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Optical Methods Of Measuring Plasma Jet Temperatures Part Iii Interpretation Of Photoelectric Pyrometric Measurements
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Book Synopsis Optical Methods of Measuring Plasma Jet Temperatures. Part III. Interpretation of Photoelectric Pyrometric Measurements by : H. C. Hottel
Download or read book Optical Methods of Measuring Plasma Jet Temperatures. Part III. Interpretation of Photoelectric Pyrometric Measurements written by H. C. Hottel and published by . This book was released on 1963 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: A photoelectric pyrometer has been designed and used to measure the temperature of a one atmosphere argon plasma jet over the range 4000K - 8500K. The jet which was virtually transparent normally was partially opacified with sodium, a non-gray temperature probe, and temperature measurements were based on the application of a non-gray/gray brightness matching theory to a modified two-path optical temperature measuring technique. The pyrometer was designed to detect uniquely the spectral radiation from the added sodium and to match the brightness of this radiation with that of gray radiation, from a calibrated filament. The brightnesses were matched at one cycle-second and observed over the narrow waveband (8A) of an interference filter centered on the D-line doublet of sodium (5890/5896A). The measured temperatures agree to within 1.6% of the enthalpy temperatures calculated from an energy balance over the whole system. (Author).
Book Synopsis Optical Methods of Measuring Plasma Jet Temperatures. Part Ii. Measurement by Photoelectric Pyrometry by : H. C. HOTTEL
Download or read book Optical Methods of Measuring Plasma Jet Temperatures. Part Ii. Measurement by Photoelectric Pyrometry written by H. C. HOTTEL and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of two-path optical pyrometry to measurement of plasma jet temperature was studied from both theoretical and practical aspects. A pyrometer was constructed with its detection system consisting of a selected 1P21 photomultiplier associated with an electronic filter tuned to 1 c. Comparison between the unknown source and a calibrated filament is made at this frequency which is chosen to give optimum signal-to-noise ratio. The transparency of high temperature plasma necessitates the use of an opacifier if the two-path technique is to be employed with any accuracy. The use of sodium as a non-grey temperature indicating probe was investigated. The measurememt of integral radiancy is made almost monochromatic by passage through a narrow cut interference filter centered on 5892 angstroms, having a halfwidth of 7.5 angstroms. This enables the sodium D line doublet to be selected uniquely but renders the Beer's law expression inapplicable unless the shape of the emission line is known. The theories of spectral line broadening suggested the use of a theory by Lindholm to give this data and it was applied to the interpretation of the pyrometer readings. (Author).
Book Synopsis Optical Methods of Measuring Plasma Jet Temperatures by : Hoyt Clarke Hottel
Download or read book Optical Methods of Measuring Plasma Jet Temperatures written by Hoyt Clarke Hottel and published by . This book was released on 1961 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Methods of Measuring Plasma Jet Temperatures by : Hoyt Clarke Hottel
Download or read book Optical Methods of Measuring Plasma Jet Temperatures written by Hoyt Clarke Hottel and published by . This book was released on 1961 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: A literature study was made of methods for measuring temperatures of hot gases and plasmas, with emphasis on evaluation of non-spectroscopic techniques. For application to measurements on air stabilized plasma jets at temperatures to 8000 K and in the pressure range from 0.01 to 10 atmospheres, an optical technique was chosen, modified for fast response by use of a multiplier phototube as the receiver. The technique involves display on a cathode ray oscilloscope of signals alternately representing a single path and a double path (by means of a mirror) of the image of a portion of the plasma jet, the alternation being at 13. Extension of the range of possible temperature measurement to as high as 10,000 K is possible by interposition between the target and the pyrometer filament of neutral density glass filters, each having a transmissivity of about 4.5%. (Author).
Book Synopsis Optical Methods of Measuring Plasma Jet Temperatures by : Hoyt Clarke Hottel
Download or read book Optical Methods of Measuring Plasma Jet Temperatures written by Hoyt Clarke Hottel and published by . This book was released on 1961 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A literature study was made of methods for measuring temperatures of hot gases and plasmas, with emphasis on evaluation of non-spectroscopic techniques. For application to measurements on air stabilized plasma jets at temperatures to 8000 K and in the pressure range from 0.01 to 10 atmospheres, an optical technique was chosen, modified for fast response by use of a multiplier phototube as the receiver. The technique involves display on a cathode ray oscilloscope of signals alternately representing a single path and a double path (by means of a mirror) of the image of a portion of the plasma jet, the alternation being at 13. Extension of the range of possible temperature measurement to as high as 10,000 K is possible by interposition between the target and the pyrometer filament of neutral density glass filters, each having a transmissivity of about 4.5%. (Author).
Book Synopsis Optical Methods of Measuring Plasma Jet Temperatures by : Hoyt Clarke Hottel
Download or read book Optical Methods of Measuring Plasma Jet Temperatures written by Hoyt Clarke Hottel and published by . This book was released on 1962 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research Reports by :
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1962 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Publications Announcements with Indexes by : United States. National Aeronautics and Space Administration
Download or read book Technical Publications Announcements with Indexes written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 1318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory and Methods of Optical Pyrometry by : Henry J. Kostkowski
Download or read book Theory and Methods of Optical Pyrometry written by Henry J. Kostkowski and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed review of the theoretical methods of optical pyrometry and the application of these methods at the National Bureau of Standards in realizing, maintaining and distributing the International Practical Temperature Scale above 1063 C degrees is presented.In the theoretical presentation, the concepts of effective and mean effective wavelengths are introduced, and various equations relating these parameters to each other and other physical quantities are derived.The important features of precision visual optical pyrometers are discussed and a number of blackbody sources and tungsten strip lamps described. Detailed experimental procedures and results of primary and secondary calibrations of optical pyrometers at NBS are given.Finally, recommendations for achieving high precision and accuracy and the fundamental limitations in visual optical pyrometry are presented.(Author).
Book Synopsis Plasma Physics and Magnetohydrodynamics by :
Download or read book Plasma Physics and Magnetohydrodynamics written by and published by . This book was released on 1963 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Fusion and Plasma Research by :
Download or read book Controlled Fusion and Plasma Research written by and published by . This book was released on 1965 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TID. written by and published by . This book was released on 1965 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pyrometry: A Practical Treatise on the Measurement of High Temperatures (1920) by : Charles R. Darling
Download or read book Pyrometry: A Practical Treatise on the Measurement of High Temperatures (1920) written by Charles R. Darling and published by . This book was released on 2008-06-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.
Book Synopsis Bibliography of Scientific and Industrial Reports by :
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1962 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1968 with total page 1498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government-wide Index to Federal Research & Development Reports by :
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1965-10 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Thermal Radiation Properties of Solids by : Joseph C. Richmond
Download or read book Measurement of Thermal Radiation Properties of Solids written by Joseph C. Richmond and published by . This book was released on 1963 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
