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7389158 |
Method of making comparisons of indoor air quality scores
An air monitoring system is disclosed having an air monitoring unit with at least one sensor for measuring data of an air quality parameter and a computer for storing the air quality parameter data...
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7350427 |
Sorbent collector material based on polyorganosiloxane
The invention relates to a sorbent collector material based on polyorganosiloxane for the microextraction of substances to be analysed, the collector material having an open-cell foam structure,...
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7347112 |
Air sampler with integrated airflow sensing
Air sampler with integrated airflow sensing. The air sampler according to at least some embodiments includes an air mover that is operable to move air over a sampling media. An integrated airflow...
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7345590 |
Wireless terminal with gas leakage detection function, gas leakage detection system using the same, and gas leakage notification method
In a hydrogen gas station where a great number of sensors are installed, in case hydrogen leakage occurs, sensors in the vicinity of the leakage location start to transmit a warning to an access...
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7343782 |
System and method for performing quantifiable release spore testing on bioaerosol detection technologies
A system for testing devices for detecting airborne particulate matter generates a first airflow and a second airflow. The second airflow is filtered to remove ambient airborne particulate matter...
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7310992 |
Device for continuous real-time monitoring of ambient air
The present invention provides a device for continuous real-time monitoring of ambient air. The device includes a receptacle, a liquid supply, and a pressure balancing system. The receptacle...
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7299710 |
Hand-held trace vapor/particle sampling system
A sampling system that contains filter components for collecting and concentrating vapor and particles in high-volume flows. The sample is then vaporized and delivered to a detector at a low-volume...
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7296459 |
Avatar refrigerator, and method for sensing contamination of the same
The present invention discloses a refrigerator for storing foods at a low temperature. An avatar refrigerator and a method for sensing contamination of the same receive measurement values from...
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7249490 |
Isolated gas sensor configuration
A gas sensor assembly detects a constituent in a gaseous stream. The assembly comprises: (a) a mounting surface, (b) a sensor mounted on the mounting surface and sensor capable of generating a...
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7231808 |
Method and apparatus for measuring oxygen content
A method and apparatus for measuring the oxygen content in a closed target space, particularly for monitoring inertization levels in an inert gas device for fire prevention and/or fire...
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7208123 |
Molecular contamination monitoring system and method
A flow-through monitor for detecting molecular contamination (MC) within a fluid flow. The monitor has a diffusion chamber having an inlet port and an outlet port, and a structure for supporting a...
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7204125 |
Pressure activated sampling system
Screening of items for the presence of contaminants, such as explosives residue, is accomplished by subjecting an item loaded into a pressure chamber to a pressure substantially in excess of...
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7201036 |
Residual life indicating system
A residual life indicating system for a filter includes a main filter, a sampling filter, and a sensor. Both the main filter and the sampling filter receive an ambient gas meant to be filtered. The...
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7188538 |
Hazardous material detector for detecting hazardous material in a mailstream
The invention disclosed herein relates generally to mailpieces and more particularly, a hazardous material detector for detecting hazardous material in a mail stream. The present invention is...
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7183115 |
Gas sample analysis system
A gas analyzer system for analyzing samples of compressed or ambient gas such as breathing air within a scuba tank, SCBA or ambient air within an industrial plant and informing the user as to the...
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7178381 |
Portable gas detector
The invention provides a portable gas detector which is equipped with filters for removal of interfering gases, high in convenience for use, easy to exchange the filters, and easy to confirm the...
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7174766 |
Calibration device for carbon dioxide sensor
A self-calibrating carbon dioxide sensor that includes a carbon dioxide detector and a carbon dioxide gas generator. In some embodiments, the carbon dioxide gas generator includes a heating element...
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7132294 |
Functionalized small molecules for use in chemical sensors
The invention provides a device for selective molecular recognition, the device comprising a sensing portion, wherein said sensing portion includes a substrate having coated thereon a layer...
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7122065 |
Adapter for low volume air sampler
An adapter for use with a low volume PUF sampler is described. The adapter is affixed over the open end of a PUF (polyurethane foam) sample cartridge. Sample tubing is affixed to an aperture in the...
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7114325 |
Control system with a sensor
An improved engine control system using a NOx sensor is disclosed. In one example, the NOx sensor structure and/or signals are modified to improve distance transmission of NOx sensor output signals...
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7100424 |
Apparatus for accessing container security threats and method of use
A system and method for accessing the security threat of a cargo container by sampling the air contained therein. The system is capable of analyzing the air disposed within the container for...
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7086283 |
Explosion-proof portable gas detector
The invention provides an explosion-proof portable gas detector that is easy to be fabricated as a small-sized one handy to carry and high in convenience for use, and has explosion-proofness...
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7080544 |
Apparatus system and method for gas well site monitoring
A System and a Method of initializing and using that system are described in various embodiments all suitable for use remotely monitoring gas escapes on oil or gas well-sites, particularly as early...
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7001444 |
Automated dust control method
An automated method for suppressing fugitive dust dissemination is disclosed. The method provides for automated measurement of dust levels at remote locations, transmission of the measurements to a...
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6931913 |
Chemical agent detector
A chemical agent detector utilizing surface acoustic wave (SAW) sensors for detecting the presence of a multitude of chemical agents by sampling ambient air is provided. A pressure-differential...
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6915678 |
Ozone sensor operating according to the work function measurement principle
An ozone sensor has an ozone-sensitive layer containing an ozone-sensitive material which is encapsulated in a polymer or in a polymer mixture or is coated by at least one polymer or polymer...
