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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8138756 | Microfiber magnetometer A magnetometer includes a tapered microfiber having a curved portion, an excitation laser in optical communication with the tapered microfiber, and a nanocrystal attached to the curved portion of the tapered microfiber. Laser light emitted from the excitation laser ... | 03/20/2012 |
| 8120355 | Magnetic anomaly detector A magnetic anomaly detector includes a magnetically active device which produces analog signals in response to magnetic fields. The analog signals are time quantized and then discrete-time differentiated. The differentiated signals are applied to a low-pass filter. ... | 02/21/2012 |
| 8106653 | Optical-magnetic Kerr effect waveform testing System and methods are provided for optical-magnetic Kerr effect signal analysis. In one aspect, a test fixture is supplied having parallel conductive lines, with an input of a first line adjacent a resistively loaded output of a second line and a resistively loaded... | 01/31/2012 |
| 8058869 | Fiber laser magnetic field sensor The device includes two supports and a primary conductive strip. The primary conductive strip includes a neutral surface, a first side, and a second side. The primary conductive strip is connected one of directly and indirectly on the first side to the two supports ... | 11/15/2011 |
| 7821259 | Device and method for examining magnetic characteristics of objects The invention concerns a device and a method for examining magnetic properties of objects, in particular of sheet material such as for example bank notes. Therein the invention proceeds from a device and a method for examining magnetic properties of objects with a m... | 10/26/2010 |
| 7656154 | Magnetic field measurement system and optical pumping magnetometer Provided is a highly accurate optical pumping magnetometer, in which a static magnetic field and an oscillating field to be applied to a vapor cell are stabilized. To this end, the optical pumping magnetometer includes: Helmholtz coils for applying a constant static... | 02/02/2010 |
| 7501816 | Flaw detection method and flaw detection apparatus A flaw detection apparatus includes a coil for producing an alternating-current magnetic field for flowing eddy currents in a magnetic material; a magneto-optical element disposed at the center of an inner peripheral portion of the coil and having a reflective film ... | 03/10/2009 |
| 7417425 | Continuous observation apparatus and method of magnetic flux distribution A continuous observation apparatus of magnetic flux distribution in which a long sample containing a superconducting material or magnetic material is transferred to an observation position and magnetic flux is observed sequentially at each of certain areas along a l... | 08/26/2008 |
| 7385393 | Magnetic field measuring apparatus capable of measuring at high spatial resolution A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than tha... | 06/10/2008 |
| 7379523 | Electromagnetic counter with built-in illumination means An electromagnetic counter includes an electromagnetic counting mechanism in a frame, a plurality of number wheels at least one of which is configured to rotate through a predetermined angle in response to rotation of an electromagnetically motivated anchor, wherein... | 05/27/2008 |
| 7366383 | Optical fiber and method of manufacturing the optical fiber An optical fiber 1 comprising a glass portion 2 having a core 2a and a cladding 2b, and one or more covering layers 3 formed around the glass portion 2, in which an arrangement form of the covering layer 3 | 04/29/2008 |
| 7365533 | Magneto-optic remote sensor for angular rotation, linear displacements, and evaluation of surface deformations A system and method to detect angular rotation, linear displacement and/or surface deformations is presented. The method is based on the ability of a linear polarized light to interact with magnetic materials and to change its polarization angle due to Faraday effec... | 04/29/2008 |
| 7352172 | Relative position detecting apparatus using magneto-resistors The device according to the present invention comprises at least one magnetic field generating element, at least one magneto-resistor and at least one resistance-to-current converter generating a current signal dependent on the resistance value of said at least one ... | 04/01/2008 |
| 7352607 | Non-volatile switching and memory devices using vertical nanotubes Non-volatile and radiation-hard switching and memory devices using vertical nano-tubes and reversibly held in state by van der Waals' forces and methods of fabricating the devices. Methods of sensing the state of the devices include measuring capacitance, and tunnel... | 04/01/2008 |
