Abstract: A heat flux measurement device includes at least two thermocouples disposed within a front portion of the device at different axial distances from a front wall of the device. A correlation between the measured heat fluxes from the device over a period of time is used to estimate a fouling thickness on a wall, for example, a water wall of a radiant syngas cooler (RSC).

Abstract: Disclosed herein are a method and an apparatus to identify alpha-emitting radionuclides and to measure absolute alpha radioactivity using a low temperature detector. A 4? metallic absorber which encloses a radioactive material containing alpha-emitting radionuclides absorbs the total alpha decay energy in the form of thermal energy. The corresponding temperature changes are measured by a low temperature detector attached to the 4? absorber with high energy resolution. The identification of alpha-emitting radionuclides is declared by comparing the measured temperature signal with characteristic decay energy of radionuclides. The absolute amount of the radionuclides is determined by counting the number of the pulses for each of the identified nuclides.

Abstract: A tip element that is capable of being removably attached to an infrared thermometer and includes an axisymetric body having a distal end and an open proximal end. A membrane is located at the distal end of the body that is formed of an infrared transparent material. At least one engagement mechanism is mounted along the proximal edge of the body that has an engagement surface that passes circumferentially about a portion of the proximal edge and which contains an integral rib that extends axially toward said distal end of said body.

Abstract: A portable noncontact thermometer comprising a housing defining an aperture for ingress of incident thermal energy in a field of view. A graphical display is fixed with respect to the housing. The thermometer further comprises a thermopile array including a plurality of thermopile elements positioned inside the housing so as to be impinged by the incident thermal energy. The thermometer further includes processing circuitry in electrical communication with the thermopile array. The processing circuitry is operative to produce on the graphical display a thermal image of the field of view. The processing circuitry is further operative to determine a temperature of a target location within the field of view based on electrical signals derived from a subset of the thermopile elements. The subset of thermopile elements may be a single thermopile element located approximately at a center of the thermopile array.

Abstract: A thermometer is provided. A housing has at least one opening. A dielectric element is disposed in the housing. At least one microwave guide is coupled to the at least one opening for providing a signal into the dielectric element for propagation at a resonant frequency and for receiving the signal from the dielectric element. A temperature determination unit receives the signal from the at least one microwave guide, measures the resonant frequency of the dielectric element, and determines the temperature of the dielectric element based on a relationship between resonant frequency and temperature of the dielectric element.

Abstract: A probe cover for an infrared electronic thermometer including a generally tubular body having open first and second ends. The body is sized and shaped to receive a probe of the infrared electronic thermometer into the body through the first end. The probe cover further includes a film closing the second end of the body. The film has a metallic region defining a blackbody portion for rapidly equilibrating to a temperature corresponding to the temperature of an object for viewing by a sensor of the electronic thermometer to measure the temperature of the object.

Abstract: A very high speed temperature probe is provided that can be used in medical applications and in environments that are corrosive or hostile. The probe has a thin wall housing made of a thermally conductive material, a thin film RTD temperature sensor which is mounted within the interior of the housing and is embedded within a temperature cured composite material. A thermally conductive material is used to fill the interior of the housing. The thin wall housing and absence of entrapped air bubbles or voids in the cured composite and thermally conductive materials cooperate to achieve a low thermal time constant and thus, high temperature measuring speed for the probe.

Abstract: A detector for identifying a fluid is disclosed. The detector comprises a probe having a thermistor, the probe being arranged to be exposed to a fluid and to allow thermal flow between the fluid and the thermistor; a temperature sensor to measure the ambient temperature of the fluid and a controller. The controller is arranged to supply electrical power to the thermistor and to provide an output indicative of the identity of the fluid based upon whether the electrical power supplied to the thermistor is above or below a threshold value. The threshold value is adjustable in accordance with the measured ambient temperature of the fluid. Examples of such a detector provide reliable fluid identification despite variations in ambient temperature of the fluid and such a detector may be compact, inexpensive, reliable and robust.

Abstract: A very high speed thin film RTD sandwich is provided that can be used in high speed temperature probes for medical applications and in environments that are corrosive or hostile in a protected configuration, as well as ambient and surface temperature measurements in an unprotected configuration. The high speed is achieved by maximizing the transfer of heat from the outside perimeter of the sandwich to its internal thin film RTD element to the absolute minimum of time. The thin film RTD element is electrically insulated by the extremely thin film layers. The insulating layers and thin film RTD are then embedded in two layers of high purity silver, the element with the maximum conduction coefficient of heat transfer k.

Abstract: A portable temperature sensing probe (10) having a plurality of thermocouples (18) is inserted into a tank (16) mounted on a truck or other receptacle at the time of loading a hot liquid, e.g., molten sulfur (14). The probe and at least a portion of the associated wiring or leads are attached to the loading pipe (22) and/or discharge nozzle, and the probe is inserted into the interior of the tank before the molten sulfur (14) is discharged. The signals from the plurality of thermocouples (18) are amplified and the corresponding temperature information is transmitted to a display and control device (30). Due to the significant differential between the temperature of the rising molten sulfur (14) and the vapors in the tank overhead space (26), the signals generated indicate which of the thermocouple (18) are in contact with molten sulfur (14) or the vapor zone (32). The generated signals adjust the shut-off valve (38) that controls the flow of molten sulfur (14) into the tank (16).

