WESTON AEROSPACE LIMITED Patent applications |
Patent application number | Title | Published |
20130243035 | RESISTOR AND A METHOD OF MANUFACTURING A RESISTOR CAPABLE OF OPERATING AT HIGH TEMPERATURES - The invention provides a thermocouple assembly for use with a thermocouple harness in a gas turbine engine, comprising a thermocouple connected to a resistor, the resistor comprising a conductor, a mineral insulating material surrounding the conductor, and a metal sheath surrounding the conductor. | 09-19-2013 |
20130071230 | SYSTEM AND METHOD FOR DETECTING ABNORMAL MOVEMENT IN A GAS TURBINE SHAFT - A sensor element for use in a backing sensor to monitor a gas turbine shaft. The sensor includes an oscillator circuit | 03-21-2013 |
20130063127 | NOISE REDUCTION SYSTEM AND METHOD - A system and method for measuring frequency which reduces the impact of noise. The system and method includes the steps of sampling a signal train ( | 03-14-2013 |
20130014586 | DUAL OUTPUT ACCELEROMETER SYSTEMAANM Walling; PaulAACI HampshireAACO GBAAGP Walling; Paul Hampshire GBAANM Yeomans; DavidAACI HampshireAACO GBAAGP Yeomans; David Hampshire GB - There is disclosed a dual output compressive mode accelerometer having first and second output channels, comprising:
| 01-17-2013 |
20120112769 | Method and system for inductive sensing of blades in a turbine engine - A method is provided for determining timing points indicative of the passage of a blade in a turbine engine. The method comprises the steps of: providing a s first sensing coil proximate to a path of the blade, providing a second sensing coil proximate to the path of the blade, the second sensing coil spaced from the first sensing coil in a direction parallel to the path of the blade, and comparing a signal generated in the first sensing coil with a signal generated in the second sensing coil to derive a timing point indicative of the passage of the blade. | 05-10-2012 |
20110308331 | Speed or torque probe for gas turbine engines - There is provided a variable reluctance sensor for sensing the speed or torque of a shaft in a gear box or gas turbine engine, comprising a magnetic pole piece a conductive wire wrapped around the pole piece a housing surrounding the pole piece, the housing having a front face and at least one side wall, wherein, in use, the front face is positioned proximate to an object to be sensed wherein the pole piece is rigidly fixed to the side wall of the housing. This arrangement reduces microphony in the sensor. | 12-22-2011 |
20110252884 | Vibrating cylinder transducer with protective coating - The invention provides a vibrating cylinder transducer for measuring the pressure or density of a fluid medium comprising: a cylindrical vibrator, in use having at least one surface coupled to a fluid medium to be measured; a drive means for vibrating the cylindrical vibrator; a sensor for detecting the resonant frequency of the cylindrical vibrator; and an output coupled to the sensor, the output configured to provide an output signal indicative of the pressure and/or the density of the fluid medium; wherein the surface coupled to the fluid medium is coated in a corrosion resistant polymer layer. Preferably the corrosion resistant polymer layer is formed from parylene. | 10-20-2011 |
20100237855 | Protective system for a multiple channel transformer probe - The invention provides a transformer probe for sensing movement of a body of magnetic material, having multiple output channels wherein the output in each output channel is substantially unaffected by faults in other output channels. The transformer probe comprises a magnetically energisable pole piece, a sensing circuit comprising an electrical circuit having a portion, remote from the pole piece, which forms first and second transformer primary coils, a first output circuit comprising a first transformer secondary coil, inductively coupled to the first primary coil via a first transformer core, and terminated by a first load resistance, and means for measuring an output signal from the secondary circuit, a second output circuit comprising a second transformer secondary coil, inductively coupled to the second primary coil via a second transformer core and terminated by a second load resistance and means for measuring an output signal from the second secondary coil, and an inductive coupling, or resistive electrical component, connected across each primary coil, having an impedance within the sensing circuit such that a change from a normal circuit condition to an open circuit condition within the first or second output circuit does not significantly affect the voltage across the first and second primary coils. | 09-23-2010 |
20100123540 | Contactless connector for use in a gas turbine - The invention provides a system for monitoring an operational parameter of a gas turbine, including a magnetic coupling between a signal source and a data output terminal. The magnetic coupling comprises a primary coil electrically connected to the signal source and wound around a first magnetic core section, and a secondary coil electrically connected to the output terminal but electrically isolated from the primary coil and wound around a second magnetic core section, wherein the first and second magnetic core sections are physically separated from one another. | 05-20-2010 |
20090309577 | High temperature speed sensor - A gas turbine shaft speed sensor including a sensing coil comprised of a central conducting wire, the sensor and conducting wire is surrounded by a layer of mineral insulator and the mineral insulator is surrounded by a metallic, non magnetic, sheath. A sensing coil formed with this construction allows the high operating temperatures and is robust. | 12-17-2009 |
20090189598 | Speed sensor - A probe for sensing the movement of a body of magnetic material comprises a magnetically energisable pole piece and a plurality of electrically conductive circuits, coupled to the magnetic pole piece, such that a change in magnetic flux in the pole piece caused by movement of the body relative to the pole piece induces a voltage in each of the circuits. The electrically conductive circuits are wound around in a symmetrical fashion each other such that in the vicinity of the magnetic pole piece each circuit experiences substantially the same change in magnetic flux. A probe of this type provides a plurality of substantially identical output signals and is easy to manufacture and replicate. | 07-30-2009 |
20090177434 | Method and apparatus for monitoring the rotational speed of the shaft of a gas turbine - A method (and corresponding apparatus) for monitoring the rotational speed of the shaft of a gas turbine having a number of spaced blades on or rotating with the shaft. The invention compensates for the errors which arise from the relative movement of turbine blade tips by deriving a correction factor for each blade and continually updating that correction factor. | 07-09-2009 |
20090177433 | Method and apparatus for monitoring the rotational speed of shaft - Method and apparatus for monitoring the rotational speed of a shaft, in particular a shaft having a number of spaced features on or rotating with the shaft. Preferred embodiments of the invention are concerned with methods and apparatuses for processing signals in order to calculate, with high accuracy and a fast response time, the rotational speed of a gas turbine shaft. The invention recognises that it is possible to accurately measure speed between two eddy current sensors ( | 07-09-2009 |
20090177363 | Method and apparatus for monitoring gas turbine blades - A method (and corresponding apparatus) for monitoring gas turbine blades. The output from an eddy current sensor monitoring the movement of turbine blades past the sensor is processed to determine when the signal train from the sensor omits a signal or pulse corresponding to one of the shaft's full complement of blades. The signal processor compares sensed blade periods with average blade periods. | 07-09-2009 |
20090154522 | Temperature sensor and method for measuring temperature - 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. | 06-18-2009 |
20090141772 | Thermocouple head unit - A mounting terminal head of a thermocouple head unit having a metal casing for an end of a thermocouple wire, and thermocouple signal terminals | 06-04-2009 |