Improved Quantitative Debris Monitoring Capability
Final rept. Jun 1985-Nov 1986
AEROQUIP CORP GLENOLDEN PA TEDECO DIV
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This report describes the operation and performance evaluation results of a QDM Mark II prototype fine ferrous debris monitoring system developed by TEDECO. The purpose of the QDM Mark II system is to continually measure the accumulation of wear - generated fine ferrous debris, as well as flake size debris. The QDM Mark II system employs an electronically driven probe which allows a continuous sensing of debris accumulation. The debris-related signal is detected and suitably scaled to provide a DC signal proportional to the mass of the accumulated debris. Since the system measures the mass of accumulated ferrous debris, its resolution is limited only by system and probe stability and allows detection of sub-milligram amounts of ferrous debris. The QDM Mark II prototype tested in this program provides only the mass-proportional DC signal as an output. The DC signal may be scaled to any range within the dynamic capability of the system and can be converted to a digital output format.
- Properties of Metals and Alloys