Abstract: A sensor includes a mount arranged along a sensor axis, an airfoil body fixed to the mount and having a first face and second face extending along the sensor axis, a heater element, and a temperature probe. The heater element and the temperature probe are positioned within the airfoil body and extend axially along the airfoil body. The airfoil body defines within its interior a pressure channel having an inlet segment extending between the heater element and the first face of the airfoil body to prevent ice formation and/or melt ice entrained within air traversing the pressure channel. Gas turbine engines, methods of removing ice or preventing ice formation, and methods of making sensors are also described.

Abstract: Provided is a preheating thermometer, including a temperature measuring assembly, and a preheating assembly disposed on the temperature measuring assembly. The preheating assembly includes a heating material layer and a sealing film covering the heating material layer to isolate the heating material layer from air. When the preheating thermometer is used for body temperature measurement, the sealing film is removed to allow the heating material layer to produce heat due to the contact of the heating material layer with the air.

Abstract: A measurement system for an aircraft gas turbine engine includes an instrumentation hub disposed about a rotational axis. The instrumentation hub includes at least one probe. The measurement system further includes a shield hub disposed about the rotational axis and positioned axially adjacent the instrumentation hub. The shield hub includes at least one shield configured to be radially aligned with the at least one probe of the instrumentation hub. The shield hub is rotatable about the rotational axis independent of the instrumentation hub. The at least one shield is axially translatable between a first axial position and a second axial position. The at least one shield in the first axial position is axially aligned with the at least one probe. The at least one shield in the second axial position is axially separated from the at least one probe.

Abstract: An air data probe includes a probe head having an interior surface defining a cavity, a component positioned within the cavity of the probe head, a plurality of protrusions defining contact between the interior surface of the probe head and a peripheral surface of the component prior to brazing the component to the probe head, and a braze material located between the interior surface of the probe head and the peripheral surface of the component as a result of brazing the component to the probe head.

Abstract: The inventive concept provides a wafer type sensor unit which acquires data on a wind direction and a wind velocity of an air flow during processing, the wafer type sensor unit supported by a supporting unit of a substrate processing apparatus. The unit comprising a wafer-shaped circuit board and a hot-wired wind velocity sensor placed apart from an upper surface of the circuit board.

Abstract: A sensor device for calculating air temperature includes a support structure, to be traversed by the air and defining a seat having an air inlet and an air outlet, and a sensor arranged inside the seat to detect at least one first value and at least one second value of the air temperature that traverses the seat. The sensor device is configured so that, when detecting the first and second value, the air traverses the seat at a first and at a second speed, at which the sensor has a first and second heat transfer coefficient and first and second radiant power. The ratio between air speeds, heat transfer coefficients, or radiant powers is predetermined. The sensor device can be used with a data processing logic unit that calculates the air temperature starting from the first value, the second value, or the ratios between air speeds and radiant powers.

Abstract: An example temperature sensing device includes an air distribution inlet through which primary air is blown into via an environmental control system, a cabin air inlet through which secondary air enters from a passenger area of a fuselage and the cabin air inlet is coupled to the air distribution inlet through a duct and the secondary air is passively drawn into the cabin air inlet and to the duct due to a pressure difference present in the duct, and a temperature sensor coupled to the duct and positioned downstream of the cabin air inlet along an airflow path of the secondary air so as to be exposed to the secondary air drawn in through the cabin air inlet and flowing through the duct.

Abstract: The system includes a thermal probe with a heat-sensitive element, a fluid-tight plunger body, shaped to completely wrap the heat-sensitive element of the probe, a probe support including two orifices for joining the system to the duct, linked by an inner channel substantially axially extending in a main flow direction of the fluid in the support and including a radial opening through which the plunger body is configured to be at least partially submerged inside the inner channel. More particularly, the inner channel is delimited by a tubular wall having an inner surface with a depression located facing the opening in order to limit singular pressure losses of the fluid likely to be generated by the presence of the plunger body in the fluid by defining a flow pathway of the fluid around the plunger body.

Abstract: An air data probe includes a probe head having an interior surface defining a cavity, a component positioned within the cavity of the probe head, a plurality of protrusions defining contact between the interior surface of the probe head and a peripheral surface of the component prior to brazing the component to the probe head, and a braze material located between the interior surface of the probe head and the peripheral surface of the component as a result of brazing the component to the probe head.

