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Brimrose NIR Analyzer

2009-02-22T20:55:00.000-08:00

A new series of miniature near-infrared (NIR) spectrometers is said to offer a cost-effective tool for inspecting incoming raw materials and product quality control. Compact, battery-powered Model 5030 ATOF-NIR Portable Analyzer from Brimrose Corp. of America, Baltimore, allows laboratory tests to be performed anywhere in a plant environment. The instrument, which sells for $28,000 (compared with $40,000 for larger units), is reportedly insensitive to ambient light, vibration, dust, and dirt. Its design allows for quick switchover from solids to liquids, and results appear instantly on its LCD. Applications include material identification or measurement of moisture content and active-ingredient levels. Once the instrument is calibrated, it reportedly can be used by an inexperienced operator.

INFRARED ANALYZER

2009-02-22T09:32:00.001-08:00

The above diagram provides a graphic representation of the basic design of an infrared analyzer which is used to measure breath alcohol concentrations. The design is based on the fact that specific wavelengths of infrared energy are absorbed by ethyl alcohol molecules. In its simplest form, the instrument's detector measures the change in the amount of a specific wavelength of infrared energy that passes from the infrared source (lamp), through the sample chamber and filter wheel to the detector. The change in response on the detector, as a breath sample is submitted to the sample chamber , is monitored and analyzed by a processor in the instrument. The change in the signal is used to calculate an alcohol concentrationThe difference between the amount of infrared energy that reaches the detector when the sample chamber is free of compounds that absorb the infrared energy and the amount of infrared energy that reaches the detector when a subject's breath sample is within the sample chamber, provides an indication of the concentration of the absorbing substances in the sample . If ethanol was the only molecule found in a breath sample that would absorb energy at the wavelength being recorded by the detector, the calculated difference in infrared energy reaching the detector could be used by itself to establish the concentration of alcohol in the breath sample. Unfortunately this is not always the case.In order to deal with the lack of specificity, it is important that the primary wavelength of infrared energy used to measure the concentration of alcohol is selected based upon its limited cross sensitivity to other substances that are commonly found in the human breath. The spinning filter wheel in the diagram above is used to modulate the light through several different filters allowing different wavelengths of infrared energy to be transmitted to the detector for analysis. The secondary wavelengths of energy are selected based upon the interfering compounds that could be found in a human breath sample. If these compounds are identified and are in concentrations that would adversely effect the calculated ethanol result, the analysis can be aborted.One other important point is that the differing concentrations of alcohol or other energy absorbing compounds found in the subject's breath sample are not in a one to one relationship with the amount of energy that reaches the detector. In other words, a .050 alcohol concentration may absorb X units of infrared energy, but a .200 will not absorb 4X units of infrared energy. This inherent non-linearity can be overcome by performing a multi-point calibration. To ensure that the instrument is properly quantifying alcohol and the other substances, it would be prudent to perform multi-point accuracy checks for each substance of interest and ensure proper calibration over the entire range of substances and concentrations.Finally, infrared systems require power to light the IR source, heat the sample chamber, power the light modulator and drive the detector and associated circuits. Historically, the signal from the detector has been small relative to the noise generated in the system. This has made it difficult to resolve changes in the signal when low level concentrations of alcohol are presented to the system. To solve this problem, several manufacturers have included cooled detectors. These systems require additional power, but the cooled detector decreases the noise on the detector and enhances the instrument's performance at the low alcohol

H2s Analyzer Suppliers

2009-02-22T09:30:00.000-08:00

H2S Analyzer is a UV-VIS diode array process spectrophotometer, which contains no moving parts. It is designed to address on-line applications that require fast, reliable and maintenance-free monitoring of concentrations, including both single- & multi-components. H2S analyzer operates at high pressure to simplify the sampling system.

Analyzers Network Spectrum Analyzer Accessories

2009-02-22T09:28:00.000-08:00

There are a wide range of Network/Spectrum Analyzer Accessories that are associated with these instruments. Some are internal to the instrument and others are external components. Network/Spectrum Analyzer Accessories also include a wide range of optional and external active and passive components such as directional couplers, bridges, cables, down-converters, amplifiers, attenuators, terminations, and other unique test fixtures.

