| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 250338500 | With means to analyze uncontained fluent material | 41 |
| 20080251724 | GAS AND/OR FLAME IMAGING SYSTEM - A gas imaging system for remotely detecting gas emissions by passive images of infrared radiation includes an optical system having a field of view. The optical system has a lens, an optical filter system for filtering light passed through the lens, and a photosensitive array located at the focal plane of the optical system to produce multi-spectral infrared image data of a scene under observation. A multi-spectral image processing system is configured for processing the image data produced by the photosensitive array to detect hazardous gas emissions and to discriminate against infrared radiation emitted by false alarm sources. Some embodiments may be configured for flame detection. Other embodiments may be configured for gas and flame detection. | 10-16-2008 |
| 20090236527 | Device for Indicating Illicit Substances in the Exhalation Air of a Machine Operator - A device for a continuous indication of illicit substances in the exhalation air of face of the machine operator comprises an IR source and an IR detector being sensitive to wave length having an absorbance of the illicit substance, whereby the beam path of the IR source to the detector runs in front of the face of the operator. | 09-24-2009 |
| 20090302221 | APPARATUS AND METHOD FOR OPTICALLY DETERMINING THE PRESENCE OF CARBON DIOXIDE - Apparatus for optically determining the presence of carbon dioxide within a fluid, said apparatus comprising:—a light emitting source, an optical sensing probe in contact with the fluid to analyze; optical light transmitting means in order to convey the light emitted from the light emitting source to the optical sensing probe and the light reflected by the optical sensing probe to means to discriminate between wavelengths of light beams reflected by the optical sensing probe;—means to convert wavelengths discriminated light beams into measurement data indicating presence of carbon dioxide within the fluid, wherein the optical sensing probe comprises a tip working as attenuated total reflection (ATR) absorber within the infrared wavelength. | 12-10-2009 |
| 20090309028 | Intelligent system and method to monitor object movement - Real time performance of a combustion process is evaluated by comparing sensor data with a template. Sensor data is derived from a passive infrared system and corresponds to specific heat capacity. Analysis of the real time performance can be used to control a parameter of the combustion process. | 12-17-2009 |
| 20090321645 | Infrared Camera System With Diffractive Optical Array - An apparatus and method for imaging incoming radiation. The apparatus includes a radiation shield unit having a cavity. A detector array is positioned at least partially within the cavity and has a planar surface with at least one infrared detector affixed on the detector array. A diffractive optical array is positioned within the cavity and is in thermal communication with the radiation shield unit. The diffractive optical array is configured to diffract and direct the spectral components of the incoming radiation onto the detector array. The apparatus is in an external environment having a predetermined ambient temperature. The radiation shield unit, diffractive optical array and detector array may be temperature-controlled to a temperature that is within a few degrees of the ambient temperature. The radiation shield unit, diffractive optical array and detector array may be temperature-controlled to cryogenic temperatures. | 12-31-2009 |
| 20100006760 | Ultraviolet lidar for detection of biological warfare agents - A system and method for detecting airborne agents. The system includes a semiconductor ultraviolet optical source configured to emit an ultraviolet light, a controller configured to generate a pseudo-random code for emission of the ultraviolet light modulated at the pseudo-random code, a telescope configured to focus the ultraviolet light to a distance from the source and to receive elastically backscattered signals and fluorescence signals from the distance, and a sensor configured to detect the elastically backscattered and fluorescence signals. The method generates a pseudo-random code and emits at least one wavelength of ultraviolet light modulated at the pseudo-random code, transmits the modulated ultraviolet light pulses to a distance from the source, receives elastically backscattered signals and fluorescence signals from the distance, and detects the elastically backscattered and fluorescence signals. | 01-14-2010 |
| 20100044570 | DETECTION OF CHEMICALS WITH INFRARED LIGHT - The present invention is generally directed to a method for non-contact or stand off chemical detection that may be eye-safe by selectively exciting one ore more analytes of interest using an IR source tuned to at least one specific absorption band without significantly decomposing the analyte and determining if the analyte is present by comparing emitted photons with an IR detector signal made before and during or shortly after exciting the analyte. Another embodiment of the present invention provides a method for non-contact or stand off chemical detection that may be eye-safe by selectively exciting one or more analytes of interest using an IR source tuned to at least one specific absorption band without significantly decomposing the analyte, wherein the analyte is excited sufficiently to generate a vapor plume, and wherein the plume is examined to detect the presence of the analyte. The analyte of interest may be an explosive, an additive to an explosive, a drug, a chemical warfare agent, a biochemical, or a biological warfare agent. Additionally, the present invention provides for a system for non-contact or stand off chemical detection that may be eye-safe. | 02-25-2010 |
