Abstract:
A personal-sized, portable explosive detection field test kit (ETK) and related methods of use. Embodiments of the disclosed ETK include a case having a closing system featuring three levels of closure which retain the case cover securely in a closed position until ready for use, while being easily opened when necessary. The ETK instructions are permanently attached to the case to prevent loss. The case includes retention features which retain the kit components until needed and protects them against loss or damage. The ETK includes one or more test tubes that are color coded and include abbreviated instructions.
Abstract:
The invention relates to a device and method for measuring the properties of a surface. The device comprises means for producing illuminating light, which means are arranged to aim the illuminating light at the surface to be measured using at least two different wavelengths and at least two different angles, as well as means for directing the light reflected or scattered from the surface to a detector, in order to create an image of the surface to be measured. The device according to the invention further comprises at least one reference surface, the contents of which can be placed in the vicinity of the surface to be measured, in such a way that the illuminating light is also aimed at the reference surface and the light reflected or scattered from the reference surface can also be directed to the detector. The invention makes possible excellent measurement precision and repeatability, using a simple device construction with low production costs.
Abstract:
A device, system and method for portable fluorescence detection. The portable device of the present invention features a low power light, in which a wavelength range is defined as at least one wavelength of light. The light source is preferably highly energy efficient, such that a majority of the electrical power which is consumed is then converted into transmitted light. The emitted light from the excited fluorophore is then preferably detected with any low cost and low power photodetector. Although optionally a highly sensitive optical detector may be used, preferably fluorescence is detected with any light sensing device, such as a regular photodiode or a CCD (charge-coupled device) sensor for example.
Abstract:
Die Anmeldung offenbart ein Verfahren (200) zum Ermitteln eines Kohlendioxidgehaltes einer Umgebungsluft (130). Das Verfahren (200) umfasst einen Schritt des Bereitstellens (210) eines mobilen Datenübertragungsgerätes (110), das einen Sensor (120) zur Erfassung von Kohlendioxid in einer Umgebungsluft (130) aufweist, und einen Schritt des Kalibrierens (215) des Sensors (120), wobei der Schritt des Kalibrierens (215) als ein Messen eines Kohlendioxidgehaltes der Umgebungsluft (130) in einer Referenzsituation (300) erfolgt. Ferner umfasst das Verfahren (200) einen Schritt des Messens (220) eines Kohlendioxidgehalts der Umgebungsluft (130) unter Verwendung des Sensors (120).
Abstract:
An ultraviolet light source such as an ultraviolet torch (15) is used to locate lost or concealed objects such as a golf ball (11) located in rough ground (20). The method is preferably carried out in darkness or subdued light.
Abstract:
REFIERIDO A UN DISPOSITIVO PARA DETERMINAR POR LO MENOS UNA PROPIEDAD OPTICA DE UNA MUESTRA, EN EL QUE EL DISPOSITIVO COMPRENDE: A) UNA FUENTE DE LUZ DE EXCITACION SINTONIZABLE PARA APLICAR LA LUZ DE EXCITACION A LA MUESTRA, EN DONDE DICHA FUENTE DE LUZ COMPRENDE UN CONJUNTO ORDENADO DE DIODOS EMISORES DE LUZ, EN EL QUE EL CONJUNTO ORDENADO DE DIODOS EMISORES DE LUZ ESTA CONFIGURADO, POR LO MENOS PARCIALMENTE, COMO UN CONJUNTO ORDENADO MONOLITICO DE DIODOS EMISORES DE LUZ, EL CUAL COMPRENDE A SU VEZ, POR LO MENOS TRES DIODOS EMISORES DE LUZ, CADA UNO DE LOS CUALES TIENE ESPECTROS DE EMISIONES DIFERENTES; Y B) UN DETECTOR PARA DETECTAR LA LUZ DE DETECCION QUE EMERGE DE LA MUESTRA
Abstract:
A sensor module and method for determining and imaging fluorescence lifetime based on the time-of-flight values are disclosed. The sensor module comprises an opaque housing (OH) having a first chamber (CH1) and a second chamber (CH2) which are separated by a non-transparent barrier (LB). Further, it comprises an optical emitter (OE) arranged in the first chamber (CH1) and configured to emit light through a first aperture (AP1). Pulsed excitation light of a specified wavelength is directed to optically excite a fluorescent probe (FP) positioned in the optical path of the excitation light. The module also comprises a detector (MD) arranged in the second chamber (CH2) and configured to detect through a second aperture (AP2) photons originating from the fluorescent probe (FP). The module further comprises: a measurement block (MB) configured to determine a temporal difference between an arrival time of one of the received photons with respect to the emission pulses; a histogram block (HIST) configured to accumulate the difference values in a histogram; a processing circuit (PRC) configured to compute time-of-flight values based on an evaluation of the histogram and then to compute a fluorescence lifetime from the time-of-flight values and generate an output signal (OS) being indicative of the fluorescence lifetime of the fluorescent probe; and a control unit (CU) configured to initiate pulsed emission of the optical emitter (OE).
Abstract:
The rapid screening of diseases in individuals is paramount in maintaining one's health and minimizing the spread of infectious diseases between individuals. There are many instances where this becomes challenging. For example, in developing countries like The Democratic Republic of Congo, Nigeria and Sudan, there are frequent outbreaks of malaria. The World Health Organization estimated there were 216 million cases of malaria, of which more than 650,000 people died, many of which were pregnant woman and children. In such countries, malaria is the leading cause of morbidity and death. Incredibly there are 100 countries around the globe where malaria creates a burden on health and economic development.