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6853924 |
Diffusion status prediction method and diffusion status prediction system for diffused substance
A diffusion status prediction method and system for a diffused substance are disclosed. The diffused substance is replaced by particles, and positions which the particles generated from an emission...
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6823727 |
DEVICE HAVING A SENSOR ARRANGEMENT FOR DETERMINING THE AMBIENT-AIR QUALITY AND AN ARRANGEMENT OF OZONE SENSORS UPSTREAM AND DOWNSTREAM OF A RADIATOR WHICH IS COATED WITH A CATALYST MATERIAL, AND METHOD FOR OPERATING A DEVICE OF THIS TYPE
Device, in particular for use in a motor vehicle, having a sensor arrangement ( 21 ), which controls an air-conditioning unit, for determining the ambient-air quality, and an arrangement of ozone...
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6744373 |
Portable gas alarm device
Disclosed is a portable gas alarm device easy to be fabricated as a small-sized one handy to carry and high in convenience for use. The portable gas alarm device comprises a gas alarm device body...
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6701772 |
Chemical or biological attack detection and mitigation system
Systems and methods for monitoring buildings to detect harmful chemical or biological agents. Self-propelled harmful agent detectors are provided that can propel themselves using motors and...
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6658917 |
Air-sampling carrier, apparatus and method for analyzing air in a semiconductor process tool
An air-sampling carrier for sampling air from a clean room of a semiconductor processing facility, an apparatus and a method for analyzing the air, wherein the air-sampling carrier includes a...
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6619143 |
Combined particle vapor sampler
An method of, and an apparatus for, collecting a sample of a substance of interest, utilizes an apparatus having a device for collecting a vapor sample and a device for retaining a substrate. A...
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6619103 |
Sample flow path assembly for electronic gas leak detectors
A gas detector having a sample flow path assembly capable of providing a sample air flow rate to a sensing device in excess of about 300 SCCM. The sample flow path assembly also provides the gas...
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6606899 |
Total impurity monitor for gases
A device for measuring a total concentration of impurities in a sample gas is provided which includes a housing having an inlet to allow the sample gas to enter the housing, an emitter to generate...
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6567157 |
Fast mixing condensation nucleus counter
A fast mixing condensation nucleus counter useful for detecting particles entrained in a sample gas stream is provided. The fast mixing condensation nucleus counter comprises a detector and a...
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6530287 |
Alpha-environmental continuous air monitor inlet
A wind deceleration and protective shroud that provides representative samples of ambient aerosols to an environmental continuous air monitor (ECAM) has a cylindrical enclosure mounted to an input...
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6477906 |
Automatic multi-sorbent tube air sampler
A sampling system for capturing samples of trace elements in ambient air comprises a multi-port valve coupled to a plurality of sorbent tubes. Each tube is connected to the multi-port valve by...
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6475439 |
Sealed replaceable sensor
A gas detector having a sealed sensor assembly is only exposed to the ambient atmosphere when the detector is to be placed in the service. The detector is placed in the service by removing an...
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6444473 |
Atmospheric ozone concentration detector
An ozone detector in the form of two basic embodiments which can measure ozone concentration in ambient air at 0.001-1 ppm. The first embodiment includes a stretched elastic material and a standard...
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6433694 |
Sensor having improved desorption times and related control circuitry
A sensor and method for rapidly determining the absence of a vapor in a gas or fluid is described as well as a method for constructing the sensor. The sensor comprises a resistive element having...
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6295864 |
Analysis system and method for water-soluble contaminants in a cleanroom environment
An analysis system and method for a cleanroom environment is disclosed wherein on-line testing of water-soluble contaminants is performed by condensing water vapor from an air sample taken from the...
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6289715 |
System for analyzing the atmosphere in an enclosure for soldering or tinning by means of a metal alloy
A system for analyzing a content of at least one element of a contained atmosphere for soldering or tinning with a metal alloy, comprising: at least one sampling line for taking a gas sample...
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6276192 |
Gas detecting sensor and device for controlling ventilation systems
There are provided with a gas detecting sensor and a gas detecting device for controlling a ventilation system of a vehicle using the gas detecting sensor. The gas detecting sensor of the present...
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6202472 |
Gas sensor with flashback barrier
An explosion-proof gas sensor (1) with a flashback barrier (2) permeable to the gas to be measured between the measuring space (4) and the environment in an otherwise gas-impermeable housing (3) is...
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6114964 |
Systems and methods for fenceline air monitoring of airborne hazardous materials
The invention provides systems for perimeter air quality monitoring that can establish background levels of target contaminants in ambient air prior to initiation of remedial activities. The...
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6104299 |
Device for monitoring pollution caused by motor vehicles in an urban area
Apparatus for monitoring pollution generated by motor vehicles in an urban area, said area being equipped with a plurality of items of street furniture, each of which is provided with data...
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6053030 |
Instrument information and identification system and method
The present invention is an instrument identification system and method for a confined space gas detector used to assure user safety conditions or to collect gas concentration and gas type data at...
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6051189 |
System and method for detection, identification and monitoring of submicron-sized particles
A system and method for detection, identification, and monitoring of submicron sized particles, the method including the steps of collecting a sample, extracting existing submicron particles from...
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6033630 |
Method and sensor for detecting volatile enantiomeric substances in gases
A method and sensor for distinguishing between different optical isomers (enantiomers), which sensor comprises a pair of spaced-apart contacts and a semi-conductive polymer material spanning the...
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6033459 |
Gas collection apparatus, gas analyzing apparatus using the same and gas analyzing method
In a denuder (2) serving as a gas collection apparatus, an absorption liquid supply tube (4) for spraying absorption liquid from a nozzle (4a) to the inner wall of a denuder pipe (2a) is provided...
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