| 20100078560 | GAS DETECTOR - A gas detector | 04-01-2010 |
| 20100078561 | SYSTEM AND METHOD FOR DETECTING, TRACKING AND IDENTIFYING A GAS PLUME - A system and method for detecting, tracking and identifying a gas plume. The system comprises a processor and a detector in communication with the processor. The detector is effective to detect spectral radiance from a region of interest to detect first and second detected spectral radiance data with a known time difference. A database is in communication with the processor, the database includes a library. The processor is effective to create at least a first image and a second image from the first and second detected spectral radiance data and co-register the first and second images to produce a first co-registered image and a second co-registered image. The processor is further effective to subtract the first co-registered image from the second co-registered image to produce a difference image and generate a cluster region around a difference region in the difference image. The processor is further effective to analyze the spectral radiance from the cluster region to produce a spectral characteristic curve; and correlate the spectral characteristic curve against the library to identify the gas plume. | 04-01-2010 |
| 20100127173 | SYSTEM AND METHOD FOR DETECTING GAS LEAKS - A gas detection system is disclosed that uses an infrared illumination source and an infrared imaging detector. The infrared source is selected to emit at wavelengths corresponding to an absorption band of a gas to be detected. The region to be analyzed for the gas is illuminated, and the infrared radiation reflects off of local surfaces back to the imaging detector. At locations where the gas is present, the infrared radiation is absorbed which reduces the back reflection to the detector. | 05-27-2010 |
| 20100133435 | DEVICE FOR THE REMOTE OPTICAL DETECTION OF GAS - An remote optical gas detection device comprising a detection housing ( | 06-03-2010 |
| 20100243898 | Fire Detector - Provided is a fire detector in which an element substrate can be easily removed from and mounted into an optical case. The fire detector includes: an optical case ( | 09-30-2010 |
| 20110095189 | Tactical chemical biological threat detection - This relates to a chemical biological threat detection system for enhancing the, discrimination in chemical biological threat detection in atmospheric air, low level chemical biological threat detection in air, as well as tactical determination of threat chemical biological agents' concentrations in a specific atmospheric range, at various time intervals. This uses the concept of quantitative monitoring the atmospheric air for chemical biological threats, as well as measuring the quantitative correlations/ratios in differential changes in the air, for the active/passive chemical biological Infrared (IR) EM radiation at an 8-12 μM wavelength, absorption/emission/scattering, using Electro-Optics. This chemical biological solution will use the reference chemical biological IR EM radiation (absorption, emission, scattering) signatures for comparison. | 04-28-2011 |
| 20110133089 | REMOTE SENSING OF GAS LEAKS - A gas filter correlation radiometer mounted on an aircraft is flown over a target area. The gas filter correlation radiometer is configured to detect ethane (C | 06-09-2011 |
| 20110204234 | PHTHALOCYANINE DYE WITH EXTENDED CONJUGATION, INK AND DETECTION SYSTEM USING SAME - A phthalocyanine dye with extended conjugation includes one or both of a phthalocyanine component and a naphthalocyanine component and at least one water soluble substituent on an aryl group of the phthalocyanine dye. The extended conjugation of the phthalocyanine dye includes at least one benzene moiety of the component being one of (a) joined to an aryl group either indirectly using an alkylene linkage or directly, (b) joined to a benzene moiety of another of the components to form an oligomer of the components, and (c) a combination of (a) and (b). The extended conjugation shifts absorption of the phthalocyanine dye to greater than 800 nm. | 08-25-2011 |
| 20120091344 | DETECTION OF CHEMICALS WITH INFRARED LIGHT - The present invention is directed to a method for non-contact or stand off chemical detection by selectively exciting one or more analytes of interest using an IR source tuned to at least one specific absorption band without significantly decomposing the analyte and determining if the analyte is present by comparing emitted photons with an IR detector signal made before and during or shortly after exciting the analyte. Another embodiment provides a method for non-contact or stand off chemical detection by selectively exciting one or more analytes of interest using an IR source tuned to at least one specific absorption band without significantly decomposing the analyte, wherein the analyte is excited sufficiently to generate a vapor plume, and wherein the plume is examined to detect the presence of the analyte. Additionally, the present invention provides for a system for non-contact or stand off chemical detection. | 04-19-2012 |
