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| Number | Title | Issue Date |
| 7338202 | Ultra-high temperature micro-electro-mechanical systems (MEMS)-based sensors Novel micro electro mechanical systems (MEMS)-based sensors for use in ultra-high temperature environments are disclosed. The MEMS-based sensors are derived from a class of polymer-derived ceramics selected from the group consisting of SiCN, SiBCN and SiAlCN. The ma... | 03/04/2008 |
| 7306365 | Differential scanning calorimeter accounting for heat leakage A method and system for calculating a heat flow to a sample in a differential scanning calorimeter (DSC). The DSC has a sensor within an enclosure comprising an absolute temperature measurement detector for measuring the temperature of a base position on the sensor,... | 12/11/2007 |
| 7220050 | Method using flux sensors to determine the output of a thermal reaction within a housing and device for carrying out such a method The method uses heat flux sensors to determine the exchange area A between a reagent and housing containing the reagent, with the aim of determining the characteristics of the housing and the thermal reaction studied. The flux sensors are arranged at the housing in ... | 05/22/2007 |
| 7168851 | Apparatus and method for measuring heat dissipation An apparatus for measuring heat dissipation of a target heating element includes a reference heating element for emitting heat; a control unit; and a pair of temperature measuring devices for measuring representative temperatures of the target and the reference heat... | 01/30/2007 |
| 7125163 | Simple high accuracy high energy calorimeter An exemplary calorimeter includes a body configured to capture radiation generated by a source of the radiation, such as without limitation a laser, and absorb energy from the captured radiation. The calorimeter is simple to manufacture, operate, and maintain and is... | 10/24/2006 |
| 7069976 | Method and arrangement for controlling the temperature of the outstream flow from a heat exchanger and measuring produced heat Process and device for controlling the temperature of an outbound secondary flow in a secondary circuit from a heat exchanger by a primary flow in a primary circuit, via a member that regulates the primary flow, influenced by a control unit. The enthalpy difference ... | 07/04/2006 |
| 7025497 | Differential scanning calorimeter accounting for heat leakage A method and system for calculating a heat flow to a sample in a differential scanning calorimeter (DSC). The DSC has a sensor within an enclosure comprising an absolute temperature measurement detector for measuring the temperature of a base position on the sensor,... | 04/11/2006 |
| 7018093 | Apparatus and method for sensing defects in temperature sensors In a temperature controlling apparatus for controlling temperature by using a temperature sensor, a defect state of the temperature sensor is sensed by sensing a change of specific resistance of the temperature sensor. A temperature value of the temperature sensor i... | 03/28/2006 |
| 6962435 | Condition diagnosing The present invention discloses a method and apparatus (5) for condition diagnosing of an inductive power device (1), such as a transformer or reactor, having power windings (2) immersed in a fluid (3) being cooled by cooling devices (... | 11/08/2005 |
| 6960017 | Non-invasive energy meter for fixed and variable flow systems An energy metering method and apparatus for liquid flow systems comprising first and second segments of one or more conduits through which a liquid flows, comprising: attaching a first temperature sensor for connection to an outside of the first conduit segment; att... | 11/01/2005 |
| 6948362 | Flow measurement device An improved flow measurement device is provided in a flow path for direct measurement of flow. An internal heat source solves the problem of heat transfer in conventional mass flow meters. The heat transfer associated with the internal heater forms the basis of flow... | 09/27/2005 |
| 6843595 | Differential scanning calorimeter accounting for heat leakage A method and system for calculating a heat flow to a sample in a differential scanning calorimeter (DSC). The DSC has a sensor within an enclosure comprising an absolute temperature measurement detector for measuring the temperature of a base position on the sensor,... | 01/18/2005 |
| 6627451 | Process and device for measuring combustion heat in a calorimetric bomb A water bath accommodating a calorimetric bomb (2) for measuring the combustion heat of substances with the aid of a calorimeter. The inner tank (3) is enclosed by an outer container (5) forming a water jacket and is shielded from the environment. If seve... | 09/30/2003 |
| 6250371 | Energy transfer systems An earth energy loop transfer system with a moving energy transfer fluid, the system for transferring energy for an entity, the system having means for measuring an amount of energy transferred for the entity to or from the moving energy transfer fluid, a... | 06/26/2001 |
| 6210035 | High-speed thermal analyzer A thermal analyzer includes a processor for processing a thermal analysis signal of a sample obtained by performing high-speed thermal analysis of the sample at an experimental heating rate. The processor includes a peak component calculator for calculati... | 04/03/2001 |
| 6203191 | Method of junction temperature determination and control utilizing heat flow A method and apparatus is provided for monitoring and controlling the temperature at the heat producing portion of an electrical current carrying device without direct measurement at the heat producing site. An integrated circuit 22 is thermally attached ... | 03/20/2001 |
| 5902043 | Apparatus and method for measuring heat power consumed in or extracted from a region A heat meter for measuring the amount of heat consumed in a region. A heat exchanger is supplied with heated fluid through an inlet pipe which carries temperature sensors for sending signals to a control. The control also receives signals from a temperatu... | 05/11/1999 |
| 5758969 | Instrument for measuring the energy of optical radiation particularly laser radiation In an instrument for measuring the energy of optical radiation, particularly laser radiation, a number of radiation absorbing plate-like foraminous elements are disposed in a tubular housing such that the radiation entering at one end of the housing is su... | 06/02/1998 |
| 5746061 | Physchrometric measurement of air flow through airconditioning evaporator A method for determining airflow through an air cooling and dehumidifying coil by measuring the condensate rate and the moist air conditions entering and leaving the coil. The mass air flow, the volume air flow and the cooling capacity are then calculated... | 05/05/1998 |
