Journal of Research of the National Bureau of Standards: Engineering and instrumentation. C, Volume 76, Issues 1-2The Bureau, 1972 |
Other editions - View all
Common terms and phrases
absorption adjusted analysis arrest ASCII balance ball beam Bureau of Standards Cali-Block calibration cavity growth cents character structure coefficient collimated light components deformation density denture denture base detectors determined diameter dilatation disclination dynamic modulus effect electron emission equation error etalon evaluation figure film fracture frequency friction fringes germanium graphite graphite fiber graphite fiber-reinforced hardening high modulus indicate Information Interchange interferograms interferometer ion-selective electrode Key words laser light liquid low modulus measurements ment method metric system microinch microwave mode modulus fiber National Bureau obtained optical pages July 1971 paper phase Phys plane plane strain plastic strain increment plate polymer Proc properties Publ ratio refractive index resonance SD Catalog sliding Spec specimen Stand stress Tech techniques temperature thermal thermocouples tion U.S. Metric Study values wave plate wear load weight carrier wire bonds x-ray yield locus
Popular passages
Page 73 - Key words: Density; dielectric constant; enthalpy; entropy; equation of state; fixed points; heat transfer coefficients; index of refraction; Joule,Thomson; latent heat; melting point; Prandtl number; oxygen; specific heat.
Page 78 - This paper is the second part of an analytical and experimental investigation, in which the primary object was to test the hypothesis that the flow of the gas phase controls critical and near critical two-phase flow for cases where the gas and liquid flow essentially in separate streams. In the first part of the investigation, a two-component system (air-water) was used. The results presented here substantiate the hypothesis. The analytical results also indicate...
Page 67 - SI; US Metric Study. This publication, one of a series prepared pursuant to the US Metric Study Act, explores the impacts metrication would have on commercial weights and measures activities. More specifically, the report concerns: (1) the cost of adapting or changing commercial weighing and measuring devices to record and/or indicate in metric units, and (2) the effects of metrication on state and...
Page 59 - This quarterly progress report, fourth of a series, describes NBS activities directed toward the development of methods of measurement for semiconductor materials, process control, and devices.
Page 67 - The signal level calibration is made with respect to a reference signal level derived from the NBS Master Standard Magnetic Tape (Computer Amplitude Reference) that is kept in repository at NBS. The techniques for measuring and recording the data that accompany each Secondary Standard Magnetic Tape in the form of strip chart recordings and saturation curves are described.
Page 68 - This volume is one of an extended series which brings together some of the previously published papers, monographs, abstracts and bibliographies by NBS authors dealing with the precision measurement of specific physical quantities and the calibration of the related metrology equipment. The contents have been selected as being useful to the standards laboratories of the...
Page 72 - This publication provides three subsets of 95, 64 and 16 graphic characters derived from the Federal Standard Code for Information Interchange (FIPS 1). which was adopted from the American Standard Code for Information Interchange (ASCII) X3.4-1968. These subsets are for use in Federal printers, display devices, punched card equipment, and other data processing or communication equipments which utilize a character subset less than the full 1 28-character set of FIPS 1.
Page 21 - Nos. 1 and 2, 21-23 (Jan.-June 1972). Key words: Arithmetic Average roughness; Cali-Block; calibration; roughness. The distribution of Arithmetic Average values of surface roughness across the 120 and 20 micro-inch patches of NBS Cali-Block "B" have been measured. It is shown that each distribution can be described in terms of its mean value and standard deviation. The observed systematic distribution of AA values strongly suggests that the user select several widely spaced regions at random on the...
Page 59 - Methods of measurement for semiconductor materials, process control, and devices. Quarterly Report January 1 to March 31, 1971, Nat.
Page 77 - More than 245 papers relevant to wire-bond type electrical interconnections used in microelectronic and low-power discrete and hybrid devices are listed together with key words. The bibliographic search concentrated on compiling papers which appeared in the period from 1965 to 1970, inclusive. The selection of papers was generally limited to those that were pertinent to...