| 20120153155 | Methods and systems for remote detection of gases - Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art. | 06-21-2012 |
| 20120153156 | Remote optothermal sensor (rose) standoff detection of CWAs, explosives vapors and TICs - A system and method for standoff detection of explosives, CWAs and TICs using optical techniques. Preliminary analysis indicates detection of TNT at a distance of 0.5 km with a signal-to-noise ratio exceeding 10,000. The optical/thermal techniques apparently permit unambiguous detection of the target molecules even the presence of commonly encountered interferents. The technique, named Remote Optothermal Sensor (ROSE), has the potential for standoff detection at distances greater than one (1) kilometer. | 06-21-2012 |
| 20120217402 | TACTICAL CHEMICAL BIOLOGICAL THREAT DETECTION - This relates to a chemical biological threat detection system for enhancing the, discrimination in chemical biological threat detection in atmospheric air, low level chemical biological threat detection in air, as well as tactical determination of threat chemical biological agents' concentrations in a specific atmospheric range, at various time intervals. This uses the concept of quantitative monitoring the atmospheric air for chemical biological threats, as well as measuring the quantitative correlations/ratios in differential changes in the air, for the active/passive chemical biological Infrared (IR) EM radiation at an 8-12 μM wavelength, absorption/emission/scattering, using Electro-Optics. This chemical biological solution will use the reference chemical biological IR EM radiation (absorption, emission, scattering) signatures for comparison. | 08-30-2012 |
| 20120223232 | GAS DETECTION DEVICE - A gas detection device of the present invention includes: a laser light source which emits wavelength-variable laser light to an optical waveguide; a bolometer which obtains a detection signal by detecting output light from the optical waveguide, and has a microbridge structure having a temperature detection unit and a dielectric member arranged above the temperature detection unit; a detection unit which detects a type and amount of gas molecules present on a surface of the optical waveguide based on the detection signal and information of a wavelength of the laser light source; an optical path length change member which changes an optical path length between the temperature detection unit and the dielectric member; and a driving control circuit which performs driving control of the optical path length change member such that the optical path length becomes an integer multiple of a half wavelength of the laser light emitted from the laser light source. | 09-06-2012 |
| 20120267532 | IR EMITTER AND NDIR SENSOR - An IR source in the form of a micro-hotplate device including a CMOS metal layer made of at least one layer of embedded on a dielectric membrane supported by a silicon substrate. The device is formed in a CMOS process followed by a back etching step. The IR source also can be in the form of an array of small membranes—closely packed as a result of the use of the deep reactive ion etching technique and having better mechanical stability due to the small size of each membrane while maintaining the same total IR emission level. SOI technology can be used to allow high ambient temperature and allow the integration of a temperature sensor, preferably in the form of a diode or a bipolar transistor right below the IR source. | 10-25-2012 |
| 20130087708 | DETECTING VOLCANIC ASH IN JET ENGINE EXHAUST - Onboard systems and methods for early detection that an aircraft has flown into a volcanic ash plume embedded within a water vapor cloud having a concentration of a volcanic ash which would be dangerous to an aircraft. The detection method generally comprises the steps of measuring the infrared emission characteristics of a jet engine exhaust and generating a detection signal when the intensity of infrared emissions at or near a spectral peak wavelength exceeds a threshold. | 04-11-2013 |
| 20130277559 | Holographic Detection Device and Method for Content of Gas in GIS Switch - A holographic detection device for a content of a gas in a GIS switch includes a laser and a data process system. The laser includes a laser emitter and a laser receiver which are fixed at a sampling port of the GIS switch and connected with the data process system. A holographic detection method for a content of a gas in a GIS switch includes emitting a laser beam towards the inside of the GIS switch; receiving the laser beam from the inside of the GIS switch, and calculating a content of hydrogen fluoride gas inside the GIS switch according to an intensity of the emitted laser beam and an intensity of the received laser beam. Since the laser beam goes through the inside of the GIS switch, there is a small error in the detection result, which thus can reflect a real state inside the GIS switch. | 10-24-2013 |
