Rosemount Aerospace Limited

Rosemount Inc.

Oxford Rf Sensors Limited

Goodrich Corporation

Richard William Phillips

Martin Roy Harrison

Peter Wherritt

Chansay Em

Chad P Stay

David Patrick Potasek

Robert E Sable

Venkata Anil Kumar Mothe

Lisa Graham

Ramesh Annamareddy

James Russell Powell

Venkata AnilKumar Mothe

Irene Glozman

A temperature sensor assembly for measuring a gas temperature in a gas flow stream includes a first substrate having a first surface configured to be connected to a thermally conductive structure in a gas path, a first temperature sensor mounted to the first substrate a first distance from the first surface, and a second temperature sensor mounted to the first substrate a second distance from the first surface. The second distance is less than the first distance. The first and second temperature sensors are arranged along a temperature gradient.

Surface mount temperature measurement

A probe includes a probe head, a probe tip extending from the probe head and having a sensor in fluidic communication with a first fluid stream, a pressure channel extending into the probe tip through the sensor face with a pressure sensor that senses pressure in the pressure channel, and a temperature channel extending into the probe tip through the sensor face. The temperature channel including a temperature orifice disposed on the sensor face and at least one exit port distal from the sensor face. The temperature channel is parallel to and fluidly separate from the pressure channel and includes a temperature sensor that senses temperature in the temperature channel. The temperature channel directs fluid flow from the temperature orifice to the at least one exit port, thereby discharging fluid flow into a second fluid stream.

Flush-mount combined static pressure and temperature probe with flow enhancement feature

Apparatus and associated methods relate to measuring temperature of a fluid within a hydraulic vessel using a temperature probe that has an annular recess circumscribing a projecting sensor tip. The annular recess is configured to permit fluid flow into an aperture region of a vessel wall through which the temperature probe contacts the fluid within the hydraulic vessel. Because the temperature probe projects from the annular recess within the aperture, a net projection dimension, as measured in a projection direction from an interior surface of the vessel wall proximate the aperture to a sensor, is less than a gross projection dimension, as measured in the projection direction from a bottom of the annular recess to the sensor tip. In some embodiments, this configuration advantageously improves a ratio of thermal conductivity between the fluid and the temperature probe and thermal conductivity between the temperature probe and a sensor housing.

Fast response and accurate temperature measurement of a hydraulic fluid

A thermocouple assembly for use in a high-temperature gas path that includes a thermocouple. The thermocouple includes a first conductor and a second conductor, the first and second conductors formed of different materials and coupled to one another by junction, a metal sheath surrounding the first and second conductors wherein the metal sheath is substantially coaxial with the both the first conductor and the second conductor. The assembly also includes: a first termination electrically coupled to the first conductor; a second termination electrically coupled to the second conductor; a first connector configured to couple to the first termination; a second connector configured to couple to the second termination; and a housing configured to cover the first and second terminations and the first and second connectors.

Coaxial high temperature thermocouple background

Apparatus and associated methods relate to generating a temperature measurement signal based upon a weighted average of signals generated by a resistive temperature detector (RTD) and a thermocouple device. The thermocouple device includes first and second thermocouple junctions. The first thermocouple junction is thermally coupled to the RTD, and the second thermocouple junction is thermally isolated from the RTD. The thermocouple is configured to generate a signal indicative of a difference between first and second thermocouple junctions, which is substantially equal to the difference between the RTD and the second thermocouple junction due to the thermal coupling configuration. The RTD generates a signal indicative of a temperature of the RTD. A weighted sum of the first and second signals is indicative of a temperature of the second thermocouple junction, which responds rapidly to temperature fluctuations, due to its having a relatively small thermal mass compared with the RTD.

Accurate and fast response temperature measurement

An electromagnetic field sensor assembly for blade tip clearance measurement in a gas turbine engine is disclosed that includes a ceramic sensor body, a multi-layered wire coil wound about a distal end portion of the sensor body for producing an electromagnetic field, a ceramic well enclosing the sensor body and the coil, and a metallic housing surrounding the well and having an open distal end.

