The minimization of noise is of primary importance in optimizing system performance. Active noise cancellation is one of the most promising concepts for achieving noise reduction. This cancellation is generally obtained by means of some type of an adaptive filter. The key component of such a filter… More

Ai signal research, inc. (aisri) proposes to develop a complete intelligent health monitoring system (ihms) which provides low-cost on-line monitoring and diagnostic services for turbomachinery. our approach uses our proven innovative diagnostic signal analysis techniques which we developed during… More

The focus of the Phase I work proposed herein is the preliminary design of a Coherent Phase Cavitation Monitoring System (CPCMS) for turbomachinery. Cavitation is the process of boiling water which occurs when local hydrodynamic pressures in the areas of accelerated flow drop below the vapor… More

ASRI proposes to design and demonstrate a Phase Signature Antenna Drive Diagnostics System (PSADDS) for incipient fault detection and diagnostics of drive system bearing/gear train components. The PSADDS utilizes ASRI's innovative Phase Signature Analysis (PSA) techniques developed for the Space… More

ASRI proposes to develop a low-cost PC-based Dynamic Signal Analyzer (DSA) utilizing a novel spectral enhancement method to provide incipient fault-detection capabilities for rotating machinery. Based on a new spectral analysis technique called Coherent Phase Line Enhancer (CPLE), the DSA will… More

The proposed innovative analysis tool is driven by the need to integrate both analytical and experimental techniques when performing an experiment of spacecraft launch. When available, this tool provides an acoustic engineer access to both the experimental data being measured and analytical… More

The proposed innovative analysis tool is driven by the need to integrate both analytical and experimental techniques when performing an experiment of spacecraft launch. When available, this tool provides an acoustic engineer access to both the experimental data being measured and analytical… More

The proposed innovative analysis tool is driven by the need to integrate both analytical and experimental techniques when performing an experiment of spacecraft launch. When available, this tool provides an acoustic engineer access to both the experimental data being measured and analytical… More

ASRI proposes to develop a low-cost PC-based Dynamic Signal Analyzer (DSA) utilizing a novel spectral enhancement method to provide incipient fault-detection capabilities for rotating machinery. Based on a new spectral analysis technique called Coherent Phase Line Enhancer (CPLE), the DSA will… More

ASRI proposes to develop a low-cost PC-based Dynamic Signal Analyzer (DSA) utilizing a novel spectral enhancement method to provide incipient fault-detection capabilities for rotating machinery. Based on a new spectral analysis technique called Coherent Phase Line Enhancer (CPLE), the DSA will… More

AI Signal Research, Inc. proposes to develop a Non-Intrusive Vibration Measurement System (NI-VMS) for turbopumps which will provide effective on-board/off-board fault detection diagnostic capabilities without relying on any intrusive installation of once per revolution (1/Rev) tachometer key phasor… More

ASRI proposes to develop an advanced and commercially viable Non-Intrusive Vibration Monitoring System (NI-VMS) which can provide effective on-line/off-line engine vibration monitoring capabilities without relying on intrusive key-phasor speed measurements. Many powerful vibration signature… More