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Attitude change kalman filter measurement apparatus and method
A navigation system includes a Kalman filter to compensate for bias errors in inertial sensing elements. An observed pitch, roll or heading change is input to...
Methods for locating faults in aircraft branch conductors and determining
the distance to the faults
A method for isolating a fault in an aircraft circuit having a lead conductor and a plurality of branch conductors coupled to the lead conductor is disclosed....
System and method for coupling rectifiers of an exciter to the rotor of a
A system and method for electrically coupling windings of a main generator rotor to a plurality of DC sources on an exciter that each have respective ...
Provided are azeotrope-like compositions comprising pentafluoropropene (HFO-1225) and a fluid selected from the group consisting of 3,3,3-trifluoropropene...
Etch stop control for MEMS device formation
A microelectromechanical device is formed in a silicon semiconductor substrate. A metalization layer is formed on a glass wafer. A metal cap layer is then formed...
Contactless acceleration switch
A contactless acceleration switch detects a threshold acceleration value when a mass attached to a spring, moves towards a source, a drain, and a threshold...
Preparation of polyindanebisphenols and polymers derived therefrom
Novel polyindanebisphenols or PIBPs for the preparation of new and improved thermosetting polymers having the general formula of ##STR1## are provided. Also...
Method for regulating water concentration in a process stream
Provided is a method for regulating the concentration of water in the acid feed stream in a process for the production of HF by the reaction with a fluorine...
Process of making a dimensionally stable yarn
A product includes a dimensionally stable polymeric multifilament yarn having a decitex per fiber count DPF of at least 7.5 and a fatigue strength retention FR,...
Copper-containing sputtering targets, and methods of forming
copper-containing sputtering targets
The invention includes a sputtering target containing copper of a purity of at least about 99.999 wt. %, and at least one component selected from the group...
Method and system for entering data within a flight plan entry field
The present invention provides systems, apparatus and methods for entering data into a flight plan entry field which facilitates the display and editing of...
Resin transfer molding
A sensor placement algorithm uses process data to determine the optimal distribution of sensors in a distributed parameter manufacturing system. An automatic...
Methods and apparatus for determining an interferometric angle to a target
in body coordinates
A method for processing radar return data to determine a physical angle, in aircraft body coordinates to a target, is disclosed. The radar return data includes a...
Variable candela strobe
A selectable candela strobe alarm unit includes an energy storage circuit to reliably discharge a gas filled output device. The circuit includes a primary energy...
A filter includes a catalyst for oxidizing NOx to NO.sub.2 and an alkaline for adsorbing the NO.sub.2.
Elevated temperature oxidation protection coatings for titanium alloys and
methods of preparing the same
Oxidation protection of a titanium-based alloy is provided with improved fatigue properties by a titanium aluminide coating of between 2 to 12 microns by...
System and method using thermal image analysis for polygraph testing
Thermal image data of at least a region of a face of a person is provided. The thermal image data is transformed to blood flow rate data and may be used to...
Pressure regulating valve with adjustment features
There is provided an electromagnetic actuator which includes a coil disposed about a tube bearing a movable armature, the coil being electrically connectable to...
Apparatus and method for characterizing fiber crimps
Apparatus and method are described for measuring and controlling the crimp characteristics of a moving crimped tow. A light source illuminates a section of the...
Electrode design to extend sputter life of a ring laser gyroscope
A gas discharge tube such as a ring laser gyroscope includes a block. A cathode has an inwardly extending foot that engages the block. Additionally, or...
Programmable diffraction grating sensor
A programmable substance detector includes a light source, a sample cell, a programmable diffraction grating positioned to receive light from the light source...
Polarized display with wide-angle illumination
An apparatus and method for improving the brightness of a polarized display at viewing angles off of the vector normal to the display panel. The advantages of...
Methods and systems for utilizing a ring magnet for magnetic sensing
Methods and systems of utilizing a ring magnet for magnetic sensing applications thereof are disclosed. A magnetoresistive sensor device can be provided which is...
Polymer/substrate and polymer/polymer interfaces and methods of modeling
and forming same
A polymer/substrate and/or polymer/polymer interface is selected from candidate interfaces using a model that manipulates adhesive characteristics and strain...
Method for fixing the position of an end cap on a filter element, using
An apparatus for fixing the position of a metal end cap on a filter element includes a filter support, an inductive heater, and a drive system for moving the...
