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infrared detectors

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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
.... It then describes infrared detectors, such as quantum detectors and thermal/nonquantum detectors, for thermoelastic stress analysis. The article discusses the theoretical aspects for producing thermoelastic stress analysis data and the applications amenable to thermoelastic stress analysis. It concludes...
Image
Published: 01 January 1986
, sample holding chamber; 12, electrode (impulse) furnace; 13, dust filter; 14, heated rare earth copper oxide; 15, flow control; 16, infrared detector/readout; 17, thermal-conductive detector/readout More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003239
EISBN: 978-1-62708-199-3
.... These include night-vision devices and vidicon systems with silicon or lead sulfide sensors. Silicon sensors provide sensitivity for temperatures above 425 °C (800 °F), while lead sulfide sensors respond to temperatures above 200 °C (400 °F). There are two basic types of infrared detectors: photon-effect...
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
...Abstract Abstract Infrared (IR) spectra have been produced by transmission, that is, transmitting light through the sample, measuring the light intensity at the detector, and comparing it to the intensity obtained with no sample in the beam, all as a function of the infrared wavelength...
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
... compounds formed in the combustion zone. The article provides information on infrared and thermal-conductive detectors, which are used for the detection of CO2 and SO2. Finally, it addresses the requirements of a sample to undergo total and selective combustion, and presents examples showing...
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
... desiccant; 5, flow restrictor; 6, flow meter; 7, pressure regulator; 8, needle valve; 9, gas doser (optional); 10, flow manifold; 11, sample holding chamber; 12, electrode (impulse) furnace; 13, dust filter; 14, heated rare earth copper oxide; 15, flow control; 16, infrared detector/readout; 17, thermal...
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
... through the sample, measuring the light intensity at the detector, and comparing it to the intensity obtained with no sample in the beam, all as a function of the infrared wavelength. Techniques such as attenuated total reflectance, diffuse reflectance, specular reflectance, reflection-absorption...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005853
EISBN: 978-1-62708-167-2
.... This is the advantage of an IR thermometer: it can measure temperatures as low as –50 °C (–50 °F), and it can work 24 hours a day without a break. To measure IR energy requires a detector. Infrared thermometers use two basic types of detectors: thermal or quantum. A thermal detector is actually heated or cooled...
Book Chapter

Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006685
EISBN: 978-1-62708-213-6
.... This frequency region, particularly below 200 cm −1 , is not accessible with infrared detectors. Such low-frequency data are important in the complete vibrational analysis of surface species, especially for investigations of the nature of the chemical interaction of a surface species with the underlying surface...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001736
EISBN: 978-1-62708-178-8
... as close to the Rayleigh line as 10 cm −1 with conventional instrumentation. This frequency region, particularly below 200 cm −1 , is not accessible with infrared detectors. Such low-frequency data are important in the complete vibrational analysis of surface species, especially for investigations...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001090
EISBN: 978-1-62708-162-7
... several germanium lenses, a germanium window, and a color-correcting lens made from a Ge-Sb-Se glass, a Ge-As-Se glass, or ZnSe. Some of the viewers also utilize a germanium infrared detector. The U.S. government was so impressed with the importance of germanium for infrared applications...
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 Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005685
EISBN: 978-1-62708-198-6
... the at-rest and excited vibrational states. The wavelengths that are absorbed by the sample are characteristic of its molecular structure. The FTIR spectrometer uses an interferometer to modulate the wavelength from a broadband infrared source. A detector measures the intensity of transmitted or reflected...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003229
EISBN: 978-1-62708-199-3
... at pressure through acoustic method and bubble testing. The article gives a short note on types of leak detectors, sulfur hexafluoride detectors and mass-spectrometer. It tabulates the pressure and vacuum system leak-testing methods and discusses the application of gas detectors in leak testing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003199
EISBN: 978-1-62708-199-3
.... Functions in an integrated digital process management system are shown in the dashed blocks. Temperature Sensors Thermocouples and resistance temperature detectors (also known as resistance thermometers) are the most important contact-type electrical temperature sensors used in the metals industry...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006564
EISBN: 978-1-62708-290-7
...-infrared Midwave infrared Long-wave infrared Detector Complementary metal oxide semiconductor InSb Strained-layer superlattice Spectral range, μm 0.4–1.0 1.5–5.0 7.5–12 Well capacity, million electrons 30 11 7.2 Frame rate, frames/second 100–26,000 (a) 500–29,000 (a) 125...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001777
EISBN: 978-1-62708-178-8
..., these systems arc expensive, and more developmental work is required to optimize the performance of the LC/MS interface. Many detectors based on other solute properties (for example, infrared absorbance, conductivity, and radioactivity) have been reported for use in LC. Detectors based on bulk properties...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001398
EISBN: 978-1-62708-173-3
... in terms of thermal mass, emissivity, contamination, presence of internal thermal barriers, and heat-sinking efficiency, an infrared (IR) detector was added to create an “intelligent” laser soldering system. This system enables the precise control of heat input to the joint, because the IR “eye...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006678
EISBN: 978-1-62708-213-6
.... The furnace is heated to 1370 to 1425 °C (2500 to 2600 °F), causing combustion of the carbon and sulfur in the sample to form CO, CO 2 , and SO 2 . The gases are separated and analyzed by infrared absorption or thermal conductivity detectors. A heated catalyst is used to convert the CO to CO 2 prior...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003250
EISBN: 978-1-62708-199-3
... a series of traps, absorbers, and converters to separate them and remove interfering elements. They are then quantified using detectors based on either thermal conductivity or absorption of infrared light. In the case of inert gas fusion for oxygen, nitrogen, or hydrogen, the sample is heated by either...