Blade tip clearance measurement sensor for gas turbine engines

A liquid level sensing system including a housing configured to hold a liquid, a first temperature sensor connected to the housing and configured to output a first signal representing a first temperature measured at the first temperature sensor, a second temperature sensor connected to the housing and configured to output a second signal representing a second temperature measured at the second temperature sensor, and a circuit configured to receive the first and second signals as input and to provide an output signal proportional to the time rate of change of the difference between the first signal and the second signal.

Systems and methods for liquid level sensing having a differentiating output

A multi-element thermocouple circuit includes at least two temperature measuring junctions. A first temperature measuring junction is formed by first and second thermoelements, each of the first and second thermoelements being formed of a noble metal or a noble metal alloy. The second temperature measuring junction, which connects to the distal end of the first thermoelement, is formed by third and fourth thermoelements, neither of which is formed from a noble metal or a noble alloy. A fifth thermoelement connects to the distal end of the second thermoelement and is formed of the same material as the fourth thermoelement. During operation, the distal ends of the third and fourth thermoelements define therebetween a first voltage difference corresponding to a temperature at the second temperature measuring junction, while the distal ends of the fourth and fifth thermoelements define a second voltage difference from which a temperature at the first temperature measuring junction may be obtained.

Multi-element thermocouple

A platinum resistance thermometer has an outer housing with a bore that receives a temperature sensor assembly including a mandrel having a sensing section with a platinum wire wound thereon and supported in the bore with a non-cohesive powder material that will distribute stresses caused by differential thermal expansion between the housing and the temperature sensor assembly. A second portion of the mandrel is supported in the bore with a rigid epoxy to mechanically support the sensor assembly with the sensing section cantilevered from the rigid epoxy.

Housing for temperature sensing assemblies in a thermometer

A temperature probe has a sensor housing with a sensor head and an associated scoop, together forming a primary airflow path, with the sensor head containing a sample chamber for the thermal sensor. Gaseous fluid is caused to pass through the primary airflow path, where its pressure is increased. The sample chamber is adjacent to the primary airflow path and configured to draw a sample of the flowing gaseous fluid out of the primary airflow path and bring it to and through the sampling chamber, while maintaining the sampled flow at essentially the same immersion depth as the primary airflow path. The sensor is connected to the housing and extends into the sampling chamber so that the gaseous fluid flows across the sensor's axis and sensing surface, rather than along the sensor's longitudinal axis.

Total temperature probe

A temperature probe includes a sensor material optically communicating with a waveguide, and a sheath having a sheath coefficient of thermal expansion substantially matched to a thermal expansion coefficient of the waveguide. The waveguide has first and second ends secured proximate corresponding sheath ends. In another aspect of the invention, waveguide ends are secured near the sheath ends, the sheath is bent at one or more locations so that it is noncylindrical, and a midsection of the waveguide is loosely held within the bent sheath. In still another aspect of the invention, a metallic tube with the sensor material disposed therein is secured to the waveguide by direct attachment to a metallic coating on the waveguide.

Optical temperature probe assembly

A temperature probe measures the temperature of a fluid which moves relative to the probe. The probe includes a housing, a transducer, and one or more fins. The housing has a bore with a bore axis and carries at least a portion of the fluid along the bore axis. The transducer has a sensing length, and the fin thermally couples to the transducer along substantially the entire sensing length. The fin is also substantially aligned with the bore axis to promote laminar flow of the fluid in the bore. In a preferred embodiment the transducer is held within a protective tube, and the fin attaches to the tube along a fin inner edge. The fin also attaches along a fin outer edge to a radiation shield encircling the tube, the fin outer edge being shorter than the fin inner edge.

Growing community of inventors

Eagan, MN, United States of America

Richard William Phillips