Abstract: The present disclosure relates to a modular installation assembly, at least comprising: a rod-shaped measuring insert for sensing a process variable of a medium, an assembly housing for accommodating at least a part of said measuring insert, which housing at least comprises a first housing part and a second housing part, a first chamber provided in said first housing part, and a second chamber provided in said second housing part. Further, the assembly housing comprises a sealing element which sealing element has at least one opening through which the measuring insert proceeds, and connecting means for connecting said first housing part with said second housing part via the sealing element.

Abstract: In a sensor element 101, oxygen contained in a gas to be measured introduced into a first internal space 20 through a first diffusion control part 11 is pumped out by applying voltage between an inner pump electrode 22 and an outer pump electrode 23. After the oxygen is pumped out, NOx in the gas to be measured generates oxygen by being reduced by a measurement electrode 44. This oxygen is pumped by applying voltage between the measurement electrode 44 and the outer pump electrode 23. On the basis of current generated according to the amount of oxygen thus pumped, the NOx gas concentration is calculated. A slit width of the first diffusion control part 11 on an entrance side is larger than a slit width on an exit side.

Abstract: A system for measuring turbulence of a flow of a turbine engine, notably of a turbine engine compressor includes a first housing with a first pressure sensor and a first inlet, a second housing with a second pressure sensor and a second inlet inclined relative to the first inlet, and a temperature sensor. The system is configured to calculate at least two orientation components of the velocity of the flow on the basis of the pressure sensors and the temperature sensor. The inlets are disposed at the vane foot, on the leading edge at the level of an internal shell.

Abstract: A total air temperature sensor can include a first airfoil having a heated first surface, a second airfoil having a second surface spaced from the first surface and defining a sensor chamber, a temperature sensor located within the chamber, and a sheath surrounding the temperature sensor.

Abstract: An apparatus and a method monitor condition of a temperature measurement point in an industrial process system by sensing vibration frequency of a thermowell positioned in a process fluid flow passage and providing a diagnostic output based upon the vibration frequency sensed. The apparatus includes a temperature measurement point having a thermowell, a vibration sensor, a temperature sensor, and a transmitter. The vibration sensor is fixedly attached to the thermowell, and the temperature sensor is positioned inside a bore cavity of the thermowell. The transmitter is electrically connected to both the temperature sensor and the vibration sensor.

Abstract: A temperature-measuring device for a respiratory humidifier (1) with a liquid container (5) is provided, wherein the temperature-measuring device comprises a flow channel (9) for breathing gas and an infrared detector (21), which is directed from the outside toward the flow channel (9) for the contactless detection of the temperature of the breathing gas in the flow channel (9), wherein the flow channel (9) comprises on its lateral surface (13) a measurement portion (15), which is aligned with the surrounding areas of the lateral surface (13) and toward which the infrared detector (21) is directed, wherein the flow channel (9) comprises a flow guide element (17), which conducts the breathing gas stream to the measurement portion (15) at a previously determined inflow angle of preferably greater than 10° and less than 170°.

Abstract: Sensor probes with anti-icing and methods for manufacturing such sensor probes are disclosed. An exemplary sensor probe comprises a probe sensor, a probe body housing the probe sensor and an anti-icing device. The anti-icing device is bonded to and covers at least part of the probe body for preventing ice from forming on the probe body. The anti-icing device comprises a heating element thermally insulated from the probe body by a thermal insulator and a hydrophobic coating covering the heating element and defining an outer surface for exposure to an airflow. The heating element may be deposited using a direct write process.

Abstract: A method and apparatus for determining contents of a conduit containing at least one fluid is described. The conduit may be at least partially defined by at least one wall portion. The wall portion may be cooled. After cooling said, the temperature at least one temperature sensor located adjacent to the wall portion may be measured. A characteristic of said contents is determined based on said measured temperature at the or each temperature sensor.

Abstract: Fouling of or damage to an electromagnetic radiation-transparent window can preclude one from obtaining satisfactory images with an image acquisition unit, such as a camera. Certain types of environments may be particularly prone toward promoting fouling or damage, and manual cleaning or repair of an electromagnetic radiation-transparent window may be difficult in some circumstances. These issues may be particularly prevalent when imaging drill cuttings and other solids obtained from a wellbore due to the complex sampling environment in which these solids are often disposed.

Abstract: An aircraft air data probe contamination monitor includes at least two air data sensor probes, a first probe located on one side of the aircraft, a second probe located on an opposite side of the aircraft, each probe being operable to generate a parameter value from an airflow passing the in-flight aircraft. The monitor also includes a processor operable to compare the generated parameter value from the first probe to the generated parameter value from the second probe to determine if one of the first probe and the second probe is contaminated.

