to affect an accurate measurement for the conductivity of the testing object.
-
公开(公告)号：US10203288B2
公开(公告)日：2019-02-12
申请号：US14961843
申请日：2015-12-07
发明人： Xiuling Zhu , Gary Bruce Peckham
IPC分类号： G01N25/18 , G01N21/87 , G01N21/25 , G01N21/33 , G01N21/35 , G01N27/02 , G01N27/04 , G01N33/38
摘要： A multi-functional precious stone testing apparatus includes a microcontroller, a measuring unit for measuring properties of the testing object, and a functional unit. The measuring unit is arranged to measure one of a combination of ultraviolet and infrared distributions of the testing object and a combination of thermal and electrical conductivities of the testing object. The microcontroller analyzes a result from the measuring unit to generate a test result of the testing object, wherein the microcontroller includes a communication unit for connecting with an electronic device to transmit the test result thereto. The functional unit includes a voice indicator that generates a voice indication signal of the test result.
-
公开(公告)号：US20190041347A1
公开(公告)日：2019-02-07
申请号：US16050807
申请日：2018-07-31
IPC分类号： G01N27/18 , G01N27/407 , G01N27/16 , G01N25/18 , G01N33/00
摘要： Disclosed is a gas sensor for detecting a measurement target gas in a measurement gas atmosphere, including first and second sensor elements respectively installed in first and second inner spaces of first and second installation parts. The first and second sensor elements have respective heating resistors connected in series and each has a resistance value that varies with change in temperature thereof so that the concentration of the measurement target gas can be calculated according to a potential between the heating resistors of the first and second sensor elements with the application of a constant voltage. The first and second installation parts are located at such positions that allow a maximum temperature difference of 0.4° C. or less between the first and second inner spaces during change in atmosphere temperature from 0° C. to 80° C.
-
-
-
-
-
-
-
-
-
搜索结果
1445 条记录 (耗时 0.027 秒)
