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Navcon Engineering was contracted to conduct the modal survey of the High Energy Solar Spectroscopic Imager (HESSI) spacecraft. The primary objective was to identify the damped natural frequencies, damping factors and mode shapes in the frequency band between 70 Hz. and 170 Hz. |
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The APS Dynamics Power Amplifiers are designed specifically to provide drive any vibration and modal exciter requiring 500 VA (Model 125) or 810 VA (Model 145). The output stage uses proven high reliability power operational amplifiers arranged to produce a balanced output. |
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SIDLAB Measurement This is a post-processing module for measurement data. It handles two types of measurements: |
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Principal Hardware Specification |
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Principal Hardware Specification |
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The ELECTRO-SEIS® is a force generator specifically designed to be used alone or in arrays for studying dynamic response characteristics of structures such as automobiles, aircraft, bridges, floors, missiles, piping systems, spacecraft, towers, etc. |
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The Company began operations in Anaheim, California in 1971 as Acoustic Power Systems, Inc. Initially, the Company specialized in the development of high power acoustic generators. Subsequently, the company focused on the development of electro-dynamic shakers and power amplifiers. The Company's name was changed in 1989 to APS Dynamics, Inc. |
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dBSea has been developed by Marshall Day Acoustics as a powerful tool for the prediction of underwater noise in a variety of environments. dBSea is ideal for the investigation of underwater acoustic problems involving single or multiple sources using solvers covering a wide frequency range. |