Gas Analysis System

2009-02-22T09:25:00.000-08:00

Conditioning Systems
Every kind of gas analysis, either fairly straight forward single component analysis or complex multi component process gas analysis require application specific sample gas conditioning systems. These systems must deliver continuously reliable process data even under varying ambient and/ or process conditions.
It is quite obvious, that stack testing has other requirements than engine emission testing, EPA methods testing or process applications in the food industry just to name a few.
Bühler delivers modular designed prefabricated systems as mobile or stationary stand alone or 19” rack mount solutions and assists in planning application specific gas analysis systems on panels, in cubicles or analyser shelter.

Sample Gas Conditioning System SCS 19

Complete system for 19" rack
One or two gas streams
Modular design
Probe and cal gas controller

Conditioning SystemsEvery kind of gas analysis, either fairly straight forward single component analysis or complex multi component process gas analysis require application specific sample gas conditioning systems. These systems must deliver continuously reliable process data even under varying ambient and/ or process conditions.It is quite obvious, that stack testing has other requirements than engine emission testing, EPA methods testing or process applications in the food industry just to name a few.Bühler delivers modular designed prefabricated systems as mobile or stationary stand alone or 19” rack mount solutions and assists in planning application specific gas analysis systems on panels, in cubicles or analyser shelter.Sample Gas Conditioning System SCS 19Complete system for 19" rackOne or two gas streamsModular designProbe and cal gas controller

Wireless WAN Solutions

2009-02-22T09:21:00.000-08:00

Extend your network infrastructure with long rangeoutdoor wireless Ethernet connectionsTrango's long range fixed wireless broadband Ethernet equipment is ideal for all types of wireless wide area network (WWAN) and wireless local area network (WLAN) applications. Trango outdoor wireless networking solutions allow you to quickly, easily, and cost effectively deploy reliable, high-speed, secure wireless IP connections between multiple remote locations at distances up to 45+ miles, and enable you to eliminate your costly leased lines and avoid expensive time consuming fiber trenching.Wireless WAN ApplicationsWireless WAN applications are endless for Trango long-range wireless Ethernet bridges. For example, a business may need to link its IT infrastructure to a few outlying buildings; a university or any school may need to provide internet access to dormitories or other buildings across campus; or a hospital may need to establish a secure link to a clinic across town so that doctors may securely exchange patient information over a high-speed connection.Whether you need to a network connection across the street, across town, or from urban to rural areas, Trango wireless WAN/LAN building-to-building outdoor networks are ideal for any private enterprise or network operator that requires high-speed connectivity between two or more remote locations. Trango long range wireless wide area network (WWAN) solutions are well suited for a wide variety of industries and applications because they deliver high-capacity bandwidth, are extremely reliable, highly secure, and can be established with minimal effort and cost.Licensed Point-to-Point Wireless WAN Radios* TrangoLINK Giga® is a split-architecture (ODU/IDU) full duplex RF microwave system link that is both native Ethernet and native-TDM.* TrangoLINK® Apex is an all-outdoor full duplex RF microwave radio that is native-Ethernet for 100% IP traffic.* ATLAS 4900™ is an all-outdoor native Ethernet OFDM 4.9 GHz wireless bridge that operates in the licensed Public Safety band.Unlicensed Point-to-Point Wireless WAN Radios* TrangoLINK-45™ is an all-outdoor, native Ethernet, multi-band OFDM wireless Ethernet bridge that is capable of operation in 4 different 5 GHz bands (5.2, 5.3, 5.4, 5.8 GHz).* TrangoLINK-10™ is an all-outdoor, native Ethernet 5.8 GHz wireless bridge.Unlicensed Point-to-MultiPoint Wireless WAN RadiosFor delivering point-to-multipoint (PtMP) broadband access wireless WAN connectivity from a central office to many remote offices, Trango offers these robust solutions.* Access5830™ System 5.8 GHz broadband wireless access system delivers up to 10 Mbps up to 18 miles.* Trango M2400S™ 2.4 GHz broadband wireless access system delivers up to 5 Mbps up to 25 miles.* Trango M900S™ 900 MHz broadband wireless access system delivers up to 3 Mbps up to 20 miles.

Brimrose NIR Analyzer

2009-02-20T06:03:00.000-08:00