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thermal detectors

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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
... devices and thermal devices. The response of the photon-effect devices depends on the wavelength of the received radiation; therefore, the output signal depends on the wavelength of the infrared signal. Thermal detectors respond only to the heating caused by the incoming radiation, and the output signal...
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...
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...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006659
EISBN: 978-1-62708-213-6
..., and detector. Common GC detectors are the thermal conductivity cell detector, flame ionization detector, electron capture detector, sulfur chemiluminescence detector, and nitrogen-phosphorus detector. gas chromatography detectors gas chromatography Overview CHROMATOGRAPHY is about separating...
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
... to the nature of the thermal phenomena. These include the wavelength range, sensitivity, frame rate, and integration time. The sensitivity of a thermal detector is rated by its noise-equivalent temperature difference (NETD). This metric is the temperature difference between the target and the sensor...
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.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 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 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
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006642
EISBN: 978-1-62708-213-6
... as a few minutes. In PGAA at a reactor, the experimental setup can be such that the sample is placed in the reactor thermal column, with the emitted γ-rays being observed through a collimator by a detector located outside the reactor shield ( Ref 31 ). More commonly, a neutron beam can be extracted...
Image
Published: 01 December 2004
the cathode ray tube beam is deflected proportionally to the detector signal) allows control of the depth of thermal etching. 4000×. (d) Decay of nickel fibers in a silver matrix of an electrical conduction material produced by the drawing of bundled, coated rods. During annealing at 900 °C (1650 °F) for 5 h More
Image
Published: 01 January 1986
; 11, dust filter; 12, heated rare earth copper oxide; 13, Mg(ClO 4 ) 2 desiccant; 14, silica gel column; 15, thermal conductive detector/readout; 16, flow rotameter More
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001748
EISBN: 978-1-62708-178-8
... or cadmium. The γ-ray energies may range as high as 10 or 11 MeV, necessitating use of a detector having reasonably good efficiency at such energies. In PGAA at a reactor the counting arrangement can be such that the sample is placed in the reactor thermal column, with the emitted γ-rays being observed...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005925
EISBN: 978-1-62708-166-5
... on temperature control systems, including contact sensors, noncontact sensors, controllers, energy-flow regulators, measurement instruments, and set-point programmers. Common contact sensors include temperature scales, thermocouples, and resistance temperature detectors, whereas optical pyrometers and on-line...
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...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001749
EISBN: 978-1-62708-178-8
... alpha and beta-particle emission, positron emission, and gamma and x-ray emission. It compares and contrasts measurement techniques based on various detectors, namely, charged-particle detectors, photon detectors, counting and recording instruments, and radioactive decay spectrometers. It also addresses...
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
... copper oxide; 13, Mg(ClO 4 ) 2 desiccant; 14, silica gel column; 15, thermal conductive detector/readout; 16, flow rotameter Fig. 5 Insert gas fusion system for detecting nitrogen and oxygen. 1, Helium supply; 2, two-stage pressure regulator; 3, NaOH-impregnated clay; 4, Mg(ClO 4 ) 2...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006432
EISBN: 978-1-62708-192-4
... or inductive sensors, mainly use a change in length or distance as an indicator for wear. Such measurements give a good feedback about changes occurring in wear behavior, but exact quantification is limited by thermal, plastic, or elastic elongations, as well as by the presence of a lubricant or particles...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006656
EISBN: 978-1-62708-213-6
...Abstract Abstract This article discusses various concepts of micro x-ray diffraction (XRD) used for the examination of materials in situ. The discussion covers the principles, equipment used, sample preparation procedure, considerations for calibrating a detector, steps for performing data...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001765
EISBN: 978-1-62708-178-8
...-crystal neutron diffraction technique, and provides examples of the applications of neutron diffraction. crystallographic texture grain size neutron diffraction neutron powder diffraction residual stress single-crystal neutron diffraction Overview Introduction The thermal neutron...