| 20130284928 | DEVICE AND SYSTEM FOR SELECTIVELY DETECTING GAS COMPONENTS OR CONCENTRATIONS OF GAS COMPONENTS IN GAS TO BE ANALYZED AND METHOD FOR OPERATING SUCH DEVICE - A photonic crystal, which is a periodically arranged structure made of free-standing columns, has a base material of at least one metal or a metal alloy. Intermediate spaces between the columns allow passage of a gas to be analyzed. The photonic crystal has predefined imperfections, by which at least one resonator is formed, the resonant frequency of which is in a frequency range which is absorbed by a gas component to be detected. A heating unit heats at least some of the columns and at least one detector element extracts the energy present in the resonator in the heated state under the action of the gas to be analyzed. The device may have extremely small dimensions and very low energy consumption. | 10-31-2013 |
| 20130334417 | METHOD AND DEVICE FOR DETECTING SMOKE - The smoke detector includes: a chamber ( | 12-19-2013 |
| 20140061471 | AIRFLOW-ORGANIZATION TESTING METHOD FOR A CLEAN ROOM AND SYSTEM USING THE SAME METHOD - The present invention discloses an airflow-organization testing method for a clean room and a system using the same method, which are designed to solve the defects such as poor precision in the existing visual testing method. The airflow-organization testing method for a clean room according to the present invention uses a thermal imaging device to detect a sample gas-flow formed by a sample gas in the clean room, and the sample gas is a kind of gas, such as liquid nitrogen, dry ice or water vapor, with temperature difference from ambient air. The airflow-organization testing system for a clean room according to the present invention comprises a sample gas supplier and a thermal imaging device, wherein the thermal imaging device can continuously detect a spatial position of the sample gas and display it on a display. The airflow-organization testing method for a clean room according to the present invention has more accurate testing results and avoids contamination brought into the clean room; and, the detection devices employ mature technologies as well as high testing precision. The airflow-organization testing system for a clean room according to the present invention uses a sample gas supplier and a temperature detection device, thereby improving detection precision and expanding detection range. | 03-06-2014 |
| 20140070101 | GAS COMPONENT DETECTION DEVICE - An optical path of infrared rays (see the broken lines in FIG. | 03-13-2014 |
| 20140091219 | OPTICAL GAS SENSOR DEVICE AND METHOD FOR DETERMINING THE CONCENTRATION OF A GAS - A gas sensor device for determining a molar concentration of a gas to be detected, that absorbs light of a measurement wavelength that is characteristic of the gas in the infrared light region, includes a light emission device emitting measurement light of measurement wavelength into a solid angle region of a light absorption path extending through the gas, and a light detector measuring an intensity of at least one component of the measurement light that has propagated through the light absorption path, the light absorption path extending from the light emission device to an object outside the gas sensor device that at least partially reflects the measurement light to the light detector, and being essentially disposed outside of the gas sensor device, and means for determining the length of the light absorption path. A method for determining a concentration of a gas to be detected is also described. | 04-03-2014 |
| 20140191130 | REMOTE MEASUREMENT SYSTEM AND METHOD FOR PESTICIDE FOG DISTRIBUTION AND DRIFTING TENDENCY IN AERIAL PESTICIDE APPLICATION - Disclosed are a remote measurement system and method for pesticide fog distribution and drifting tendency in aerial pesticide application, which relate to the technical field of hazardous substance monitoring. The system comprises: a collection module, used for collecting infrared radiation in a detected area, and enabling the infrared radiation to be incident on an optical module; the optical module, used for obtaining, according to the incident infrared radiation, an infrared imaging spectrum in the detected area where a pesticide fog cloud cluster is distributed, and sending the infrared imaging spectrum to a processing module; the processing module, used for analyzing the infrared imaging spectrum, identifying the pesticide fog cloud, obtaining a concentration image of the pesticide fog cloud through inversion, and predicting a drifting tendency of the pesticide fog according to the concentration image. The system and method of the present invention can comprehensively reflect the drifting condition of the pesticide fog in the air in real time, and can obtain the concentration and components of the pesticide fog. The method and system improve the pesticide application efficiency, and prevent damages on the environment and residential areas while saving the cost. | 07-10-2014 |
| 20140306112 | INFRARED SENSOR WITH MULTIPLE SOURCES FOR GAS MEASUREMENT - A closed path infrared sensor includes an enclosure, a first energy source within the enclosure, at least a second energy source within the enclosure, at least one detector system within the enclosure and a mirror system external to the enclosure and spaced from the enclosure. The mirror system reflects energy from the first energy source to the at least one detector system via a first analytical path and reflects energy from the second energy source to the at least one detector system via a second analytical path. Each of the first analytical path and the second analytical path are less than two feet in length. | 10-16-2014 |
| 20140306113 | PARTICLE DETECTION - A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths. | 10-16-2014 |
