02/205824 DC : 0
Superseded
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PREN 50 XXX - BASIC STANDARD ON MEASUREMENT AND CALCULATION PROCEDURES FOR HUMAN EXPOSURE TO ELECTRIC, MAGNETIC AND ELECTROMAGNETIC FIELDS (0 HZ - 300 GHZ)
Hardcopy , PDF
28-02-2009
English
1 Scope
2 Normative references
3 Definitions
3.1 Antenna
3.2 Contact current
3.3 Current density (J)
3.4 Exposure
3.5 Far-field region
3.6 Induced current (I)
3.7 Electric field strength (E)
3.8 Magnetic field strength (H)
3.9 Magnetic flux density (B)
3.10 Near-field region
3.11 Peak value of (electric or magnetic) field strength
3.12 Permeability (mu)
3.13 Phantom
3.14 Power density (S)
3.15 Root-mean square (rms)
3.16 Root-sum square (rss)
3.17 Specific absorption rate (SAR)
3.18 Response time
3.19 Unperturbed field
4 Measurement
4.1 General observations
4.2 Uncertainty
4.2.1 Evaluating uncertainties
4.2.2 Examples of typical uncertainties
4.3 Calibration
4.3.1 Introduction
4.3.2 Calibration techniques for EM field probes
4.3.3 Calibration range
4.3.4 Calibration uncertainty
4.4 EM field strength measurement
4.4.1 General requirements on measurement equipment
4.4.2 Electric field probes
4.4.3 Magnetic field probes
4.4.4 Measurement procedures
4.4.5 Measurements of unperturbed electric or
magnetic field strength
4.5 Body current measurement
4.5.1 Measurement devices for limb currents
4.5.2 Measurement devices for contact current
4.5.3 Body current assessment methods
4.6 Specific absorption rate (SAR)
4.6.1 Internal electric field strength measurements
4.6.2 Internal temperature measurements
4.6.3 Calorimetric measurements of heat transfer
5 Calculation
5.1 General aspect
6 Phantoms
7 Assessment report
7.1 General
7.2 Items to be recorded in the assessment report
7.2.1 Assessment method
7.2.2 Presentation of the results
8 References
Annex A (normative) Models for validation of calculation methods
A.1 Unperturbed electric and magnetic fields
A.2 Body current and current density
A.3 Specific Absorption Rate
A.4 References
Annex B (informative) Numerical methods
B.1 Finite Element Method (FEM)
B.2 Finite Difference Method (FDM)
B.3 Finite Difference Time Domain (FDTD)
B.4 Integral Equations (IE)
B.5 Impedance Method (IM)
B.6 Generalised Multipole Technique (GMT)
B.7 Hybrid Finite Element-Boundary Element method (FEM-BEM)
B.8 References
Annex C (informative) Uncertainty assessment for the
measurement of EMF
C.1 Steps in establishing an uncertainty budget
C.2 Example for calculation of uncertainty measuring
field strength using a biconical antenna in the
frequency range 30 MHz to 300 MHz (vertical
polarization at 3 m and 10 m distance)
C.3 References
Committee |
GEL/106
|
DocumentType |
Draft
|
Pages |
62
|
PublisherName |
British Standards Institution
|
Status |
Superseded
|
SupersededBy |
ISO/IEC 17025:2005 | General requirements for the competence of testing and calibration laboratories |
EN 50361:2001 | Basic standard for the measurement of Specific Absorption Rate related to human exposure to electromagnetic fields from mobile phones (300 MHz - 3 GHz) |
IEC 61000-4-3:2006+AMD1:2007+AMD2:2010 CSV | Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test |
ETR 200028 : 20002 | RADIO EQUIPMENT & SYSTEMS (RES) - UNCERTAINTIES IN THE MEASUREMENT OF MOBILE RADIO EQUIPMENT CHARACTERISTICS |
IEC 60359:2001 | Electrical and electronic measurement equipment - Expression of performance |
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