Abstract: Apparatuses, methods and systems apparatus for sensing an orientation are disclosed. One apparatus includes an accelerometer, wherein the accelerometer generates a sensed acceleration of the accelerometer and a gyroscope, wherein the gyroscope generates a sensed orientation of the gyroscope. The apparatus further includes a first adaptive filter, the first adaptive filter operative to receive at least the sensed acceleration and the sensed orientation of the gyroscope, and generate a first orientation (Q) of the apparatus, a second adaptive filter, the second adaptive filter operative to receive at least the sensed acceleration and the sensed orientation of the gyroscope, and generate a second orientation (Q?) of the apparatus, wherein a tuning for the first adaptive filter is different than a tuning for the second adaptive filter.

Abstract: Apparatuses, methods and systems apparatus for low-power orientation estimation are disclosed. One apparatus includes an accelerometer, wherein the accelerometer generates a sensed acceleration of the accelerometer, a magnetic sensor, wherein the magnetic sensor generates a sensed magnetic field ambient to the magnetic sensor, a gyroscope, wherein the gyroscope generates a sensed orientation of the gyroscope, wherein at least one of the accelerometer, the magnetic sensor and the gyroscope operates at a first sampling rate. The apparatus further includes an adaptive filter. The adaptive filter operates at a second rate to generate an orientation estimate (Q) based on computational processing of at least the sensed acceleration, the sensed magnetic field, and the sensed orientation of the gyroscope, wherein the second rate is different than the first sampling rate.

Abstract: A solution for disinfecting an area using ultraviolet radiation is provided. The solution can include an enclosure including at least one ultraviolet transparent window and a set of ultraviolet radiation sources located adjacent to the at least one ultraviolet transparent window. The set of ultraviolet radiation sources can be configured to generate ultraviolet radiation directed through the at least one ultraviolet transparent window. An input unit can be located on the enclosure and configured to generate an electrical signal in response to pressure applied to the enclosure. A control unit can be configured to manage the ultraviolet radiation by monitoring the electrical signal generated by the input unit and controlling, based on the monitoring, the ultraviolet radiation generated by the set of ultraviolet radiation sources.

Abstract: A solution for packaging a two terminal device, such as a light emitting diode, is provided. In one embodiment, a method of packaging a two terminal device includes: patterning a metal sheet to include a plurality of openings; bonding at least one two terminal device to the metal sheet, wherein a first opening corresponds to a distance between a first contact and a second contact of the at least one two terminal device; and cutting the metal sheet around each of the least one two terminal device, wherein the metal sheet forms a first electrode to the first contact and a second electrode to the second contact.

Abstract: An apparatus for measuring oil droplets and other bodies in a liquid, the apparatus comprising a body having an imaging device mounted therein, said body having a measurement window adjacent a measuring region through which an image of a fluid within the measurement region may be viewed by the imaging device, wherein a light source is provided for illuminating said measurement region, said light source being directed towards the imaging device by a light directing means, the apparatus including an ultrasonic transducer mechanically coupled to the measurement window for removing fouling from the measurement window and for creating cavitation within said measurement region, wherein said light directing means is located in or adjacent said measurement region to be exposed to said cavitation created by the ultrasonic transducer to remove fouling from said light directing means.

Abstract: The present disclosure relates generally to the materials and methods involving biosensing systems. More specifically, the present disclosure relates to biosensors for making real-time, continuous, and quantitative assessments of analyte concentrations in aqueous environments using oxidases. The present disclosure addresses the need for improved methods and systems for making quantitative assessments of various analytes in a continuous and real-time manner, without the need for expensive and time-consuming laboratory processing.

Abstract: Methods and apparatus monitor health by detection of sleep stage. For example, a sleep stage monitor (100) may access sensor data signals related to bodily movement and/or respiration movements. At least a portion of the detected signals may be analyzed to calculate respiration variability. The respiration variability may include one or more of variability of respiration rate and variability of respiration amplitude. A processor may then determine a sleep stage based on one or more of respiration variability and bodily movement, such as with a combination of both. The determination of sleep stages may distinguish between deep sleep and other stages of sleep, or may differentiate between deep sleep, light sleep and REM sleep. The bodily movement and respiration movement signals may be derived from one or more sensors, such as non-invasive sensor (e.g., a non-contact radio-frequency motion sensor or a pressure sensitive mattress).

Abstract: Methods, apparatuses and systems of estimating a location of a device are disclosed. One method includes determining a first position of the device, sensing at least one magnetic anomaly at the first position, estimating a location of the magnetic anomaly relative to the first position by determining a plurality of magnetic properties of the magnetic anomaly based on sensed signals of at least a magnetic sensor, and estimating a second position of the device based on a sensed change in a distance from the magnetic anomaly to the device.

Abstract: A position-sensitive radiation counting detector includes a first and a second substrate. A gas is contained within the gap between the substrates. A photocathode layer is coupled to the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a power supply is coupled to at least one electrode. A first discharge event detector is coupled to one of the electrodes for detecting a gas discharge event in the electrode. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge counting event pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value.

Abstract: A system for determining a new orientation and/or position of an object comprises a sky polarimeter configured to record image data of the sky, a signal processing unit, and logic configured to receive and store in memory the image data received from the sky polarimeter. The logic calculates the Stokes parameters (S0, S1, S2,), DoLP, and AoP from the image data, detects obscurants and filters the obscurants (such as clouds and trees) from the image data to produce a filtered image. The logic is further configured to find the Sun and zenith in the filtered image, and to determine the roll, pitch, yaw, latitude and longitude of the object using the filtered image.