| 7339764 | Method of designing patterned magnetic recording medium and patterned magnetic recording medium A method of designing a patterned magnetic recording medium including a magnetic film with perpendicular magnetic anisotropy which is patterned into dots form includes steps of setting values to dot pattern periods Px and Py, a thickness “tâ€... | 03/04/2008 |
| 7339295 | Electric machine with improved temperature monitoring system An electric machine includes a heat-generating machine component, and a temperature radiation detector for contactless determination and/or measurement of heat radiating from the machine component for ascertaining an absolute and current temperature of the machine c... | 03/04/2008 |
| 7340114 | Optical waveguide device and optical modulator An optical waveguide device includes a substrate having an electro-optical effect, an optical waveguide formed on the substrate, an electrode provided for the optical waveguide, a monitoring optical waveguide for guiding part of light outputted from the optical wave... | 03/04/2008 |
| 7336062 | Optically measuring electric field intensities An apparatus includes an optical resonator and a passive optical device. The optical resonator has first and second optical reflectors and an optical cavity interposed between the reflectors. The optical resonator includes an electro-optically responsive material. O... | 02/26/2008 |
| 7336068 | Field device and method for calibrating a field device The invention relates to a field device and a method for calibrating a field device, having a field device electronics and a sensor unit for process measurements, wherein the field device electronics receives measurement signals of the sensor unit, wherein the field... | 02/26/2008 |
| 7336515 | Method of manipulating a quantum system comprising a magnetic moment A method for manipulating a quantum system comprises at least one mobile charge carrier with a magnetic moment. The method comprises the steps or acts of applying magnetic field to the charge carrier. The magnetic is spatially non-homogeneous. The method also compri... | 02/26/2008 |
| 7286228 | Method and apparatus for measuring circularly polarized rotating electromagnetic wave using magnetic field A method and apparatus for measuring a circularly polarized rotating electromagnetic wave using a magnetic field are provided. The method and apparatus are used to measure properties of a circularly polarized rotating electromagnetic wave occurring in nature by usin... | 10/23/2007 |
| 7280078 | Sensor for detecting high frequency signals A sensor that senses incident RF signals is provided. The sensor is capable of sensing signals in the Gigahertz (GHz) and Terahertz (THz) range. The sensor may utilize one or more cantilevers, an interferometer, or may be formed in a box-type configuration. ... | 10/09/2007 |
| 7265845 | Surface corrugation enhanced magneto-optical indicator film A method of enhancing the conversion of magnetic field intensity and spatial data to optical data utilizes surface plasmon resonance combined with corrugated optical gratings of several types. Appropriate materials and methods for producing and applying said corruga... | 09/04/2007 |
| 7262597 | Hybrid squid microscope with magnetic flux-guide for high resolution magnetic and current imaging by direct magnetic field sensing A scanning microscope for high resolution current imaging by direct magnetic field sensing of a sample maintained in an ambient environment. The scanning microscope uses a magnetic sensor such as a SQUID and a fiber probe magnetically coupled between the SQUID senso... | 08/28/2007 |
| 7202667 | Anisotropic nanoparticle amplification of magnetic resonance signals The reversible transverse susceptibility of magnetic nanoparticles is used to achieve magnetic flux amplification in magnetic resonance settings. Nanoparticles having substantially uniaxial or unidirectional magnetic anisotropy and a reversible transverse susceptibi... | 04/10/2007 |
| 7200344 | Receiver and method for a multichannel optical communication system A method and system for transmitting information in a wavelength division multiplex (WDM) or other suitable multichannel optical communication system includes receiving a multichannel signal having a symbol rate and comprising a plurality of non-intensity modulated ... | 04/03/2007 |
| 7199498 | Electrical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of same Electromechanical systems utilizing suspended conducting nanometer-scale beams are provided and may be used in applications, such as, motors, generators, pumps, fans, compressors, propulsion systems, transmitters, receivers, heat engines, heat pumps, magnetic field ... | 04/03/2007 |