PDA diagnosis of thermostats
A system PDA-based on line diagnostics for automatically discovering a thermostat configuration, turning off normal controller delays, temporary overriding...
Multifunction vibration isolation strut
An isolation strut and strut support system for supporting a load and capable of operating in a first mode and a second mode comprising an air suspension spring...
Method for transforming words to unique numerical representation
Multiple words in a text are transformed to unique numerical representations for text mining applications. A web server receives the text, including multiple...
Data fusion of stationary array sensor and scanning sensor measurements
The present invention is directed to improving the accuracy with which a stationary array sensor provides cross directional measurements by providing an offset...
Synchronous and bi-directional variable frequency power conversion systems
A synchronous bi-directional active power conditioning system (11) suitable for wide variable frequency systems or active loads such as adjustable speed drives...
Methods and apparatus for circuit integration
An electronics cabinet is described as being suitable for use in an aircraft. Various embodiments of the cabinet include a databus that facilitates data...
Circuit and method for controlling current flow through a solenoid
A solenoid control circuit that includes two switching networks that are selectively opened and closed in a current limit cycle to control the magnitude of the...
Magnetoresistive based electronic switch
A magnetoresistive-based electronic switching apparatus and method. A housing having a first compartment contains switching electronics and a second compartment...
Barber pole structure for magnetoresistive sensors and method of forming
A method of making a magnetorestrictive sensor involves the deposition of a magnetorestrictive strip over a substrate, the deposition of an insulating layer over...
System and method for end turn retention on a high speed generator rotor
A new improved system and method for end turn retention for wires on a generator rotor for use in high speed applications such as in aircraft applications. The...
Ground based aircraft electrical power generation system having a voltage
regulator that selects from multiple...
A ground-based aircraft electrical power generation system for regulating the electrical power to an aircraft being serviced on the ground. The aircraft...
Low dielectric constant organic dielectrics based on cage-like structures
A low dielectric constant material has a first backbone with an aromatic moiety and a first reactive group, and a second backbone with an aromatic moiety and a...
Hydrophilic zeolite coating
A hydrophilic coating can be optionally corrosion resistant and/or microbial resistant for a substrate such as a heat exchanger. The coating is provided by a...
System and method for controlling an ultraviolet air treatment device for
return air duct applications
A system and method for controlling operation of an ultraviolet air treatment device including an ultraviolet lamp positioned to treat air within an air handling...
Methods of forming copper-containing sputtering targets
The invention includes a method of forming a sputtering target containing copper of a purity of at least about 99.999 wt. %, and at least one component selected...
Edge light source for a flat panel display or luminaire
A light source for a flat panel display or a luminare includes a tubular enclosure having a linear slit in which is positioned a lens structure which may be a...
Electro-hydraulic thrust reverser lock actuation system and method
An electro-hydraulic thrust reverser lock actuation system includes a hydraulic fluid source and a lock actuator assembly that is configured to selectively...
Condensing cycle with energy recovery augmentation
A system and method for providing conditioned air to an aircraft cabin. The system combines the benefits of a traditional 4 wheel condensing cycle and dual...
Shortened aircraft holding patterns
Methods, apparatus and program product are provided to obtain a shortened holding pattern exit path for an aircraft from its current position (CP) in or entering...
Electric start for a prime mover
A system and method for using reluctance torque or a combination of both reluctance and reaction torque components of an attached synchronous machine (102) to...
Negative rate snap-acting switch apparatus and method
A negative rate snap-acting switch apparatus and method is disclosed, which generally includes a plunger associated with an actuating lever, a stationary anchor,...
Ballistic fabric laminates
Woven fabric laminates having superior resistance to penetration by ballistic projectiles, assemblies thereof, and the method by which they are made. In one...
Flexible fabric from fibrous web and discontinuous domain matrix
A composite having a plurality of filaments arranged in a fibrous web that is held together in a unitary structure by a domain matrix. The domain matrix...
Lamination for specialty meat packaging
A multilayered packaging film having good antifog performance that is suitable for use in food packaging. The multilayered film comprises a nylon film having...
Gas port sealing for CVD/CVI furnace hearth plates
A method and apparatus for sealing gas ports in CVD/CVI furnaces and processes is disclosed. A fluid direction nozzle (160) is positioned between a top lip (101)...