Abstract: A mounting stand for a temperature sensor is disclosed. The mounting stand includes a base, a pedestal, and a shield. The pedestal extends from the base to a pedestal end distal to the base. The pedestal includes a first hollow cylinder shape forming a bore there through. The shield includes a second hollow cylinder shape extending from the base about the pedestal and extending beyond the pedestal to a shield end distal to the base forming a flow region between the pedestal and the shield. The shield also includes a first aspiration hole extending through the second hollow cylinder shape.

Abstract: The invention provides a forced air warmer comprising: a chamber having an outlet port; an air heater arranged to heat air within the chamber; an air propagator arranged to propagate heated air from the chamber along a heated air flow path passing through the port; and a temperature sensor provided in the heated air flow path to measure the temperature of heated air propagated along the heated air flow path. The forced air warmer further comprises an air flow conditioner in the heated air flow path downstream of the temperature sensor, the air flow conditioner being arranged to condition air flow at the temperature sensor so as to improve the reliability of temperature measurements made by the temperature sensor. The forced air warmer may be used to supply heated air to an air warming blanket for regulating the temperature of a patient.

Abstract: Total air temperature (TAT) measurement systems, apparatus, and methods for measuring TAT within an airflow are disclosed. A TAT within an airflow may be measured by (1) positioning a probe within an airflow, the probe including an airfoil and a wedge defining a single channel, the single channel including a temperature sensor; (2) receiving a portion of the airflow through the single channel; and (3) determining TAT for the received portion of the airflow using measurements from the temperature sensor.

Abstract: A radiant compensated thermometer, which uses a pair of parabolic-shaped radiation shields that are spaced-apart from one another. An upper shield is positioned to intercept the sunlight from impacting on a lower shield; both shields have an outer substantially reflective surface and an inner substantially non-reflective surface. A temperature sensor is positioned in a “dead space” near the inner surface of the lower shield, which is cooler than the other areas of the device.

Abstract: A liquid ejecting head unit includes: a liquid ejecting head that ejects a liquid through nozzles by driving a pressure generation element to cause the pressure within a pressure chamber to fluctuate; a flow channel member in which is formed a flow channel that supplies the liquid to a head flow channel of the liquid ejecting head; a substrate, mounted to a side surface of the flow channel member, on which is mounted an electrical component for supplying power to the pressure generation element; and a temperature measurement device provided on the surface of the substrate that faces the flow channel member. Here, the flow channel member includes an opening that passes therethrough toward the flow channel; and the temperature of the liquid within the flow channel is measured by the temperature measurement device that is provided facing the opening.

Abstract: A total air temperature probe includes a probe body extending from a probe base to an opposed probe tip along a longitudinal axis defining a leading edge and opposed trailing edge, an interior flow passage aligned with longitudinal axis defined in probe body with an inlet defined on probe tip for fluid communication with interior flow passage, and an outlet for exhausting fluid out from interior flow passage. A sloped surface on probe tip extends from leading edge to trailing edge. A temperature sensor is mounted within interior flow passage for measuring temperature of flow through interior flow passage to determine total air temperature. Sloped surface is flush with leading edge and set in from trailing edge with respect to longitudinal axis to define a lip proximate the trailing edge. The sloped surface and lip are configured to create a high pressure region proximate inlet of interior flow passage.

Abstract: A total air temperature sensor includes a supercritical airfoil body extending from an airfoil base to an opposed airfoil tip along a longitudinal axis. The supercritical airfoil body defines an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. A temperature probe is mounted within the interior flow passage for measuring temperature of flow through the interior flow passage to determine total air temperature.

Abstract: A temperature measurement system includes a plurality of filaments. The plurality of filaments are configured to emit thermal radiation in a relatively broad and substantially continuous wavelength band at least partially representative of a temperature of the plurality of filaments. A first and second portion of the filaments has a differing first and a second diameter and/or emissivity, respectively. The system also includes a detector array configured to generate electrical signals at least partially representative of the thermal radiation received from the filaments. The system further includes a controller communicatively coupled to the detector array configured to transform the first electrical signals to a first temperature indication at least partially as a function of the first diameter and/or first emissivity and transform the second electrical signals to a second temperature indication at least partially as a function of the second diameter and/or emissivity.