| 5707150 | Apparatus for computing BTU content in a sample of gas An apparatus for measuring the BTU content of a gas includes a source of combustion air, a detector and a sample loop or tube connected to a six-port switching valve. The switching valve allows accurate and repeatable quantities of the gas to be obtained ... | 01/13/1998 |
| 5493100 | Thermistor flow sensor and related method A fluid flow rate measuring apparatus having a thermistor exposed to a flow of fluid and a driver circuit operable in an initial constant-voltage mode, in which it applies a substantially constant voltage across the thermistor, and a subsequent constant-c... | 02/20/1996 |
| 5398694 | Animal biocalorimeter and waste management system A biocalorimeter and waste management system is provided for making metabolic heat release measurements of animals or humans in a calorimeter (enclosure) using ambient air as a low velocity source of ventilating air through the enclosure. A shroud forces ... | 03/21/1995 |
| 5353653 | Heat exchanger abnormality monitoring system A system for monitoring abnormalities in a heat exchanger having heat-exchange tubes for heating feed water with extraction steam, an inlet and an outlet for the feed water, and a drain cooling zone, includes a process input, an apparatus for calculating ... | 10/11/1994 |
| 5297396 | Air conditioning apparatus having a plurality of indoor units connected to an outdoor unit A variable-capability compressor and an outdoor heat exchanger installed in an outdoor unit and indoor heat exchangers installed in each of a plurality of indoor units are connected by pipes so as to form a refrigerating cycle. The air-conditioning load o... | 03/29/1994 |
| 5255977 | Method and device for monitoring the efficiency of a condenser The invention relates to a method and to an apparatus for monitoring the heat transfer and therefore the efficiency of a condenser. A water column is formed by shutting off a condenser pipe which assumes the steam temperature Ts and whose outfl... | 10/26/1993 |
| 5215704 | Method and apparatus for in situ testing of heat exchangers Using the method of this invention, the performance of a heat exchanger is determined by measuring the heat transfer capabilities of an individual tube. A relatively small reservoir of service fluid is connected to the inlet and outlet ports of a tube. Th... | 06/01/1993 |
| 4993842 | Calorimetric detection unit and calorimetric member for conduction flow type calorimeter A detection unit essentially consists of (I) a plurality of calorimetric detection elements for the conduction flow type calorimeter each consisting essentially of a plurality of thermopiles severally supported on heat sinks and (II) a heat insulating mem... | 02/19/1991 |
| 4851013 | Gasification process A process for monitoring the conditions in the reaction zone of a gasifier in a process for the gasification of coal to produce synthesis gas is disclosed, the process being characterized by continual or periodic calculation of the rate of steam productio... | 07/25/1989 |
| 4764024 | Steam trap monitor A steam trap monitor positioned downstream of a steam trap in a closed steam system includes a first sensor (the combination of a hot finger and thermocouple well) for measuring the energy of condensate and a second sensor (a cold finger) for measuring th... | 08/16/1988 |
| 4718478 | Procedure for controlling a thermal installation A process controlling a thermal installation is described. The flow of a process liquid through a heat exchanger is achieved dependent upon two temperatures. One is the return temperature of the process liquid which, through the switching on and off or mo... | 01/12/1988 |
| 4639876 | Multi-unit energy use monitor A system for monitoring energy use by each of a plurality of tenants or other users of energy provided by a common heating/cooling plant and for allocating the energy expense for a building among such users on a pro-rata basis.... | 01/27/1987 |
| 4618266 | Measurement of energy in flowing fluid Energy transmitted to a load in a fluid medium is measured utilizing a probe having an elongate heat transmitter that includes a sensing tip at one end, a heat exchanger at its opposite end, a thermal impedance forming at least a segment of the heat trans... | 10/21/1986 |
| 4591988 | Energy cost allocation method and system A method for allocating energy costs comprises sensing a first parameter; comparing the sensed parameter with a selectable value of the parameter; initiating recording of data when the sensed parameter bears a predetermined relation to the selectable valu... | 05/27/1986 |
| 4577977 | Energy submetering system A system for submetering artificial energy consumption in a multi-user environment in which a single central system source services the several separate users by means of individual space conditioning subsystems is disclosed which enables accurate proport... | 03/25/1986 |
| 4558958 | Energy consumption indicating system There is disclosed an energy consumption indicating system for a multi-occupancy dwelling including a plurality of units each having a space heat exchanger and a thermostat and wherein said multi-occupancy dwelling is provided with a main heat exchanger h... | 12/17/1985 |
| 4538925 | Thermal power measuring device The invention discloses a device for measuring thermal power without using movable and wearable elements, which is also appropriate for small flow of thermal power. The device measures the thermal power by means of temperature differences only and is appl... | 09/03/1985 |
| 4531843 | Calorimeter A calorimeter for the measurement of a quantity of heat given up by a fluidic medium in at least one heat exchanger, with an impellerless flow velocity measuring device as well as temperature sensors for determining the forward flow-return flow temperatur... | 07/30/1985 |
| 4509679 | Energy use monitoring system The system includes a central fluid heater or cooler and an electrically driven centrifugal pump which pumps fluid therefrom to a supply main from which individual lines lead to each unit supplied. Return lines from each unit bring the used fluid back to ... | 04/09/1985 |
| 4484471 | Flow meters A meter for measuring the rate of flow of a fluid comprises an inlet and outlet for the fluid, a surface intermediate of said inlet and outlet over which the fluid will flow in passing from inlet to outlet, a second surface maintained at a different tempe... | 11/27/1984 |
| 4485449 | Method and apparatus for the direct measurement of thermal energy transferred by a fluid medium In the direct measurement of thermal energy transferred in heating or air conditioning installations, the difference between voltages from outflow and return flow temperature sensors is integrated during a first timing period and then discharged during a ... | 11/27/1984 |