| 20140361171 | Two-Channeled Measurement Apparatus - The invention relates to a measurement apparatus for the determination of gas concentrations. The apparatus comprises two spectral channels, wherein the channels are separated by a single chopper wheel. The chopper wheel has several functions. On the transmitting side, it brings the light of the two light sources on the same measuring path, on the receiving side it associates the light to the associated receiver; it has its chopper function to use the lock-in technique; and it opens the possibillity to implement an easy zero point correction. | 12-11-2014 |
| 20150028208 | LEAK DETECTION OF STATOR LIQUID COOLING SYSTEM - A safe, fast and accurate method of detecting a leak locale of a stator liquid cooling system especially in a plurality of stator windings in a liquid cooled generator is provided. The method includes the step of introducing a non-corrosive compatible gas or its air mixture having an infrared absorption spectrum into the plurality of stator windings of the liquid cooled generator and detecting leaks through the use of an infrared detection system. The infrared detection system includes an imaging component adapted to detect radiation at the infrared absorption spectrum of the non-corrosive gas or its air mixture. The imaging component is provided with a filter that filters wavelengths in a range encompassing the infrared absorption spectrum of the compatible, non-corrosive gas. The imaging component displays an image of the tracer gas leaking from stator liquid cooling system of the generator. | 01-29-2015 |
| 20150028209 | Refrigerant Gas Leak Detector - An infrared leak detector for detecting gas leaks in a pressurized gas source includes a housing that contains a sampling chamber, an infrared emitter for emitting IR energy, a filter that allows IR energy in the range of approximately 7 to approximately 14 microns to pass therethrough, a sensor that detects IR energy that has passed through the single filter to detect the presence of selected gas constituents in the gas sample, and a pump arranged to force a gas sample from a suspected gas leak that emanates from the pressurized gas source though the sampling chamber. | 01-29-2015 |
| 20150293015 | Device and Method For Measuring The Moisture In Die Casting Molds - The invention relates to a device ( | 10-15-2015 |
| 20160077001 | PARTICLE DETECTION - A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths. | 03-17-2016 |
| 20160097714 | APPARATUS FOR IMAGING HYDROGEN SULFIDE PLUME AND METHOD OF THE SAME - As hydrogen sulfide is toxic and widely present in many oil and gas facilities, it is highly desirable to use an infrared camera to detect the presence of a hydrogen sulfide (H | 04-07-2016 |
| 20160110980 | MULTI-CONDITION SENSING DEVICE INCLUDING AN IR SENSOR - Techniques are disclosed for using an infrared (IR) sensor to sense flame and/or activity within an environment of a building, such as a home or office. One example embodiment provides a multi-condition sensing device that includes an IR sensor for sensing both human occupancy and fire within a given environment. Another example embodiment provides a multi-condition sensing device that includes a plurality of sensors. A first of the sensors includes an IR sensor that is adapted to sense IR radiation within a given environment. A second of the sensors is adapted to sense a second environmental condition (different than IR radiation) within the given environment. Another example embodiment provides a standalone modular sensor block with a standard communication interface to a building management system. The sensor block may act as a combo-sensor as well as an active fire detector and alarm. | 04-21-2016 |
| 20160131623 | SYSTEMS AND METHODS FOR ANALYZING CONTAMINANTS IN FLOWING ATMOSPHERIC AIR - Optically interacting electromagnetic radiation with a flowing atmospheric air composition and optically interacting the electromagnetic radiation with an integrated computational element (“ICE”), the ICE being configured to analyze for a contaminant in the flowing atmospheric air. A detector receives the electromagnetic radiation that has optically interacted with the flowing atmospheric air and the ICE and generates an output signal corresponding to a characteristic of the contaminant in the flowing atmospheric air. | 05-12-2016 |
| 20160187535 | DEVICE AND METHOD FOR MAKING WEATHER OBSERVATIONS USING INFRARED SPECTRAL RADIOMETRY - A method of weather observations by a constellation comprises at least a first duster of three micro-satellites each orbiting around earth, and each micro-satellites comprises a spectrometer. Orbiting the three micro-satellites of the first duster around the earth in three separate orbits offset with respect to one another. Staggering the three micro-satellites with respect to one another as they orbit. Selecting the offset and the staggering, of each of the three micro-satellites with respect to one another, so that each one of the three micro-satellites have a substantially identical viewing area as each one of the three micro-satellites orbits around the earth. Sequentially collecting observations, from each of the three micro-satellites, as the micro-satellites orbit around the earth and observe substantially identical viewing areas, to separately gather atmospheric measurements and provide critical data for weather forecasting by infrared temperature and humidity soundings and motion vector winds of the earth. | 06-30-2016 |
| 20170234761 | LEAK DETECTOR | 08-17-2017 |