Abstract: The invention concerns a device for measuring at least one physical parameter of a fluid flow, in particular the total air temperature, comprising: a profiled body (2) of elongate shape along a longitudinal axis (L) and having at least two walls arranged contiguous to each other at an acute angle to form a wedge-shaped portion (7), said wedge-shaped portion (7) extending in a direction parallel to the longitudinal axis (L) of the profiled body (2); at least one sensing element (4) for measuring the physical parameter of the fluid flow, said sensing element (4) being positioned in a window (3) formed through the profiled body (2), characterized in that each of the walls (71; 72) forming the wedge-shaped portion (7) comprises at least one notch forming a deflector angle relative to said wall (71; 72) so as to weaken the formation of ice on the wedge-shaped portion (7).

Abstract: Total air temperature (TAT) measurement systems, apparatus, and methods for measuring TAT within an airflow are disclosed. A TAT within an airflow may be measured by (1) positioning a probe within an airflow, the probe including an airfoil and a wedge defining a single channel, the single channel including a temperature sensor; (2) receiving a portion of the airflow through the single channel; and (3) determining TAT for the received portion of the airflow using measurements from the temperature sensor.

Abstract: A total air temperature probe includes a probe head having an airflow inlet, a main airflow outlet, a main probe head wall extending from the airflow inlet to the main airflow outlet, and a flow separation bend wall positioned between the airflow inlet and the main airflow outlet. The flow separation bend wall is opposite the main probe head wall across a primary flow passage defined through the probe head from the airflow inlet to the main airflow outlet. A flow separation trip feature is defined on an interior surface of the main probe head wall for tripping a boundary layer flow separation in flow in the primary flow passage, e.g., for reduction of deicing heater error.

Abstract: An apparatus for measuring the circumferential distribution of temperature in a fluid, comprising a plurality of sensor ladders, each incorporating a plurality of temperature sensors, wherein a first one of the sensor ladders partially overlaps a second one of the sensor ladders, part of the first sensor ladder not overlapping the second sensor ladder.

Abstract: The invention concerns a device for measuring at least one physical parameter of a fluid flow, in particular the total air temperature, comprising: a profiled body (2) of elongate shape along a longitudinal axis (L) and having at least two walls arranged contiguous to each other at an acute angle to form a wedge-shaped portion (7), said wedge-shaped portion (7) extending in a direction parallel to the longitudinal axis (L) of the profiled body (2); at least one sensing element (4) for measuring the physical parameter of the fluid flow, said sensing element (4) being positioned in a window (3) formed through the profiled body (2), characterized in that each of the walls (71; 72) forming the wedge-shaped portion (7) comprises at least one notch forming a deflector angle relative to said wall (71; 72) so as to weaken the formation of ice on the wedge-shaped portion (7).

Abstract: A device according to present invention embodiments measures the temperature of fluid within an IV line at selected locations. The device may be in the form of a fitting including a projection in fluid communication with a fluid channel to receive a temperature sensor. A thermally conductive receptacle may be disposed in the projection to receive the temperature sensor and partially extends into the fluid channel for contact with the fluid. The temperature sensor may be coupled to a temperature display device and/or controller to display the measured temperature and/or control a thermal element to regulate fluid temperature. The fitting may further include a looped configuration and/or a control valve that controls the flow of fluid through the fluid channel. In addition, the device may further be connected to, or be in the form of, a needle hub to measure fluid temperature proximate the entry site on a patient.

Abstract: A temperature sensing device enclosed in a housing having at least one thermally isolative wall and machined slot for isolating the temperature sensing device to ensure accurate reading of ambient temperature in room.

Abstract: Ambient temperature for a temperature sensor can be calculated using a mobile temperature sensor system that samples air from the boundary layer around a mobile platform and passes the air through a measurement cell containing two flush-mounted or embedded sensor elements. A common reference voltage can be applied by control circuitry to minimize drift in the sensor element readings and to calculate the ambient temperature.

Abstract: The invention provides a total gas temperature sensor for measuring the temperature of gas in a gas flow. A gas temperature sensor in accordance with the invention comprises a measurement chamber having a gas inlet and a gas outlet; an outlet valve located at the gas outlet, operable to seal the gas outlet when in a closed position, and a temperature sensing element located in the measurement chamber. The sensor is simple to manufacture, is robust, provides for a low recovery correction and does not suffer from significant boundary layer problems.

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 temperature probe for measuring the temperature of an airstream containing ice particles includes a fin which is positioned upstream of a temperature sensor. The fin causes the ice particles to be directed away from the temperature sensor. Both the fin and the temperature sensor are disposed in an unsheltered location where they are directly exposed to the airstream.

