Metallic communication cables test methods - Part 1-1: Electrical - Measurement of the pulse/step return loss in the frequency domain using the Inverse Discrete Fourier Transformation (IDFT)
适用范围:This part of IEC 62153 describes the test which determines the regularity of impedance of r.f. cables by measuring the return loss in the frequency domain using a vector network analyser equipped with ...
实施日期:2004-09-01
Optics and photonics -- Optical transfer function -- Principles of measurement of modulation transfer function (MTF) of sampled imaging systems
适用范围:ISO 15529:2010 specifies the principal MTFs associated with a sampled imaging system, together with related terms, and outlines a number of suitable techniques for measuring these MTFs. It also defines...
发布日期:2010-08-01 实施日期:2010-08-01
Mechanical vibration and shock -- Signal processing -- Part 2: Time domain windows for Fourier Transform analysis
适用范围:ISO 18431-2:2004 specifies the algebraic functions which describe a selected set of time domain windows used for pre-processing digitally sampled vibration and shock data as a precursor to Discrete Fou...
发布日期:2004-10-01 实施日期:2004-10-01
Verification regulation for fourier transform infrared spectrometer
发布日期:1997-01-23 实施日期:1997-04-01
Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion
实施日期:2008-05-01
Optical fibres Part 1-48:Measurement methods and test procedures. Polarization mode dispersion Fibres optiques Partie 1-48:Méthodes de mesure et procédures d′essai. Dispersion de mode de polarisation E...
适用范围:This part of IEC 60793 applies to three methods of measuring polarization mode dispersion(PMD), which are described in Clause 4. It establishes uniform requirements for measuringthe PMD of single-mode ...
实施日期:2007-06-01
实施日期:2012-11-05
Standard Test Methods for Polyurethane Raw Materials:Determination of the Isomer Content of Toluenediisocyanate
适用范围:<p>These test methods can be used for research or for quality control to determine the isomer content of toluene diisocyanates. </p> <p>The isomer content of a toluene diisocyanate relates to its react...
实施日期:2012-05-01
实施日期:2009-02-01
Optik und Photonik. Optische ?bertragungsfunktion. Messung der Modulationsübertragungsfunktion von abtastenden Abbildungssystemen Optics and photonics. Optical transfer function. Principles of measurem...
实施日期:2010-10-31
实施日期:1998-04-10
实施日期:2008-12-31
Verification regulation for superconduciong pulse FT NMR spectrometer
发布日期:1997-01-23 实施日期:1997-04-01
Verification regulation for pulse Fourier transform electromagnet NMR spectrometer
发布日期:1997-01-23 实施日期:1997-04-01
Optical fibres. Measurement methods and test procedures. Polarization mode dispersion
适用范围:This part of IEC 60793 applies to three methods of measuring polarization mode dispersion(PMD), which are described in Clause 4. It establishes uniform requirements for measuringthe PMD of single-mode ...
实施日期:2008-01-31
Standard Test Methods for Absorbance of Polyethylene Due to Methyl Groups at 1378 cm-1
实施日期:1992-12-15
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