Abstract: A profiled surface for improving the propagation of radiation through an interface is provided. The profiled surface includes a set of large roughness components providing a first variation of the profiled surface having a characteristic scale approximately an order of magnitude larger than a target wavelength of the radiation. The set of large roughness components can include a series of truncated shapes. The profiled surface also includes a set of small roughness components superimposed on the set of large roughness components and providing a second variation of the profiled surface having a characteristic scale on the order of the target wavelength of the radiation.

Abstract: A method of fabricating a device using a layer with a patterned surface for improving the growth of semiconductor layers, such as group III nitride-based semiconductor layers with a high concentration of aluminum, is provided. The patterned surface can include a substantially flat top surface and a plurality of stress reducing regions, such as openings. The substantially flat top surface can have a root mean square roughness less than approximately 0.5 nanometers, and the stress reducing regions can have a characteristic size between approximately 0.1 microns and approximately five microns and a depth of at least 0.2 microns. A layer of group-III nitride material can be grown on the first layer and have a thickness at least twice the characteristic size of the stress reducing regions.

Abstract: An electronic equipment enclosure (10), especially for an oil-in-water analyzer. The enclosure has a metal body (22) including an expandable folded section (26) that expands in response to increased pressure within the enclosure thereby increasing the volume defined by the enclosure. The enclosure is capable of containing internal explosions and is suitable for use in hazardous environments where the electronic equipment can come into contact with explosive gases.

Abstract: A solution for disinfecting flowable products, such as liquids, suspensions, creams, colloids, emulsions, powders, and/or the like, as well as accessories and products relating thereto, such as containers, caps, brushes, applicators, and/or the like, using ultraviolet radiation is provided. In an embodiment, an ultraviolet impermeable cap is configured to enclose a volume corresponding to a flowable product. At least one ultraviolet radiation source can be mounted on the cap and be configured to generate ultraviolet radiation for disinfecting the enclosed area. The ultraviolet radiation source can be configured to only generate ultraviolet radiation when the volume is enclosed by the ultraviolet impermeable cap.

Abstract: A sensor for physiology sensing may be configured to generate oscillation signals for emitting radio frequency pulses for range gated sensing. The sensor 402 may include a radio frequency transmitter configured to emit the pulses and a receiver configured to receive reflected ones of the emitted radio frequency pulses. The received pulses may be processed to detect physiology characteristics such as motion, sleep, respiration and/or heartbeat. In some embodiments, the sensor may employ a circuit including a pulse generator configured to generate signal pulses. The circuit may also include a dielectric resonator oscillator configured to generate a radio frequency oscillating signal. A switched oscillation circuit may be coupled to the pulse generator and the dielectric resonator oscillator. The switched circuit may be configured to generate a pulsed radio frequency oscillating signal for emitting the radio frequency pulses.

Abstract: A superlattice layer including a plurality of periods, each of which is formed from a plurality of sub-layers is provided. Each sub-layer comprises a different composition than the adjacent sub-layer(s) and comprises a polarization that is opposite a polarization of the adjacent sub-layer(s). In this manner, the polarizations of the respective adjacent sub-layers compensate for one another. Furthermore, the superlattice layer can be configured to be at least partially transparent to radiation, such as ultraviolet radiation.

Abstract: A position-sensitive radiation counting detector includes a first and a second substrate. A gas is contained within the gap between the substrates. A photocathode layer is coupled to the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a power supply is coupled to at least one electrode. A first discharge event detector is coupled to one of the electrodes for detecting a gas discharge event in the electrode. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge counting event pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value.

Abstract: A solution for manufacturing semiconductors is provided. An embodiment provides a chemical vapor deposition reactor, which includes a chemical vapor deposition chamber. A substrate holder located in the chemical vapor deposition chamber can be rotated about its own axis at a first angular speed, and a gas injection component located in the chemical vapor deposition chamber can be rotated about an axis of the gas injection component at a second angular speed. The angular speeds are independently selectable and can be configured to cause each point on a surface of a substrate wafer to travel in an epicyclical trajectory within a gas flow injected by the gas injection component. An angle between the substrate holder axis and the gas injection component axis and/or a distance between the substrate holder axis and the gas injection component axis can be controlled variables.

Abstract: The invention relates to a sensor assembly. The assembly includes a sensor body 2 of appropriate construction (preferably substantially ceramic) with a radial flange 8. A housing 20 is of two-part integral construction and includes an annular groove or recess in which the radial flange 8 of the sensor body 2 is received when the sensor assembly is in its assembled form. The annular groove is defined by a pair of facing shoulders 28, 36 each having an annular surface 30, 38 and a substantially cylindrical surface 32, 40. The annular surfaces 30, 38 are in sliding contact with the flange 8 and apply a compressive load to the flange to form a hermetic seal between the housing 20 and the sensor body 2. The hermetic seal is maintained even if the sensor assembly is used at high operating temperatures.

Abstract: A biosensor and a sample inflow sensing method are disclosed. The biosensor includes a sample sensing electrode configured to sense inflow of a sample; a component measuring electrode configured to measure a specific component contained in the sample; and an integrated circuit unit for controlling configured to apply a power to the sample sensing electrode periodically and to determine the inflow of the sample based on a capacitance generated by the power applied to the sample sensing electrode.