Abstract: A probe includes a sensing element and a carrier for the sensing element. The carrier has an integrated device for guiding an air stream to the sensing element, and a long axis perpendicular to a plane defined by the flow direction of the air stream. The probe is substantially symmetric with respect to the plane.

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 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: In order to provide a robust, weather resistant, portable, low-noise, relatively inexpensive, wind direction detection device, disclosed herein is a method and device for detecting fluid flow direction based on sensing a temperature variation transmitted from a temperature variation source to one or more temperature sensors. One or more indicators are utilized to communicate the measured fluid flow direction to a user. An implementation of the fluid flow direction detection device utilizes a resistance heater as the temperature variation source, thermistors as the temperature sensors, and light emitting diodes (LEDs) corresponding to each thermistor as the indicators. The thermistors and LEDs are arranged in a circular fashion around the resistance heater to accurately detect the direction of a thermal plume generated by the resistance heater.

Abstract: An apparatus for measuring the temperature of outside air provided with a thermometer mounted in a housing connected to a forced ventilation blower for drawing a current outside air across the thermometer and with a Venturi nozzle having an air penetration opening disposed orthogonally relative to the air current for generating vacuum pressure and prevent reverse flow of air through the housing.

Abstract: A thermal flow detecting apparatus detects fluid flow in a main flow passage. A bypass passage portion is provided through which some fluid bypasses the main flow passage. A detecting element is provided in the bypass passage portion and arranged at a location eccentrically displaced from the center of a cross section of the bypass passage portion. A throttle portion is provided upstream of the eccentric detecting element in the bypass passage portion for throttling the cross section partially on a side of the detecting element.

Abstract: A method and apparatus for measuring the temperature of a gas in a mass flow controller is described. One embodiment derives gas-temperature information from a mass flow sensor of the mass flow controller without relying on a separate temperature sensor. This embodiment supplies a substantially constant electrical current to a thermal mass flow sensor of the mass flow controller, the thermal mass flow sensor being designed to measure a mass flow rate of the gas; measures an input voltage of the thermal mass flow sensor to obtain a present input voltage, the input voltage varying with a temperature differential between a pair of sensing elements of the thermal mass flow sensor; calculates an adjusted input voltage by accounting for a component of the present input voltage that is dependent on the mass flow rate of the gas; and calculates the temperature of the gas based on the adjusted input voltage.

Abstract: The invention provides a total gas temperature sensor for measuring the temperature of gas in a gas flow. A gas temperature sensor in accordance with the invention comprises a measurement chamber having a gas inlet and a gas outlet; an outlet valve located at the gas outlet, operable to seal the gas outlet when in a closed position, and a temperature sensing element located in the measurement chamber. The sensor is simple to manufacture, is robust, provides for a low recovery correction and does not suffer from significant boundary layer problems.

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 sensor for measuring a physical parameter of a fluid, in particular for measuring total air temperature, the sensor comprising: a fluid intake (1) fitted to a streamlined body (2); a duct provided in said streamlined body (2) to enable fluid flow, said duct communicating with said fluid intake; and a sensing element disposed inside said duct. The sensor is characterized in that it includes elements that give it improved measurement performance. In particular, the proposed air intake presents an inlet section which extends so as to define a sliding surface suitable for eliminating ice. The invention also provides an improved system for sucking in the boundary layer by using slots, and it also provides a ceramic sensing element that provides better thermal decoupling relative to the de-iced body.

Abstract: A device according to present invention embodiments measures the temperature of fluid within an IV line at selected locations. The device may be in the form of a fitting including a projection in fluid communication with a fluid channel to receive a temperature sensor. A thermally conductive receptacle may be disposed in the projection to receive the temperature sensor and partially extends into the fluid channel for contact with the fluid. The temperature sensor may be coupled to a temperature display device and/or controller to display the measured temperature and/or control a thermal element to regulate fluid temperature. The fitting may further include a looped configuration and/or a control valve that controls the flow of fluid through the fluid channel. In addition, the device may further be connected to, or be in the form of, a needle hub to measure fluid temperature proximate the entry site on a patient.

Abstract: Ambient temperature for a temperature sensor can be calculated using a mobile temperature sensor system that samples air from the boundary layer around a mobile platform and passes the air through a measurement cell containing two flush-mounted or embedded sensor elements. A common reference voltage can be applied by control circuitry to minimize drift in the sensor element readings and to calculate the ambient temperature.