Abstract:
An apparatus for measuring a characteristic of a sample using a centrifuge and optical components is disclosed. The centrifuge may be a standard benchtop centrifuge. The optical components may be sized and dimensioned to fit, along with the sample, inside the centrifuge.
Abstract:
The present invention relates to a biological sample quality apparatus for determining the quality of a biological sample. The apparatus includes a sample receiver for receiving the biological sample. One or more light sources are provided for supplying light to the sample. An image sensor is provided for capturing an image of the lit sample. The apparatus also includes an image processor for image processing the captured image to determine the quality of the sample. Advantageously, image processing may be used to determine the quality of a sample for use in collection sites and screening laboratories so that acceptability can be determined prior to analyzing the sample. Determination that the sample is of sufficient quality (e.g. sufficient biomaterial) prior to analyzing saves wastage of laboratory time and expense of materials and chemicals. The apparatus may be in the form of desktop or hand-held portable variations.
Abstract:
Methods and systems for detecting oil proximate to a body of ice is disclosed herein. An example system includes an energy emitter disposed proximate to a first surface of a body of ice. An energy detector is disposed proximate to a second surface of the body of ice. The energy detector is used to map a distribution of oil proximate to the body of ice based, at least in part, on differences in energy transmitted through the body of ice.
Abstract:
A gas sensor for measuring concentration of a predetermined gas comprises a light source arranged to emit pulses of light, a measurement volume, a detector arranged to receive light that has passed through the measurement volume, and an adaptable filter disposed between the light source and the detector. The gas sensor has a measurement state in which it passes at least one wavelength band which is absorbed by the gas and a reference state in which said wavelength band is attenuated relative to the measurement state. The adaptable filter is arranged to change between one of said measurement state and said reference state to the other at least once during each pulse.
Abstract:
A system for and method of performing multi-technique imaging. Such multi-technique imaging system includes a surface for supporting a specimen and at least two illumination sources for producing light radiation. The system also includes a plurality of reflective and refractive devices arranged to direct at least part of the light radiation from each of the at least two illumination sources to the surface such that at least part of the light radiation from each of the at least two illumination sources illuminates substantially the same area on the surface. The system also includes a sensor configured to receive light radiation from the at least two illumination sources reflected by the specimen and/or that pass by the specimen. The system also includes a power source configured to power the at least two illumination sources and the sensor.
Abstract:
A portable breath analyzing device to measure the rate of partial gas that is exhaled in the breath fluid. The device includes a rechargeable power supply unit, a device to emit pulsated infrared radiation, an infrared receiver, and a measuring vessel. The emission device includes a heating element; the measuring vessel includes a metallic tube whose interior surface is polished and coated with a deposit that reflects at least the infrared radiation of wavelengths that are between (9 μm, 10 μm) and at each end of the tube, a nozzle comprising a cone-shaped section meant to be placed in the tube axis. The infrared emission device is placed on the longitudinal axis of the tube, at the level of one of the nozzles, and the receiver is placed on the longitudinal axis, at the level of the other nozzle.
Abstract:
A portable breath analyzing device to measure the rate of partial gas that is exhaled in the breath fluid. The device includes a rechargeable power supply unit, a device to emit pulsated infrared radiation, an infrared receiver, and a measuring vessel. The emission device includes a heating element; the measuring vessel includes a metallic tube whose interior surface is polished and coated with a deposit that reflects at least the infrared radiation of wavelengths that are between (9 μm, 10 μm) and at each end of the tube, a nozzle comprising a cone-shaped section meant to be placed in the tube axis. The infrared emission device is placed on the longitudinal axis of the tube, at the level of one of the nozzles, and the receiver is placed on the longitudinal axis, at the level of the other nozzle.
Abstract:
An optical analysis system for measuring compositions of a sample includes a light source radiating a first light. A modulator disposed in a ray path of the light modulates the light to a desired frequency. A spectral element filters the light for a spectral range of interest of the sample. An optical filter receives a first light beam split from the light reflecting from the sample and optically filters data carried by the first light beam into at least one orthogonal component of the first light beam. A first detector measures a property of the orthogonal component. A second detector receives a second light beam split from the light reflecting from the sample for comparison of the property of the orthogonal component to the second light beam. An accelerometer senses when to acquire data from the sample.
Abstract:
An optical fluid tester device for testing a fluid sample in an ampoule includes an ampoule cradle, a radiation source, a radiation detector and an analyzer. The ampoule cradle supports the ampoule. The ampoule with the fluid sample serves as a lens whose focal properties are dependent on the index of refraction of the fluid sample. The radiation source irradiates the ampoule. The radiation detector is located opposite the radiation source so that the ampoule, when supported by the ampoule cradle, lies between the radiation source and the radiation detector. The detector serves to detect the intensity of the incident radiation. The analyzer verifies the composition of the fluid sample based on the detected intensity, which is dependent on the focal properties of the ampoule and is, therefore, indicative of the composition of the fluid sample.
Abstract:
A detection system is provided, the detection system comprising a light source that generates excitation light having a wavelength sufficient to excite a fluorophore in a sample; an excitation filter positioned along a first line along a path of the excitation light, the excitation filter transmitting the excitation light from the light source; a beam splitter positioned along the first line, the beam splitter reflecting the excitation light transmitted by the excitation filter along a second line toward a mirror positioned on one side of the beam splitter, and passing emitted light reflected along the second line; the mirror, positioned to reflect the excitation light from the beam splitter to the fluorophore in the sample along a third line, normal to both the first and second lines, wherein the mirror further reflects emitted light emitted along the third line, along the second line toward the beam splitter; an emission filter positioned along the second line, on a second side of the beam splitter; and a detector that detects the emitted light transmitted by the emission filter.