| 7196450 | Electromechanical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of same Electromechanical systems utilizing suspended conducting nanometer-scale beams are provided and may be used in applications, such as, motors, generators, pumps, fans, compressors, propulsion systems, transmitters, receivers, heat engines, heat pumps, magnetic field ... | 03/27/2007 |
| 7183765 | Micro-position sensor using faraday effect A micro-position sensor and sensing system using the Faraday Effect. The sensor uses a permanent magnet to provide a magnetic field, and a magneto-optic material positioned in the magnetic field for rotating the plane of polarization of polarized light transmitted t... | 02/27/2007 |
| 7176672 | DC current sensor A DC current sensor has a core having a magnetically permeable material. A permeability measurement winding is formed around at least a portion of the core. The core is placed within a magnetic field of a conductor such that measurement of a permeability of the core... | 02/13/2007 |
| 7173417 | Eddy current sensor with concentric confocal distance sensor A metrology instrument includes an eddy current sensor that is mounted to and concentric with a confocal distance sensor. By measuring the precise vertical placement of the eddy current probe with respect to the surface of the sample using the confocal distance sens... | 02/06/2007 |
| 7166997 | Complex transverse AC magneto-optic susceptometer for determination of volume and anisotropy field distribution in recording media A method and apparatus for determining volume and anisotropy field distribution of thin film granular material includes the use of a magneto-optic probe, a lock-in amplifier, and a computer. The magneto-optic probe utilizes the Kerr effect in order to determine the ... | 01/23/2007 |
| 7166162 | Terbium type paramagnetic garnet single crystal and magneto-optical device A terbium type paramagnetic garnet single crystal having a high Faraday effect and a high light transmission factor even in a visible range, as well as a high Verdet constant. A magneto-optical device containing the terbium type paramagnetic garnet single crystal. T... | 01/23/2007 |
| 7154081 | Composite structures, such as coated wiring assemblies, having integral fiber optic-based condition detectors and systems which employ the same Integral fiber optic-based condition sensors detect conditions of a composite structure, e.g., a coated wire assembly so as to detect damage or conditions that may damage the same. Preferably, at least one optical fiber sensor having a plurality of Bragg gratings wr... | 12/26/2006 |
| 7141968 | Integrated sensor system for measuring electric and/or magnetic field vector components A compact sensor system integrates electric and/or magnetic field sensors to accurately measure, with a high level of sensitivity, one or more electric and magnetic vector components of fields. The electric and magnetic field data can be utilized separately or combi... | 11/28/2006 |
| 7135830 | System and method for identifying operational parameters of a motor A system and method for establishing estimated values of electrical parameters of a motor. The electrical parameters may be established from stator resistance data and motor data obtained at a single load on the motor. The electrical parameters also may be establish... | 11/14/2006 |
| 7129510 | Optical sensors An optical sensor comprises at least one bundle comprising a plurality of optical fibers and a plurality of separate fluid-tight longitudinally extending ducts; and fluid connectors for introducing fluids selectively into at least some of said ducts. Test cells are ... | 10/31/2006 |
| 7110216 | Magnetic thin film sensor based on the extraordinary hall effect A magnetic field sensor, including an insulating substrate and a conductive thin film deposited on the substrate. The thin film consists of a material having an extraordinary Hall coefficient, the thin film also has a resistivity and a film thickness no greater than... | 09/19/2006 |
| 7106919 | Magneto-optical sensing employing phase-shifted transmission bragg gratings A new fiber-optic magnetic field or current sensor design can increase the accuracy, resolution and environmental stability of the subject sensor. The design is based on phase-shifted fiber or planar waveguide Bragg grating, in which a Fabry-Perot resonator is forme... | 09/12/2006 |
| 7098560 | Flux probe for electric generator A flux probe (100) for measuring the rotor flux of an electric generator (10). The probe (100) is affixed to a probe carrier (102) and held within a stator coil slot (62) by affixing the carrier (102) to two opposing grooves... | 08/29/2006 |