Abstract: Methods and apparatus for measuring substrate uniformity is provided. The invention includes placing a substrate in a thermal processing chamber, rotating the substrate while the substrate is heated, measuring a temperature of the substrate at a plurality of radial locations as the substrate rotates, correlating each temperature measurement with a location on the substrate, and generating a temperature contour map for the substrate based on the correlated temperature measurements. Numerous other aspects are provided.

Abstract: A total air temperature probe includes an inlet through which airflow enters a primary airflow passage through the probe. A sensor flow passage is connected to the primary flow passage. Bleed ports extend between the primary airflow passage and a cross-port which extends laterally across the probe. An aspiration aperture in the cross-port couples the cross-port to an internal cavity of a strut of the probe. The aspiration aperture can be centered within the cross-port to provide symmetrical deicing heater error behavior of the probe during changes in angle of attack. An aspiration tube couples the internal cavity of the probe to a pressure source.

Abstract: A solution for measuring steam quality in a steam turbine is disclosed. A steam quality measurement (SQM) device and an ejector are coupled to a steam turbine through an appropriate piping configuration to draw steam emitted from the turbine through the SQM device for measurement of the steam quality, for example, continuously, during operation of the turbine.

Abstract: A temperature detector includes a plurality of comparators, an electronic component and a controller. Each of the comparators is responsible for detecting different temperature ranges. The electronic component has a temperature-dependent threshold voltage and an output connected to inputs of the plurality of comparators. The controller is configured to enable only one of the comparators at one time and to generate a value to the other inputs of the plurality of comparators.

Abstract: A thermistor includes a thermistor body and terminal electrodes disposed at both ends of the thermistor body. A first lead is longer than a second lead. The first and second leads include tips having inclined shapes that are cut such that metal lines are surface-exposed, respectively. The thermistor body is attached at a predetermined side position of the first lead such that the first lead and a side folding portion of the terminal electrode form a predetermined angle ?. The terminal electrode and the first lead are connected to each other through solder, and the second lead and the terminal electrode are connected to each other through solder. This can prevent the occurrence of damage even if an excessive thermal stress is applied. The temperature sensor with leads having stable electric connection with the temperature sensor that has satisfactory detection sensitivity and high reliability is achieved.

Abstract: This present invention discloses a detachable probe cover for an ear thermometer and a manufacturing method thereof. The detachable probe cover for the ear thermometer is for being mounted onto a measuring probe of the ear thermometer, wherein a combining mechanism is provided at a bottom of the measuring probe and the detachable probe cover comprises a main body of a hollow structure and a base, in which the main body has an open end and a closed end opposite to the open end, and the hollow structure has a diameter gradually reducing from the open end toward the closed end.

Abstract: A method for precision thermal measurement and control, especially for bioreactors, as well as the correction of temperature sensitive probes such as pH and dissolved oxygen. Typical control requirements are +/?0.1° C. The thermal measurement circuit converts a sensor output to a high level voltage or current with great accuracy and provides noise immunity and sensor isolation. While digital outputs from sensor converters can have the greatest noise immunity, the noise associated with digital circuitry may contaminate low level sensor signals so in many cases an analog sensor converter is preferred because of low noise generation, especially if the converter is near the sensor. The circuit is low cost, reliable, generates minimal heat is immune to, and does not generate noise, and requires minimal calibration effort.

Abstract: A system comprises a temperature sensor generate multiple base-emitter voltage signals by sequentially providing various currents to a transistor, and a system controller to determine a differential voltage signal according to the multiple base-emitter voltage signals, the differential voltage signal proportional to an environmental temperature associated with the transistor.

Abstract: A liquid container capable of self-generating power and showing temperature, comprising: a) a containing body consisting of a housing and an inner wall, a gap being formed between the housing and the inner wall; b) a circuit board positioned within the gap; c) a temperature sensor positioned in the gap for measuring the temperature of the contained liquid, the temperature sensor being electrically connected to the circuit board; d) a temperature indicator disposed in the gap and electrically connected to the circuit board, a displaying surface thereof being positioned on the surface of the housing; and e) a temperature difference power-generating element positioned within the gap and electrically coupled to the circuit board, a thermoelectric effect being created by the hot water filled into the space defined by the inner wall such that a thermal energy can be converted into the electric energy that is stored by an energy-accumulating element for providing the temperature indicator and the related elements wi

Abstract: An aircraft brake assembly (10) includes a torque tube (16) having a passageway (18) for receiving a temperature probe, the passageway (18) having a wall and a width (W) and a length, and a temperature probe (20) having a width (w) less than the passageway width (W) and at least one angled portion (34, 36) where a centerline (44) of the temperature probe (20) changes direction. The temperature probe (20) has a lateral offset (L) greater than the passageway width (W) so that the probe (20) cannot be inserted into the passageway (18) without flexing it at the at least one angled portion (34, 36), and the temperature probe (20) is mounted in the passageway (18) and held in a flexed state by the passageway wall. Also a method of mounting a temperature probe in a brake assembly.