Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7969165 | Device for determining the distance between a rotor blade and a wall of a turbine engine surrounding the rotor blade A device for determining distance between a rotor blade and a wall of a gas turbine surrounding the rotor blade is provided. A waveguide guides and emits electromagnetic waves of at least one frequency in the direction of the rotor blade through a waveguide opening ... | 06/28/2011 |
| 7884620 | Sensor for measuring moisture and salinity A sensor for measuring the moisture and salinity of a material is disclosed herein. The sensor preferably includes a soil moisture circuit, a soil salinity circuit and a probe structure. The soil moisture circuit includes a high frequency oscillator, a voltage meter... | 02/08/2011 |
| 7859271 | Methods for propagating a non sinusoidal signal without distortion in dispersive lossy media Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation Vin | 12/28/2010 |
| 7843199 | Level meter A level meter for measuring the fill level of a medium in a vessel, includes a reference container that can be connected to the vessel in a manner whereby the level in the reference container is identical to that in the vessel. The reference container is provided wi... | 11/30/2010 |
| 7825669 | Microwave position sensing for a turbo machine A microwave position sensing system includes a plurality of target components that each move between multiple positions. A microwave generator produces a microwave frequency signal. A divider receives the microwave frequency signal and splits the microwave frequency... | 11/02/2010 |
| 7750647 | Position detecting device with a microwave antenna arrangement and a method for the manufacture thereof A position detecting device serves for finding the distance between a specimen arranged in a conductive structure and a microwave antenna arrangement of the position detecting device, produced by an inventive method, on the basis of microwaves. The microwave antenna... | 07/06/2010 |
| 7710125 | Independent reference pulse generation In fill-level measuring devices according to the pulse-transit-time method, a reflection that is generated internally in a microwave module is used as a reference for transit time measuring. For generating the reference pulse, the microwave module comprises its own ... | 05/04/2010 |
| 7705610 | Apparatuses and methods for nondestructive microwave measurement of dry and wet film thickness Wet and dry film thickness can be measured non-invasively on structures, such as surfaces associated with vessels, aircraft and buildings, using calibrated microwave sensors. The film is measured by directing microwave energy toward the film. The microwave energy pa... | 04/27/2010 |
| 7659729 | Method and device for measuring width direction end position of stripe body, and method and device for measuring width direction center position of stripe body A microwave sending antenna 3R and a microwave receiving antenna 4R are provided to a right-side furnace wall 1R, and the system is devised so that the microwaves emitted from the microwave sending antenna 3R are reflected by the right-si... | 02/09/2010 |
| 7616009 | Method for microwave measurement, measuring device and oscillator An object to be measured is measured using microwave radiation. Oscillation energy is generated by means of a feedback coupled active unit. The solution involves generating resonance into at least one oscillator, each oscillator comprising at least one open resonato... | 11/10/2009 |
| 7548072 | Potential separation for filling level radar Both in potential separation in the microwave path, and in potential separation directly between the two-wire loop and the output circuit, the quality of signal transmission may be negatively affected. A filling level radar device with potential separation within th... | 06/16/2009 |
| 7535237 | Sensor for measuring moisture and salinity A sensor for measuring the moisture and salinity of a material is disclosed herein. The sensor preferably includes a soil moisture circuit, a soil salinity circuit and a probe structure. The soil moisture circuit includes a high frequency oscillator, a voltage meter... | 05/19/2009 |
| 7511513 | System and method for detecting the proximity of a body A system and method for sensing the proximity of an electronic device, in particular, a radio frequency mobile communication device such as a mobile telephone, wireless modem equipped portable computer, or the like to a body employs an antenna capable of altering it... | 03/31/2009 |
| 7492165 | Position detecting device with a microwave antenna arrangement A position detecting device finds the position of a specimen arranged in a conductive structure on the basis of microwaves and includes an electrical circuit for the production and/or reception of the microwaves and a microwave antenna arrangement for emitting and/o... | 02/17/2009 |
| 7482819 | Power tool with measurement of a penetration depth of a working tool A power tool (1) for driving a working tool (3) that penetrates at least axially into a to-be-machined material (2), and including a signal processor (6, 6′), and a transducer (5) which is suitable for exciting and detecting a hi... | 01/27/2009 |
| 7482820 | Sensor for measuring moisture and salinity A sensor for measuring the moisture and salinity of a material is disclosed herein. The sensor preferably includes a soil moisture circuit, a soil salinity circuit and a probe structure. The soil moisture circuit includes a high frequency oscillator, a voltage meter... | 01/27/2009 |
| 7479787 | Current regulator for loop powered time of flight and level measurement systems A protection circuit for a current loop powered level measurement or time of flight ranging apparatus. The protection circuit includes one or more Zener diodes, a leakage current detector circuit and a compensating current circuit. The leakage current detector circu... | 01/20/2009 |
| 7477059 | Method to determine the contents level of a first fluid in a container and to determine a presence of a second fluid below the first fluid and level measurement apparatus to execute said method A level measurement device to measure the fill level of a fluid in a container, and a method to determine the contents level of a first fluid in a container and a presence of a second fluid below the first fluid. Microwave signals generated in the level measurement ... | 01/13/2009 |
| 7466143 | Clearance measurement systems and methods of operation A method is provided and includes exciting a sensor with an incident signal and generating a reflected signal by reflecting the incident signal from the sensor. The incident signal and the reflected signal interfere to form a standing wave. The method also includes ... | 12/16/2008 |
| 7466144 | Microwave measurement system for piston displacement A microwave measurement system is utilized for the determination of displacement of a piston in a fluid filled cylindrical structure. The piston plus cylindrical encasement of the hydraulic system is modeled as a uniform cylindrical waveguide terminated in a metal p... | 12/16/2008 |
