MEASUREMENT OF RADIO FREQUENCY EMISSION FROM INDUSTRIAL, SCIENTIFIC, AND MEDICAL (ISM) EQUIPMENT INSTALLED ON USER'S PREMISES
Institute of Electrical & Electronics Engineers
1. Scope
2. Measurement Procedures
2.1 Establish the Objectives of the Measurements
2.1.1 Grouping ISM Equipment
2.1.2 Prototype Measurements
2.2 Physical Inspection of ISM Equipment
2.3 Determine Measurement Locations
2.4 Adjust the Equipment Under Test
2.5 Connect Equipment for Spectrum Measurements
2.5.1 Verify Equipment Use and Operation
2.5.2 Verify System Calibration
2.6 Determine the RF Spectrum
2.7 Measure Conducted Emission
2.8 Measure Radiated Emission
2.8.1 High Background Levels
2.8.2 Overhead Measurements
2.9 Calculate and Plot Data
3. Report of RF Field Measurements
4. Bibliography
APPENDIXES
A. Measurement System Characteristics
A.1 Antenna Selection
A.2 Detectors
A.3 Measurement System Sensitivity
A.4 Measurement System Bandwidth
B. Minimizing Measurement Errors
B.1 Antenna Problems
B.2 The Antenna Factor
B.3 Detector Problems
B.4 Data Collection and Processing Problems
B.5 Interface and Cable Errors
B.6 Impedance Mismatch
B.7 Baluns
APPENDIX TABLES
A.1 Antenna Selection
A.2 Minimum Bandwidth (-6 dB) of the Measurement
System
This document describes equipment inspection and radio frequency (rf) electromagnetic field measurement procedures for evaluation of rf industrial, scientific and medical (ISM) equipment installed in the users facility. "ISM" equipment here includes equipment that generates rf energy for purposes other than radio communications, to cause physical, chemical or biological changes; for example industrial heaters, (dielectric and induction), medical diathermy, ultrasonic equipment, rf plasma devices and rf stabilized welders.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
