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infrared analyzers

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Published: 30 September 2014
Fig. 12 Components of a positive-filtering infrared analyzer for measuring carbon monoxide, carbon dioxide, and methane contents of an atmosphere More
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Published: 30 September 2014
Fig. 13 Components of a negative-filtering infrared analyzer for measuring carbon monoxide, carbon dioxide, and methane contents of an atmosphere More
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Published: 30 September 2014
Fig. 14 Components of a solid-state detector infrared analyzer for measuring carbon monoxide, carbon dioxide, and methane contents of an atmosphere More
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Published: 01 January 2006
Fig. 24 Schematic diagram of a portable infrared analyzer. Source: Ref 2 More
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Published: 01 December 1998
Fig. 7 Elements of a positive-filtering infrared analyzer for measuring CO, CO 2 , and methane contents of an atmosphere More
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005928
EISBN: 978-1-62708-166-5
..., chromatographs, oxygen probes, Orsat analyzers, infrared analyzers, dewpoint analyzers, and hot-wire analyzers. Finally, it discusses the advantages, disadvantages, and limitations of these analyzers. atmosphere control carbon potential dew point gas chromatography heat treating furnaces heat...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003199
EISBN: 978-1-62708-199-3
... ) levels. Dew point control also analyzes a drawn sample external to the furnace. These control devices can effectively control endothermic, exothermic, nitrogen-methanol, nitrogen-hydrocarbon, and nitrogen-hydrogen-type atmospheres. Infrared control is most often utilized for endothermic...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001747
EISBN: 978-1-62708-178-8
... carrier gas. This article describes the operating principles and sample selection of inert gas fusion. It explains the mechanisms involved in the introduction of fusion gas, separation and detection of fusion gas by thermal-conductive and infrared detection methods. Additionally, the article explains...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003710
EISBN: 978-1-62708-182-5
... Abstract This article describes the analytical methods for analyzing surfaces for corrosion and corrosion inhibition processes as well as failure analysis based on surface structure and chemical identity and composition. The principles and applications of the surface-structure analysis...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006931
EISBN: 978-1-62708-395-9
... the characterization of plastics by infrared and nuclear magnetic resonance spectroscopy, differential scanning calorimetry, differential thermal analysis, thermogravimetric analysis, thermomechanical analysis, and dynamic mechanical analysis. The article also discusses the use of X-ray diffraction for analyzing...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001746
EISBN: 978-1-62708-178-8
... water vapor; this must be removed from the stream of gases. Moisture is normally removed by use of a desiccant, such as magnesium perchlorate (Mg(ClO 4 ) 2 ). When analyzing for sulfur using infrared absorption detection, remaining gases will not cause interference because of the selectivity...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006662
EISBN: 978-1-62708-213-6
... of molecular vibrations, which can be useful in analyzing complicated infrared spectra. Normal-Coordinate Analysis Normal-coordinate analysis begins by describing a molecular structure as a collection of balls and massless springs. This is a reasonable model based on chemical intuition. The balls...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001735
EISBN: 978-1-62708-178-8
... of molecular vibrations has derived mainly from empirical observation. Although of little practical use in materials characterization, normal-coordinate analysis reveals the nature of molecular vibrations, which can be useful in analyzing complicated infrared spectra. Normal-Coordinate Analysis Normal...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0005693
EISBN: 978-1-62708-178-8
... ESCA electron spectroscopy for chemical analysis ESR electron spin resonance EXAFS extended x-ray absorption fine structure FIM field ion microscopy FNAA fast neutron activation analysis FMR ferromagnetic resonance FT-IR Fourier transform infrared...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005685
EISBN: 978-1-62708-198-6
... light as a function of its wavelength. The signal obtained from the detector is an interferogram, which must be analyzed with a computer using Fourier transforms to obtain a single-beam infrared spectrum. The FTIR spectra are usually presented...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006673
EISBN: 978-1-62708-213-6
... the TGA is connected to an evolved gas analyzer (e.g., TGA/mass spectrometry or TGA/ Materials characterization Fourier transform infrared spectroscopy) Thermal stability of related materials Compositional analysis Vacuum TGA Corrosion studies, including oxidation Samples Examples...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006933
EISBN: 978-1-62708-395-9
... sampling techniques, all involving either transmission or reflection of the infrared energy, can be used to analyze the sample material. This allows the evaluation of materials in all forms, including hard solids, powders, liquids, and gases. Depending on the spectrometer and the corresponding accessories...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006451
EISBN: 978-1-62708-190-0
... Abstract Thermoelastic stress analysis (TSA) an increasingly popular infrared (IR)-based technique for measuring stress on the surface of a part subjected to time-varying loads. This article begins by providing a theoretical and historical background of thermoelastic stress analysis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... used to qualitatively identify polymeric materials. Method Several different sampling techniques, all involving either transmission or reflection of the infrared energy, can be used to analyze the sample material. This allows the evaluation of materials in all forms, including hard solids...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006453
EISBN: 978-1-62708-190-0
... nondestructive evaluation (TNDE) methods extract information about the subsurface state of the part from its transient response as it is excited from, or returns to, a quasi-equilibrium state. The modern era of TNDE began in the late 1960s with the invention and commercialization of the infrared (IR) camera...