| 7439749 | Non-destructive testing of physical characteristics of composite structures A method for detecting an anomaly in a composite material comprising directing two transmitted electromagnetic wave signals orthogonally polarized with respect to each other from a probe to the composite material, wherein the probe and composite material are positio... | 10/21/2008 |
| 7423435 | Method and apparatus for measuring grammage A grammage measuring apparatus including a dielectric resonator which is arranged only at one side surface of a sample; a shielding container with which the dielectric resonator is substantially covered except for a sample measuring surface; a microwave excitation d... | 09/09/2008 |
| 7408364 | Sensor for measuring moisture and salinity A sensor for measuring the moisture and salinity of a material is disclosed herein. The sensor preferably includes a soil moisture circuit, a soil salinity circuit and a probe structure. The soil moisture circuit includes a high frequency oscillator, a voltage meter... | 08/05/2008 |
| 7379016 | Carrier phase detection system for radar sensors A pulse detection system for expanded time radar, laser and TDR sensors detects specific cycles within bursts of cycles. A sensor transmits and receives short bursts of RF cycles. A transmit pulse detector triggers on a selected cycle of the detected transmit burst ... | 05/27/2008 |
| 7372397 | Energy storage in a radar level gauge A radar level gauge using microwaves for measuring a level of a surface of a product in a container, comprising a microwave unit, processing circuitry connected to said microwave unit, an interface for connecting said radar level gauge externally thereof, and a powe... | 05/13/2008 |
| 7367231 | Flexible guided wave level meter probe The invention is a level meter having a flexible probe. The flexible probe includes a flexible conductor and at least one flexible band shield member disposed in a substantially vertically parallel relationship with the conductor, where the conductor and the shield ... | 05/06/2008 |
| 7355548 | Processing of tank signal in radar level gauge system A method and a system for processing a reflected microwave signal generated by a radar level gauge system arranged to transmit microwaves towards the material in the tank, and receive a reflection of said microwave signal as a tank signal. The tank signal is process... | 04/08/2008 |
| 7349291 | Pulse-echo ranging system A method and apparatus for controlling pulses in a pulse-echo level measurement or time-of-flight ranging system. The apparatus comprises a controller, a transducer, and an energy storage device. The energy storage device is operatively coupled to the transducer thr... | 03/25/2008 |
| 7348897 | Apparatus for transmitting position detection signal of multi-shaft motor An apparatus for transmitting a position detection signal of a multi-shaft motor whereby a parallel-form detection signal that is output from position-detecting devices disposed on each of a plurality of motors and used for indicating a motor rotation position can b... | 03/25/2008 |
| 7339382 | Apparatuses and methods for nondestructive microwave measurement of dry and wet film thickness Wet and dry film thickness can be measured non-invasively on structures, such as surfaces associated with vessels, aircraft and buildings, using calibrated microwave sensors. The film is measured by directing microwave energy toward the film. The microwave energy pa... | 03/04/2008 |
| 7334451 | Level meter threshold detection system The invention is a method to detect a weak interface signal in a guided wave level measurement device. The device includes a waveguide, a signal generator and a signal receiver, the signal generator and signal receiver being operationally connected to the waveguide.... | 02/26/2008 |
| 7336087 | Circuit board test device comprising contact needles which are driven in diagonally protruding manner The invention relates to printed circuit board test devices (1) comprising a support (4) receiving a circuit board (5) by said board's edges, said board being designed to be fitted as needed with electrical or electronic components (20), ... | 02/26/2008 |
| 7333897 | Method and system for identifying material composition based upon polarization trajectories A system and method for determining a most likely material composition of an object. At least one respective stored radiation polarization transformation is stored for at least one material composition at a plurality of wavelengths. A transmitted electromagnetic sig... | 02/19/2008 |
| 7322233 | Level meter with a waveguide and a wave adapter The invention relates to a level meter with a waveguide for guiding an electromagnetic wave, such that the waveguide is designed as a hollow conductor and has a forward terminal section; with a wave adapter of a dielectrical material, such that the wave adapter has ... | 01/29/2008 |
| 7323798 | Microwave displacement measurement system for an electrodynamic direct drive An electrodynamic direct drive includes an armature that travels within a housing and a drive system for moving armature in relation to housing. The drive system has two drive means, that are moved in relation to each other in the form of a coil system with at least... | 01/29/2008 |
| 7308825 | Tank gauging system A tank gauging system for sensing product parameters of a product contained in a tank is disclosed. The system comprises a microwave-based level gauging unit and a temperature gauging unit. A controller of the system includes an external interface adapted to enable ... | 12/18/2007 |
| 7286213 | Processes and devices enabling the entry of a target into a zone to be detected A process to detect the entry of a target into a zone, such process wherein it has the following stages: an illuminating beam is projected in the direction of the target by at least one source, the beam reflected o... | 10/23/2007 |
| 7276914 | System and method for guided TDR/TDT computerized tomography A system for detecting a defect or discontinuity in media or at an interface of the media includes a signal generator; a transmission path coupled to the signal generator, wherein the transmission path is arranged along or through the media; a detection circuit for ... | 10/02/2007 |
| 7265558 | Radar level gauge using elliptically or circularly polarized waves A radar level gauge (RLG) is provided for determining a filling level of a filling material contained in a container by transmitting and receiving elliptically or circularly polarized waves. The RLG comprises: a feeding circuitry for feeding and receiving two essent... | 09/04/2007 |
| 7263447 | Method and apparatus for electron density measurement and verifying process status An equipment status monitoring system and method of operating thereof is described. The equipment status monitoring system includes at least one microwave mirror in a plasma processing chamber forming a multi-modal resonator. A power source is coupled to a mirror an... | 08/28/2007 |
