MICRO SPEC :

A MINIATURE CONCENTRATION TRANSDUCER

IN-LINE INFRARED SENSORS

COVERING THE MID INFRARED FROM 2 TO 14 um (5000 to 700 cm-1)

The MicroSpec is a new type of Mid Infra Red (MIR) transducer in which the absorption is measured directly in stream, and the concentration converted into a 4-20mA output. Organic functional groups have characteristic absorption bands in the MIR spectral region. Absorption bands associated with individual components in a mixture are frequently isolated from other bands and can be used to quantify the individual components by the strength of their absorption. Calibration data in the MIR is generic and is readily transferable instrument to instrument. The difficulties of MIR spectroscopy include; The available energy decreases with wavelength, transmitting materials are expensive and less chemically resistant. Hence, optical fibers for the MIR region are very expensive and difficult to manipulate. Most material are strongly absorbing in the MIR and therefore cells with extremely short effective path lengths (10 to 100mm) must be used. Due to the MicroSpec unique design, these difficulties are overcome. For liquids and emulsions, ATR technique solves the problem of high absorbencies in the MIR. Since fiber optics at this wavelength range are expansive the sensor is design for direct in stream measurements transmitting only a 4-20mA signal proportional to the concentration readings.

The MicroSpec contains an IR absorption sensor that consists of a source of infrared radiation, single or dual pyroelectric detector with a filter window for each detector element that isolates a specific IR wavelength, a thermistor to measure temperature and an optical element that creates infrared absorption by means of attenuated total reflection (ATR). The disassembled MicroSpec is shown above. An integral electronic package converts a DC voltage input into a pulsed signal to operate the source and amplifies and digitizes the detector output for transmission of a 4-20mA output.

APPLICATIONS

• Measuring soot levels in lube oils
• Monitoring the nutrient and CO2 levels in fermentation broths
• Measuring dissolved CO and CO2 in liquid streams
• End Point determination in polymetization reactors
• D2O in H2O and vice versa
• Percent water in detergent concentrates
• MTBE and Ethynol concentrations in gasoline
• Citric Acid and glucose in the food industry

FEATURES

• Makes in line quantitative measurements at selected wavelengths
• Contains no moving parts and functions in process stream environments
• Replaces spectrometers in the process plant and eliminates the need for optical fibers

분광광도계, 분광계, 화학플랜트, 제약, 제지, 석유, 황화수소분석기, 잔류가스분석기, 스펙트로포토메타, 염소분석기, 자외선, 가시광선, 근적외선, 다이오드 어레이, 암모니아분석기, 벤젠분석기, 나프탈렌분석기, 방향족 분석기, 염기산화물분석기, 금속이온분석기, 바나듐분석기, 구리이온분석기, 수소분석기, 황산화물분석기, 색상분석기, 톨루엔분석기, 코발트분석기, CIP분석기, MEG분석기, 페놀분석기, 광화이버 스펙트로메타, 샘플링시스템, 벤젠, 자일렌, 발전소, 소각로, Applied Analytics, Process analyzers, On-line composition monitors, Process stream, Gas, liquid,  Hydrogen sulfide analyzer, Tail gas analyzer for the Claus sulfur recovery process, UV / VIS / NIR Diode array spectrophotometer, Chlorine analyzer, Ammonia analyzer, Aromatics analyzer, chlorine dioxide analyzer, Metal ions analyzer, MEG analyzer,  TiCl4 , vanadium analyzer, CIP analyzer, Copper ions analyzer, Hydrogen analyzer, Sulfur dioxide analyzer, TBC analyzer, Color analyzer, Fiber optic spectrometers, Sampling systems, Cl2, BTX, Benzene, Toluene, Xylene, MEHQ, NH3, Multi Components, Concentration monitoring, On-line, Continuous measurements, Cobalt recovery, Sulfur recovery, Air demand, Ammonia slip, power plant, SO2, COS, CS2, Sulfur, H2S, NCl3, ClO2, O3