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US20120147375 DRYNESS FRACTION MEASURING DEVICE AND DRYNESS FRACTION MEASURING METHOD  
The provision of a dryness fraction measuring device includes a light-emitting body for irradiating moist steam with light of a plurality of wavelengths; a light-receiving element for receiving...
US20110090505 Quantum Infrared Sensor and Quantum Infrared Gas Concentration Meter Using the Same  
The present invention relates to a quantum infrared sensor and a gas concentration meter using the same, the quantum infrared sensor having a small and simple device shape and also being capable...
US20130044323 METHOD AND SYSTEM FOR DETECTING MOISTURE IN NATURAL GAS  
A system includes a moisture analyzer configured to detect moisture in natural gas. The moisture analyzer includes an absorption cell that encloses and conducts the natural gas. The moisture...
US20140268157 OPEN-PATH GAS ANALYZER WITH ENVIRONMENTAL PROTECTION  
An open-path gas analyzer is disclosed and is configured to prevent or reduce contamination of the analyzer over time.
US20100284011 Making and using Doppler shifted measurements in gas filter correlation radiometry  
A method is provided for making and using measurements in gas filter correlation radiometry. A Gas Filter Correlation Radiometer (GFCR) instrument is moved in a region of space surrounding a...
US20120176621 GAS MIGRATION TEST METHOD  
A method for performing a gas migration test in a test area surrounding a ground surface end of a wellbore, including providing an optical gas detector configured to selectively detect methane,...
US20100002235 LASER DIODE ARRANGEMENTS AND METHOD FOR GAS DETECTION  
A gas detection laser diode device and gas detection unit including the gas detection laser diode device having a hermetically sealed housing with electrical connectors at the bottom and a window,...
US20140032129 Methods for gas leak detection and localization in populated areas using multi-point analysis  
Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured...
US20110199611 Detector for cavity ring-down spectroscopy  
A cavity ring-down spectroscope includes a ring-down cavity. A trigger detector is optically coupled within the ring-down cavity to generate a signal to indicate a desired radiation level in the...
US20100027016 Ozone Monitor with Gas-Phase Ozone Scrubber  
The present invention provides a means of greatly reducing or eliminating the interferences of UV-absorbing compounds, mercury, water vapor and particulates in the UV absorbance measurement of...
US20110032516 Optical Absorbance Measurements With Self-Calibration And Extended Dynamic Range  
Detector data representative of an intensity of light that impinges on a detector after being emitted from a light source and passing through a gas over a path length can be analyzed using a first...
US20120194818 Gas Analyzer for Measuring the Mercury Content of a Gas  
The invention relates to a gas analyzer for measuring the mercury content of a gas having an Hg light source which transmits transmitted light having wavelengths of at least one spectral line of...
US20110235041 WIRELESS SENSOR SYSTEM FOR ENVIRONMENTAL MONITORING  
A wireless sensor system is provided that utilizes reliable, small, inexpensive and low power-consuming sensor nodes for monitoring environmental parameters that can communicate through wireless...
US20140104616 FLUX MONITOR  
A flux monitor system includes a light source and a sensor.
US20110165315 Flux Monitor  
A flux monitor system includes a light source and a sensor.
US20120274933 Detection system for airborne particles  
This invention relates to a detection system for particles suspended in a gas. The detection system includes an electrostatic precipitator constructed to collect the particles from the gas onto a...
US20130008224 METHOD FOR CALIBRATION OF A CO2 CONCENTRATION SENSOR AND A MEASURING DEVICE  
This publication discloses a method for calibrating a CO2 concentration measuring device, in which method gas concentration is measured in a room. In accordance with the invention presence of...
US20140253922 Dynamic Reconstruction Of A Calibration State Of An Absorption Spectrometer  
A reference harmonic absorption curve of a laser absorption spectrometer can have a reference curve shape derived from a reference signal generated by the detector in response to light passing...
US20130003046 GAS CONCENTRATION CALCULATION DEVICE AND GAS CONCENTRATION MEASUREMENT MODULE  
A device includes a gas cell (10X) configured to form an introduction space (11X) into which a target gas is introduced, an infrared light source (20X) disposed at one end of the gas cell (10X), a...
