IEEE ANSI C95.3 1973
$37.38
American National Standard Techniques and Instrumentation for the Measurement of Potentially Hazardous Electromagnetic Radiation at Microwave Frequencies
| Published By | Publication Date | Number of Pages |
| IEEE | 1973 | 38 |
– Active. This standard sets forth evaluation techniques and instrumentation to determine the existence of a potentially hazardous situation due to electromagnetic radiation. The scope includes hazards to flammable volatile materials and explosive devices. Emphasis is on techniques suitable for measuring power density at microwave frequencies. These techniques are generally applicable only in the far field, but reasonably accurate measurements can be made whenever the following necessary conditions are satisfied. (1) The transmitting antenna and any scattering objects must be in the far field of the receiving antenna. (2) The receiving antenna must be at least several ‘aperture diameters’ removed from the transmitting antenna and any scattering objects. (3) The transmitting antenna and any sources of multipath scattering must be contained within the main beam of the receiving antenna. Thus, leakage measurements and measurements in the reactive near field are specifically excluded. However, measurements can be made in the radiating near field with a receiving antenna which is small compared to the source antenna if the three conditions above are satisfied.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 9 | 1 Scope 1.1 Purpose 1.2 Application and Limitations |
| 10 | 2 Electromagnetic Environment 2.1 Nature of Potentially Hazardous Radiation Fields 2.2 Sources |
| 11 | 3 Theoretical Calculations 3.1 Technical Considerations |
| 12 | Parabolic Antennas – On Axis |
| 13 | Circular Parabolic Antennas – Off Axis 3.4 Scanning Correction |
| 14 | 4 MethodsofMeasurement 4.1 General Procedures 4.2 Equipment Requirements 4.3 Survey Procedure Polarization Effects |
| 15 | 4.4 Safety Precautions Uses of Test Equipment |
| 17 | 5 Test Equipment 5.1 Instrumentation Requirements Suggested Electrical Performances Characteristics 5.1.2 Suggested Physical Characteristics |
| 18 | 5.2 Calibration 5.2.1 Instruments Basis of Instrumentation Calibration |
| 19 | 5.2.3 Calibration Procedure |
| 20 | 5.2.4 Chamber Illumination Systems Fig 1 Block Diagram of Fundamental Chamber Illumination System |
| 21 | 5.2.5 Field Probing System Fig 2 Block Diagram of Fundamental Field Probing System |
| 22 | 5.2.6 Component Calibrations |
| 24 | 5.3 Protective Clothing 6 Definitions |
| 28 | 7 References |
| 29 | Revision of American National Standards Referred to in This Document |
| 30 | Calculation and Measurement of On-Axis Power Density A1 Calculation of On-Axis Power Density – Basic Equations Table A1 Rectangular Apertures |
| 31 | Antennas in the Radiating Near Field Near-Field Gain Correction for Uniform Illumination Table A2 Circular Apertures |
| 32 | Antennas in the Radiating Near Field Measurement of Power Density Near-Field Gain Correction for cos Illumination |
| 34 | Near-Field Gain Correction for cos2 Illumination |
| 35 | Fig A4 Near-Field Gain Correction for cos3 Illumination |
| 36 | Fig A5 Near-Field Gain Correction for cos4 Illumination |
| 37 | Circular-Aperture (1 – q) P Tapers |
| 38 | Typical Microwave Test Configuration |
