GB/T 42741-2023
ActiveMeasuring method for electromagnetic parameters of solid materials using air-freespace
固体材料使用自由空间法的电磁参数测量方法
Application Summary AI generated
This standard specifies the measurement method for determining the electromagnetic parameters (permittivity and permeability) of solid materials using the free-space technique, which involves transmitting and receiving electromagnetic waves through air without physical contact. It is primarily applied in the fields of telecommunications, aerospace, and defense for characterizing the electromagnetic properties of materials like composites, ceramics, and absorbers used in radomes, antenna covers, and stealth structures. The method is particularly relevant for testing large, flat, or non-destructive samples in laboratory or industrial quality control settings where contact-based probes are impractical.
Related Standards
GB/T 12162.2-2004
X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy--Part 2:Dosimetry for radiation protection over the energy ranges 8keV to 1.3 MeV and 4MeV to 9MeV
GB/T 12162.3-2004
X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy--Part 3:Calibration of area and personal dosemeters and the measurement of their response as a function of en
GB/T 7165.1-2005
Equipment for continuous monitoring of radioactivity in gaseous effluents Part1:General requirements
GB/Z 28820.4-2022
Long-term radiation ageing in polymers—Part 4: Effects of different temperatures and dose rates under radiation conditions
GB/T 17680.10-2003
Criteria for emergency planning and preparedness for nuclear power plants--Criteria for emergency radiological field monitoring，sampling and analysis conducted by nuclear power plant operating organizations
GB/T 10257-2001
Quality inspection rule for nuclear instruments and nuclear radiation detectors
GB/T 12162.1-2000
X and gamma reference radiation for calibrating dose meters and doserate meters and for determining their response as a function of photon energy--Part 1:Radiation characteristics and production methods
GB/T 12128.2-1999
Reference sources for the calibration of surface contamination monitors--Part 2:Electrons of energy less than 0.15MeV and photons of energy less than 1.5MeV
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.