US20100073679 OPTICAL MEASURING HEAD FOR A DUCT GAS MONITORING SYSTEM  
An optical measuring head for a duct gas monitoring system is provided, the measuring head being mounted to an outer wall of a gas duct through which the duct gas flows. The measuring head has a...
US20090141281 DETECTOR/IMAGER  
A back scatter absorption detector/imager having an optical parametric device for generating sensing radiation, the optical parametric device having a nonlinear medium (NLC) and a pump wave laser...
US20090028209 Energy Meter For Mixed Streams Of Combustible Compounds  
An energy content meter can spectroscopically quantify oxidation products after oxidation of a combustible mixture. The measured oxidation product concentrations or mole fractions can be converted...
US20100011836 CAVITY-ENHANCED PHOTO ACOUSTIC TRACE GAS DETECTOR WITH IMPROVED FEEDBACK LOOP  
A photo acoustic trace gas detector (100) is provided for detecting a concentration of a trace gas in a gas mixture. The detector (100) comprises a light source (101) for producing a light beam...
US20120019829 Oxygen Concentration Sensors and Methods of Rapidly Measuring the Concentration of Oxygen in Fluids  
Provided are sensors and methods of measuring the oxygen concentration of a fluid. An excitation light source is in optical communication with a transducer for transmitting an excitation light...
US20110228276 NITROGEN OXIDE SENSING ELEMENT, NITROGEN OXIDE SENSOR, NITROGEN OXIDE CONCENTRATION DETERMINATION DEVICE USING SAME, AND METHOD FOR DETERMINING NITROGEN OXIDE CONCENTRATION  
The nitrogen oxide sensing element of the present invention is such that a sensing film (11) is formed on the surface of a substrate (12a), the sensing film including a polymer containing as...
US20070182965 Linked extendable gas observation system for infrared absorption spectroscopy  
A modular system for gas analysis has a first gas cell that receives and passes at least a portion of an infrared light beam through at least a portion of the first gas cell. A second gas cell...
US20090303487 TUNABLE PHOTONIC CAVITIES FOR IN-SITU SPECTROSCOPIC TRACE GAS DETECTION  
Compact tunable optical cavities are provided for in-situ NIR spectroscopy. MEMS-tunable VCSEL platforms represents a solid foundation for a new class of compact, sensitive and fiber compatible...
US20100241361 Binning and Tomography for High Spatial Resolution Temperature and Species Concentration Measurements  
A method of absorption spectroscopy including obtaining absorption data at multiple wavelengths along more than one line-of-sight path through a quantity of gas of interest. The method further...
US20120258545 MEASURING CHEMICAL PROPERTIES OF A SAMPLE FLUID IN DIALYSIS SYSTEMS  
In one aspect of the invention, a method includes determining an amount of carbon dioxide (CO2) in dialysate flowing through a dialysis system using a CO2 sensor associated with the dialysis...
US20110211193 PRESSURE CONTROLLED SPECTROSCOPIC HEATING VALUE SENSOR  
A method and system for measuring a physical property of a fluid in which light having wavelengths in the near-infrared is directed into a test cell containing the fluid and portions of the light...
US20120009694 APPARATUS AND METHOD FOR MONITORING PRECURSOR FLUX  
An apparatus and method for monitoring precursor flux is disclosed herein. The apparatus comprises an optical cell configured for electromagnetic radiation spectroscopy and has a precursor...
US20120133942 GAS SAMPLING DEVICE  
The invention relates to a gas sampling device comprising a probe for sampling gas, an exploiting device for exploiting the gases sampled, a pipe for transmitting the gases sampled by the probe to...
US20100020326 BACKGROUND ACOUSTIC SIGNAL SUPPRESSION IN PHOTOACOUSTIC DETECTOR  
The present invention relates to a photo-acoustic device (100) for photo-acoustic analysis of a sample such as exhaled human breath. The device includes a sample cell cavity (102) for containing...
