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| Number | Title | Issue Date |
| 8117909 | Icing resistant sensor port for a fuel tank environment A system for an icing resistant sensor port assembly includes shaped and patterned features for resisting the formation and propagation of ice around a sensor port, such as for a pressure sensor in an aircraft fuel tank. Water may be present in fuel tanks due to con... | 02/21/2012 |
| 8037750 | Impending icing probe with thermal isolation pedestal In an icing condition detection system, a circuit provides an output representing impending icing conditions as a function of power consumption of a single element detector. A thermal isolation pedestal includes a detector support end that supports the single elemen... | 10/18/2011 |
| 7984647 | Detecting ice particles Systems and methods for detecting ice particle accumulation is disclosed herein. In one exemplary implementation, a method for detecting ice is described in which a parameter within an interior volume of a heated conduit is measured. The method also includes detecti... | 07/26/2011 |
| 7441453 | System for virtual frost sensor A system for a virtual frost sensor is disclosed including a method for operating the virtual frost sensor. The method includes determining a first temperature indicative of a fluid upstream of the component and determining a second temperature indicative of a fluid... | 10/28/2008 |
| 7418347 | Method of determining the risk of ice deposition due to precipitation and apparatus for exercising the method The invention relates to a method and an apparatus for determining the risk of ice deposition due to precipitation. According to the invention the measurements of precipitation known so far are combined with measurements of the actual amount of ice deposited from th... | 08/26/2008 |
| 7370525 | Inflight ice detection system A dual channel inflight ice detection system to detect ice accretion on an aircraft surface by illuminating an ice collecting surface mounted on an aircraft with linear polarized light. The backscattered light is acquired in two light conductors one with polarizatio... | 05/13/2008 |
| 7358858 | Road-ice detecting sensor, method for installing same, and road-ice detecting method A road-ice detecting sensor includes: a temperature sensing member of T shape made of a highly heat conductive metal, having a temperature sensor to be grounded onto a road and a fin part erected from this temperature sensor; an optical fiber having an FBG bonded on... | 04/15/2008 |
| 7334939 | Method and device for verifying a temperature value at a destination altitude of an aircraft The device comprises a means for measuring a dynamic temperature on the outside of the aircraft, a means for determining a static temperature around the aircraft, using said dynamic temperature, a means for determining, using said static temperature and a thermodyna... | 02/26/2008 |
| 7328605 | Ice-processing device An ice-processing device is configured to test a consequence of ice on an aircraft engine component by simulating an effect on the ice upstream of the component. ... | 02/12/2008 |
| 7312713 | Methods and systems for detection of ice formation on surfaces A system for detecting ice formation on metal, painted metal and other material surfaces can include a transparent window having an exterior surface upon which ice can form; a light source and optics configured and arranged to illuminate the exterior surface of the ... | 12/25/2007 |
| 7292407 | Disk drive with support structure for disk-vibration capacitive sensors A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surf... | 11/06/2007 |
| 7253742 | Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a spatial array of pressure sensors disposed at different axial locations x1. . . xN along the pipe. Each of the pressure sensors provides ... | 08/07/2007 |
| 7211771 | De-icing system for traffic signals A circuit is disclosed for detecting and eliminating the buildup of snow and/or ice on the viewable face of an LED traffic signal lens. The circuit measures the ambient temperature within the LED signal, and when the temperature falls to a level where snow and/or ic... | 05/01/2007 |
| 7205780 | Multi-frequency capacitive measurement device and a method of operating the same A method and a system is provided that includes a multifrequency generator supplying signals of at least three different frequencies to an electrode assembly, the capacitance of which is detected for a plurality of different frequency points. In this way, the capaci... | 04/17/2007 |
| 7191643 | Sensor system to distinguish frozen and non-frozen liquid particulates A sensor system comprises a first sensor, a second sensor, and circuitry. The first sensor collects non-frozen liquid with a first collection efficiency, but does not collect frozen liquid. The second sensor collects non-frozen liquid with a second collection effici... | 03/20/2007 |
| 7183779 | Soil probe device and method of making same A device for measuring one or more different properties of soil or a soil-related substance is provided. The device includes a probe that is inserted into the soil or soil-related substance. The probe includes a tip. The tip is electrically insulative and defines ap... | 02/27/2007 |
| 7175136 | Method and apparatus for detecting conditions conducive to ice formation A method for detecting ambient conditions conducive to ice formation. The method includes the steps of measuring at least one parameter selected from a group of parameters consisting of a static pressure, a total pressure, a total temperature, a dew point temperatur... | 02/13/2007 |
| 7151487 | Method for measuring GPS air sensitivity and mobile terminal having function of measuring GPS air sensitivity A method for measuring an air sensitivity of a global positioning system (GPS) signal in a mobile terminal. A GPS signal value is obtained in the mobile terminal. The air sensitivity of the GPS signal value based on a reference GPS signal value is stored in a memory... | 12/19/2006 |
| 7104502 | Ice detector for improved ice detection at near freezing condition An ice detector for providing a signal indicating ice formation includes a probe protruding into an airflow. The probe extends into the airflow from a strut. The strut has one or more features which allow the probe to accrete ice at a higher temperature than would c... | 09/12/2006 |
| 7014357 | Thermal icing conditions detector A sensor for detecting icing conditions in an airstream includes a flow housing mounted on an aircraft and in which one or more probes are mounted. At least one of the probes subjected to impingement of the airstream and liquid moisture droplets in such airstream. T... | 03/21/2006 |
