Abstract:
A system for calibrating a sensor in a vehicle, such as a space capsule or another space borne apparatus, uses an expandable integrating sphere. A sensor in the vehicle measures the energy from an electromagnetic energy source within the integrating sphere through a calibration window. The expandable fluid impermeable integrating sphere expands when filled with a fluid, such that when filled with the fluid, its interior is viewable through the calibration window. The system includes a source of fluid to fill the integrating sphere and a fluid regulator coupled to the vehicle to determine when to supply the fluid to the integrating sphere to maintain an appropriate gas pressure level with the integrating sphere.
Abstract:
The invention relates to a device for testing solar cells. The device comprises an illumination field (10) having solid state illumination means, said field being arranged to emit radiation, a holding device arranged to hold at least one solar cell (20) at a predetermined position and/or in a predetermined location relative to the illumination field (10) in such a way that the illumination field (10) emits the radiation at least partially to the at least one solar cell, connection means (47) arranged to establish an electrical contact with the at least one solar cell (20), and a measuring unit (30) arranged to measure a voltage present at the connection means and/or a current flowing through the connection means.
Abstract:
In one embodiment, a quantum dot based radiation source includes a housing having a wall defining a cavity therein, a plurality of quantum dots disposed on an inner surface of the wall of the housing, and a radiation excitation source in optical communication with the housing and configured to output radiation to excite the plurality of quantum dots to emit radiation in a desired wavelength range. The quantum dot based radiation source can be used in a calibration system or calibrator, for example to calibrate a detector.
Abstract:
The present invention relates to a device for calibration in a method for the inactivation of microorganism in a biological fluid, comprising irradiating the biological fluid with an effective dose of monochromatic or polychromatic light from one or more light sources, wherein the effective dose is determined by measuring the effect of the monochromatic or polychromatic light on a dosimetric solution.
Abstract:
A light source for examining leak detection sites in heating, ventilating, and air conditioning systems using a fluorescent dye is described. The light source can include a parabolic reflector (6) or a low voltage lamp (10).
Abstract:
A testing device (100) equipped with: a microchip (7) having a receiver (71) for a test fluid, a discharge lamp (1) which emits light into the microchip test fluid receiver (71), a light source housing (2) in which the discharge lamp (1) is located, and an arithmetic calculation mechanism (110), which calculates the concentration of the component to be detected, based on the intensity of the light emitted from the test fluid container unit (71). To reduce the size of the device and to shield the arithmetic calculation mechanism (110) from electromagnetic waves generated around the light source (1), the light source housing (2) is equipped with shielding (26) connected to the ground on the outside of the light source housing (20) made of insulating material. The light source housing (2,20) is positioned within an enclosure of the testing device holding the microchip (7) and containing the arithmetic calculation mechanism (110), analysis output device(s) (101), etc.
Abstract:
A mirror (3) is provided with a light source window (2) and an illumination window (4) each establishing communicative connection between an inner face side and an outer side of a hemispherical unit (1). The light source window (2) is an opening to which a light source (OBJ) to be measured is attached mainly. The illumination window (4) is an opening for guiding a flux of light from a correcting light source (9) used for measurement of self-absorption toward the inner face of the hemispherical unit (1). A self-absorption correcting coefficient of the light source (OBJ) is calculated based on an illuminance by a correcting flux of light in a case where the light source to be measured (OBJ) in a non-light emitting state is attached to the light source window (2) and an illuminance by a correcting flux of light in a case where a calibration mirror is attached to the light source window.
Abstract:
This portable light source apparatus accommodates a deuterium lamp 10 in a lamp box 42 and, at the same time, in a housing 41 in order for the influence of temperature changes in the outside air to become very small. Namely, the deuterium lamp 10, which is susceptible to changes in temperature, is enveloped not only by the lamp box 42 but also by the housing 41, thereby being accommodated in a double shield structure. As a result, the temperature change of the housing 41, which is the most likely to be affected by the outside air, is harder to be transmitted to the deuterium lamp 10, whereby the latter can be utilized without taking account of the changes in weather during outdoor operations or influences of air conditioners and the like during indoor operations. Further, the deuterium lamp 10 can be inserted into and removed from the lamp box 42 from thereabove, so that operations of replacing the lamp 10 become easier even when the housing 41 is made compact, whereby the light source apparatus can be carried easier outdoors and in the field.