US20080198027 Infrared Laser Based Alarm  
The subject invention relates to a new alarm which is based on using a quarternary tunable Mid-IR laser to measure both particles and gas at the same time. The measurement is done within an area...
US20120120398 MICRO-CAVITY GAS AND VAPOR SENSORS AND DETECTION METHODS  
Micro-cavity gas or vapor sensors and gas or vapor detection methods. Optical energy is introduced into a resonant micro-cavity having a deformable coating such as a polymer. The coating swells or...
US20080092648 DETECTION OF MOISTURE IN REFRIGERANTS  
Moisture can be detected in a refrigerant background such as HFC (Hydrofluorocarbon) HFC-134A and HFC-152A and exampled by HFC-23, HFC-32, HFC-143A, HFC-125, HFC-245FA, HFC-227EA, and the like....
US20100067014 PORTAL  
A portal or gateway that includes a detector comprising a chirped laser; an open optical sample cell and a detector for detecting light from the chirped laser that has passed through the cell. The...
US20140078494 Optical Gas Detector  
A gas detector including an assembly of two hemispherical caps having opposite concavities, and which are reflective on at least a portion of their opposite surfaces, and a wafer arranged in an...
US20090316139 BIODIESEL/DIESEL BLEND LEVEL DETECTION USING ABSORBANCE  
Described herein are embodiments of a method and device for determining the relative amounts of biodiesel and diesel in a biodiesel/diesel blend without separating the biodiesel from the diesel....
US20120188548 Gas filter correlation radiometry method and system using a dissimilar gas to detect a target gas  
A Gas Filter Correlation Radiometer (GFCR) system and methods of using same are provided. The system's GFCR instrument includes a gas cell. A gas in the gas cell has a chemical composition that is...
US20080180676 Apparatus and method for energizing a computer in a vehicle  
A vehicle includes a power supply and an ignition. A computer includes a mother board with a converting circuit for converting electricity. A switching circuit controls the transfer of electricity...
US20080231857 Sensor system and sampling cell assembly for use with sensor system  
A sensor system for detection of a gaseous chemical substance is provided, which includes an optical sampling cell holding a sampling chamber of a volume of at most 20 mm3, a light emitter and a...
US20100028819 Combustion gas analysis  
A chemical analysis method for determining the concentration of carbon monoxide, gaseous water and gaseous hydrocarbon in a combustion gas. The method includes the following steps: (a) directing...
US20120099109 DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER  
A reference harmonic absorption curve of a laser absorption spectrometer, which can include a tunable or scannable laser light source and a detector, can have a reference curve shape and can...
US20100078560 GAS DETECTOR  
A gas detector 10 comprising a first radiation source 12 for emitting radiation at a first frequency, a second radiation source 14 for emitting radiation at a second frequency, a radiation...
US20050122523 Device and method of trace gas analysis using cavity ring-down spectroscopy  
An apparatus and method for analyzing an impurity on a gas is provided. The apparatus includes a first cell containing a first gas with the impurity and a second cell containing a second gas...
US20090279094 GAS-MEASURING ARRANGEMENT WITH AN OPEN OPTICAL MEASURING SECTION  
A gas-measuring arrangement (1) with an open optical measuring section (7) is formed by a measuring device (5) with an array of lenses (10, 12, 19, 24), a phase mask (22), an optical path mirror...
US20100067013 MULTI MODE FIBRE PERTURBER  
An optical arrangement comprising a multi-mode fiber (16) for carrying single mode laser light (12); a randomizer (18) for randomizing spatial modes supported by the fiber and means for averaging,...
US20110228275 FIBER OPTIC HYDROGEN PURITY SENSOR AND SYSTEM  
A hydrogen purity sensing system includes a light source which provides an optical signal through a fiber optic cable. A hydrogen purity sensor is provided in the system which comprises a...
US20080212100 Sono-Photonic Gas Sensor  
Sensing a gas includes introducing a gas into a chamber, forming a standing acoustic wave in the chamber, and irradiating the chamber with electromagnetic radiation. Some of the electromagnetic...

Matches 1 - 50 out of 305 1 2 3 4 5 6 7 >