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This guide provides guidance for synchronization, calibration, testing, and installation of phasor measurement units (PMUs) applied in power system protection and control. The following are addressed in this guide: a) Considerations for the installation of PMU devices based on application requirements and typical bus configurations. b) Techniques focusing on the overall accuracy and availability of the time synchronization system. c) Test and calibration procedures for PMUs for laboratory and… read more field applications. d) Communications testing for connecting PMUs to other devices including Phasor Data Concentrators (PDCs). read less

定价： 109元 / 折扣价： 93 元

This standard establishes methods for performance testing, calibration, and usage of thallium-activated sodium iodide [NaI(Tl)] detector systems for the measurement of gamma ray emission rates of radionuclides; the assay for radioactivity; and the determination of gamma ray energies and intensities. It covers both energy calibration and efficiency calibration. The following three techniques are considered: a) Total spectrum counting (see 4.1) employs a system that counts all pulses above a low-… read more energy threshold (see 6.1, 6.2, and 6.3). b) Single-channel analyzer (SCA) counting (see 4.2) employs a system with a counting "window," which establishes upper and lower energy boundaries (see 6.1, 6.2, and 6.3). c) Multichannel analyzer (MCA) counting (see 4.3) employs a system in which multiple counting windows are utilized. This technique allows measurements for which the continuum under the full energy peak may be subtracted without introducing unacceptable error. In case of overlapping peaks in the spectrum, it is realized that an MCA with access to a spectrum-stripping program is necessary. Such cases are not covered by this standard. read less

定价： 127元 / 折扣价： 108 元

ANSI N13.30-1996, American National Standard Performance Criteria for Radiobioassay

定价： 174元 / 折扣价： 148 元

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This standard includes calibration methods for electromagnetic field sensors and probes, excluding antennas per se, for the frequency range from 9 kHz to 40 GHz. The standard defines the characteristics, use and measurement uncertainties for electromagnetic field sensors and field probes. Areas described include: anisotropy effects, temperature effects, probe linearity effects, modulation effects, source and conductor proximity (near-field) effects, response in multi-frequency fields, partial- vs. full-immersion of probe/meter, non-purity and harmonic field effects caused by amplifiers. Specific instructions are provided for proper calibration of probes for different applications.

定价： 191元 / 折扣价： 163 元

This standard establishes minimum acceptance performance requirements for portable radiation protection instruments used for detection and measurement of ionizing radiation fields or levels of radioactive surface contamination that are near background. For purposes of this standard, portable radiation protection instruments are those battery-powered instruments that are carried to a specific facility or location for use. Specifically, this standard is intended to apply to those instruments… read more utilized to make in-situ measurements for confirmation of residual radioactivity levels that are below criteria established to permit the unrestricted release of a surface area or component from further regulatory controls. This standard is intended to define performance requirements and acceptance testing that supplements those established in ANSI N42.17A-1989 [B7] and ANSI N42.17C-1989 [B8], and to define calibration requirements that supplement those established in ANSI N323A-1998 [B6].1 This standard is applicable to the measurement of gamma, beta, and alpha radiation emissions only. This standard addresses the instrument response requirements for the same range of surface activity covered by the above ANSI standards, but extends the applicable range of dose-rate response below those standards. This is illustrated in Table 1. Throughout this standard, three verbs have been used to indicate the degree of rigor intended for each specific test or performance criterion. The word "shall" is used to denote a requirement; the word "should" to denote a recommendation; and the word "may" to denote a permissible practice. read less

定价： 87元 / 折扣价： 74 元

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The standard defines terminology, device classes, laboratory tests, characterization and calibration methodologies, and recommended practices for application-specific tasks. Initial work is limited to devices that cover the the 0.25-2.50um spectral region.

定价： 131元 / 折扣价： 112 元

This standard sets forth the requirements for a calibration program to control and verify the accuracy of M&TE (measuring and test equipment) which is used to assure that important parts of nuclear power generating stations are in conformance with prescribed technical requirements, and that data provided by testing, inspection, or maintenance are valid. These important parts include those structures, systems, and components whose satisfactory performance is required; for the plant to… read more operate safely, to prevent accidents that could cause undue risk to the health and safety of the public, or to mitigate the consequences of such accidents if they were to occur. This standard is intended to be used in conjunction with American National Standard Quality Assurance Program Requirements for Nuclear Power Plants, ANSI N45.2-1971 read less

定价： 56元 / 折扣价： 48 元

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This standard provides methods for determining antenna factors (AFs) and associated parameters of antennas used to perform radiated emission measurements in electromagnetic interference (EMI) control from 9 kHz to 40 GHz. Antennas covered by this standard are linearly polarized antennas, such as loops, rods (monopoles), tuned dipoles, biconical dipoles, log-periodic dipole arrays, hybrids (i.e., combination broadband dipole and log-periodic dipole array antennas), broadband horns, etc., that… read more are used in measurements defined by various ASC C63(R) emission measurements standards (e.g., ANSI C63.4 and ANSI C63.10).4 The associated compliance measurement requirements are provided within other ASC C63(R) standards. The methods used for antenna calibration measurements include the standard site method (SSM), the reference antenna method (RAM), the equivalent capacitance substitution method (ECSM), the standard transmit loop method (STLM), the standard antenna method (SAM), and the standard field method (SFM). In 4.1, the latter three methods are included in this document by reference. read less

定价： 159元 / 折扣价： 136 元

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定价： 无文本