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UNISEARCH ASSOCIATES INC. was founded in 1980, as an R&D and specialty Instrument Company. It pioneered and became world-leaders in the use of Tunable Diode Laser Absorption Spectroscopy (TDLAS) for air measurements; a position which it still enjoys today.Unisearch introduced its LasIR system of instruments in 1994. These instruments extend our TDLAS technology to the use of telecommunication Tunable Diode Lasers. Applications include air quality measurements, fence-line monitoring, CEM and process control. Systems have been installed around the world.The company developed an improved Differential Absorption Spectrometer (DOAS) system for measuring criteria and other important pollutants. In 1995, the technology was licenced to Thermo Environmental Instruments which is now manufacturing and marketing this instrument through its worldwide agent network.In 1995, UNISEARCH acquired advanced FTIR technology from Radian Corporation and opened its Austin TX plant to manufacture FTIR instruments. A number of systems have been developed and installed for fence-line monitoring, and for extractive CEM and process control.The company also developed the patented Luminox line of instruments based on a novel, surface chemiluminescence technique. These instruments are lightweight, battery-operated and highly sensitive and are used to measure NO2, NO, NOy, O3 and PAN.UNISEARCH maintains a strong R&D focus to retain its leadership in existing products and to develop new product lines. Contract research programs are conducted to meet specific needs of Governmental and Industrial clients. The Company offers Measurement Services. Industrial and Government clients have used our well-equipped mobile laboratories, as well as air-born platforms, in a number of measurement programs.UNISEARCH”s full staff of installation and service experts complements our worldwide sales representative network.

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產品簡介在線詢價

The LasIR is based on the absorption of light in the near infrared region of the spectrum.

TDLAS 可調半導體激光氣體探測儀產品詳情

principle of operationthe lasir is based on the absorption of light in the near infrared region of the spectrum. what is unique to the lasir is its very special light source, called a tunable diode laser. these tiny devices are similar to the solid state lasers used in ecommunication and in consumer products such as laser printers and compact disc players. laser diodes can be se-lected which are unique to a particular gas ensuring that the measurement is free from interferences from any other gas or particle.

gases that can be measured with the lasir include: hf, hcl, hbr, hi, hcn, co, co2, ch4, c2h2, c2h4, c2h6, c3h8, ch2chcl, no, no2, nh3, h2s, h2o, o2 ,d2o, hod

industries that are using these systems include:

*aluminium*	*semiconductor*	*power generation*	*specialty gases*	*natural gas*
?b>petrochemical	*landfills*	*oil refineries*	*combustion*	*geothermal*
*incinerators*	*sewage and waste treatment*	*pulp and paper*	*auto-exhaust*	*cement*
*glass*	*fertilizer*		*steel*

main advantages

no interferences from other gases: tdlas technology provides the most interference free method of any analytical technique.
no interference from particles: measurements of gas concentrations are unaffected by the presence of particles, including rain and snow.
fast time response: measurements can be made in less than 1 second if desired.
high sensitivity: sensitivities down to and below 1 ppbv depending on the path length
fiber optic link for remote control: permits the instrument to be located long distances from the measurement point
cost effective: multiplexing of fiber optic cables permit simultaneous measurement at a number of locations with the same instrument
long paths lengths: up to 1 kilometer
easy to install and rugged, maintenance-free operation
can cover a broad range of concentrations

熱門產品

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可燃性氣體檢測儀品牌	面議	深圳市	深圳市逸云天電子有限公司	2025-03-09	在線詢價
可燃性氣體檢測儀天然氣探測器消防認證	面議	鄭州市	河南馳誠電氣股份有限公司	2024-09-27	在線詢價
便攜式泵吸型可燃性氣體檢測報警儀/便攜式可燃氣體檢測儀	面議	北京市	北京亞歐德鵬科技有限公司	2018-03-22	在線詢價
數字式高濃度氣體檢測儀可燃性氣體檢測儀便攜式可燃氣體檢測儀	面議	北京市	北京同德創(chuàng)業(yè)科技有限公司	2023-09-25	在線詢價
新宇宙XP-311II可燃性氣體檢測儀，XP-311II可燃氣體檢測儀	面議	深圳市	深圳市時代之峰科技有限公司	2021-03-20	在線詢價
可燃性氣體檢測儀	面議		廈門欣銳儀器儀表有限公司	2017-07-26	在線詢價

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