GROUNDING TECHNIQUES FOR THE MINIMIZATION OF INSTRUMENTATION NOISE PROBLEMS.
Abstract
The study effort summarized in this report was conducted to satisfy the requirements of base personnel for useful and practical information pertaining to the problems encountered in data instrumentation grounding. The course of action taken was to organize the study into three phases. Phase 1 was a general investigation of the problem, Phase 2 was an investigation of the system and design considerations involved, and Phase 3 consisted of the preparation of a handbook that outlined solutions to the grounding problems encountered in data instrumentation systems. Careful analysis of the information obtained in the investigations of the problem led to the following conclusions. A data instrumentation system should be grounded at only one point, at the test stand. Only an isolated AC power source should be used to supply power to the data system. All instrumentation cable shields should be grounded to the test stand ground. There should be a minimum separation distance of onehalf mile between the data facility and the nearest high voltage transmission line. It is recommended that aluminized mylar foil shielded cables be used for high accuracy low level instrumentation. A computer program was written as a test of the usefulness of such an analysis. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1965
- Accession Number
- AD0458129