| 6995572 | Sensor and method for detecting a superstrate Method and apparatus are provided for determining a superstrate on or near a sensor, e.g., for detecting the presence of an ice superstrate on an airplane wing or a road. In one preferred embodiment, multiple measurement cells are disposed along a transmission line.... | 02/07/2006 |
| 6868721 | Morphogenetic modelling of in-flight icing The accretion of ice on an aerodynamic surface is predicted by identifying predetermined atmospheric parameters relevant to ice formation in a particular fluid environment. Then the behaviour of individual fluid elements is simulated based on the identified paramete... | 03/22/2005 |
| 6847903 | Liquid water content measurement apparatus and method Ice accretion on a probe is detected by determining the change of frequency of a vibrating type ice detector or sensor as ice starts to build up. The rate of change of frequency is determined and is combined with parameters including air velocity and air temperature... | 01/25/2005 |
| 6758091 | Method and an apparatus for measuring icing An apparatus and a method for local measurement of an icing factor for atmospheric air containing supercooled water, and wherein the apparatus comprises at least one surface element made of a material suitable for ice in atmospheric air to freeze on, and said surfac... | 07/06/2004 |
| 6759962 | Inflight ice detector to distinguish supercooled large droplet (SLD) icing An ice detector has a pair of probes, each of which is used for determining the accretion of ice thereon. One of the probes in the assembly is configured so the smaller droplets of supercoooled water are inertially separated and flow away from the one probe. The ice... | 07/06/2004 |
| 6568270 | Ultrasonic sensor self test for integrity/performance verification A contaminant sensor is provided which has an ultrasonic guided wave transducer that is bonded to a wall in which the ultrasonic energy is transmitted. A detector reflector is provided at a selected distance from the transducer, which will reflect signals... | 05/27/2003 |
| 6560551 | Liquid water content measurement apparatus and method Ice accretion on a probe is detected by determining the change of frequency of a vibrating type ice detector or sensor as ice starts to build up. The rate of change of frequency is determined and is combined with parameters including air velocity and air ... | 05/06/2003 |
| 6543298 | Method of reducing total temperature errors and multi-function probe implementing same A method of generating, for an aircraft, a total air temperature compensated for recovery or deicing heater error includes measuring a total air temperature with a total air temperature probe. A local angle of attack for the total air temperature probe is... | 04/08/2003 |
| 6430996 | Probe and integrated ice detection and air data system An integrated air data probe capable of measuring pressure, temperature, relative humidity, turbulence, heading, air speed, the presence of ice, and other relevant measurements for use in building a real time map of the aircraft flying conditions. The pro... | 08/13/2002 |
| 6425286 | Electro-optic ice detection device The present invention is an optical ice detection probe capable of detecting the presence, thickness and continued buildup of ice. The invention works by attaching the probe to the external surface of an airplane such as the wing, fuselage or empannage. T... | 07/30/2002 |
| 6378377 | Acoustic reflector attachment compatible with native aircraft structure An ultrasonic ice detector that can be mounted directly to the skin of an aircraft includes a transducer that is coupled to the interior surface of the skin, and transmits acoustic vibrational energy through the skin. A reflector bar having a reflector su... | 04/30/2002 |
| 6377207 | Passive polarimetric microwave radiometer for detecting aircraft icing conditions The passive polarimetric microwave radiometer is a simple and low cost radiometric icing detection system that operates over a suitable set of frequency bands in the millimeter wave region of the spectrum to provide useful signatures for detecting aircraf... | 04/23/2002 |
| 6313645 | Method of determining the volumetric proportion of liquid water and the density of snow and a device for carrying out the method In a method and apparatus for determining the volumetric proportion of water in snow and the density of snow, a probe consisting of at least three parallel, but differently spaced, electrical conductors is installed in an area so that the probe is surroun... | 11/06/2001 |
| 6311503 | Methods and apparatus for detecting ice readiness Accurate sensing of ice readiness in an ice maker is accomplished using, as an ice readiness sensor, a capacitance bridge circuit having a first capacitor connected as a first bridge arm a second capacitor connected as a second bridge arm, a tunable capac... | 11/06/2001 |
| 6239601 | Thickness measurement device for ice, or ice mixed with water or other liquid A device and method are provided for determining the thickness of a layer of solid ice, a mixture of ice and water, or a mixture of ice and other liquid, accumulated on the outer surface of an object. First and second total impedance sensors are operated ... | 05/29/2001 |
| 6140942 | Aircraft surface contamination sensing system using control surface hinge moment measurements A method and system for sensing surface contamination on an aircraft having a control surface. A control element including the control surface is connected to the aircraft by a hinge. The method and system sense a control surface hinge moment about a line... | 10/31/2000 |
| 6057769 | Intelligent alarm system with snow sensor The intelligent alarm system of the present invention provides a reliable, low cost system for alerting a user to the presence of snow outside of a building. The system includes a sensor and an intelligent alarm clock for use inside a building or dwelling... | 05/02/2000 |
| 6052056 | Substance detection system and method A modulated light source (31) transmits light pulses through an optical channel (20) to an optical sensor (10) remotely located from the cockpit and mounted proximate an aerodynamic surface (14) of an aircraft. In the absence of ice a baseline amount of l... | 04/18/2000 |
| 5932983 | Wiper motor control A wiper motor control using a load sense resistor to monitor conditions confronting the wiper operation. The control can detect if the wiper is frozen to the window, moving too slowly, moving too quickly, etc. The power to the motor is then adjusted to ac... | 08/03/1999 |
| 5932806 | Contaminant detection system A contaminant detection system includes a transmitter for transmitting a guided wave through the skin at particular resonances, wherein each resonance point utilized will have propagation characteristics sensitive to a condition of interest. A contaminant... | 08/03/1999 |
