FTIR Motor Exhaust Gas Analyzer (MEXA-6000FT-E)

  • MEXA-6000FT-E series measures concentrations of multiple gaseous species in the engine exhaust using the Fourier Transform infrared (FTIR) method in combination with a multivariate analysis algorithm.

  • It applies to various applications, such as evaluation of nitrogen components in catalyst development. The new MEXA-6000FT-E meets the NH3 testing requirements for the next EU regulation for heavy duty emission, Euro (draft), and measures NH3 and 30 other non-regulated emission species, simultaneously.

  • Fourier transform infrared spectrometry (FTIR) is a method for obtaining infrared absorption spectrum of high resolution by a combination of an interferometer and high speed Fourier transformation. Since lots of components have their unique spectrum in the infrared region, this method is used for quantitative and qualitative determination in various fields.

  • Infrared light radiated from a light source becomes an interference light, passes through the cell in which sample gas is flowing, and then enters the detector. The spectrum of the infrared light that pass the cell can be obtained by converting the signal obtained here by means of fast Fourier transformation.

  • For qualitative and quantitative analysis, the power spectrum in a case where a zero gas is flowing in the cell is separately measure, and the infrared absorption spectrum for the sample gas is calculated from the proportion of the both spectra.

  • The spectrum obtained is the superposition of spectra of multiple components that show absorbance in the mid infrared region.


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Equipment 1

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Equipment 2

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Contact person

Dr Avinash K Agarwal, FSAE, FASME
Department of Mechanical Engineering
Indian Institute of Technology Kanpur
Kanpur-208016 India
Home Page: www.iitk.ac.in/erl
Tel: +91 512 2597982 (Off)    +91 512 2598682 (Res)
Fax: +91 512 2597982, 2597408 (Off)

  • Unregulated emission measurements for gasoline and diesel vehicle applications.

  • Simultaneous concentration measurement of various engine emission  species.

  • Emission measurement according to the modern Bharat stage emission regulations. With the facility of NH3 measurement, it can also be used for the NH3 slip measurement in the SCR catalyst.

  • Exhaust gas after-treatment technology development

  • DOC and DPF effectiveness measurements

  • Environmental impact assessment of alternative fuels.

Unregulated emission measurements, FTIR, NH3, Alternative fuels, Tail-pipe emissions.

Engine Research LaboratoryDepartment of Mechanical EngineeringIIT Kanpur, Kanpur-208016Tel: +91 512 2597458 (Lab)

Engine Research Laboratory, IIT Kanpur

Contact Prof. Avinash Kumar Agarwal

Contact Prof. Avinash Kumar Agarwal

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