EMI/RFI Shielding Effectiveness Evaluation of Bolt-Together Shielded Rooms in Long-Term Aging
Abstract
This report presents the results of a laboratory evaluation of electromagnetically shielded rooms that represent the state of the art in demountable, bolt-together shielded rooms. First, the initial shielding effectiveness was measured; next, the rooms were housed for a 3-year 'aging' period in a laboratory area whose environment was controlled during working hours for human comfort. Additional evaluations included a study of how easily the rooms could be assembled, a comparison of shielding effectiveness when different seam bolt torques were used, and a comparison of particle board and plywood panel cores. The study results show that significant degradation of shielding effectiveness occurs with aging, so periodic maintenance will be necessary if optimum shielding is required.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1981
- Accession Number
- ADA102754
Entities
People
- Raymond G. Mccormack
Organizations
- Construction Engineering Research Laboratory