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System
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Frequency Response Through Xcite's Unique Dual Loop Control The Xcite line of standard force generation systems includes a broad range of built-in features, as well as all the electronic and hydraulic equipment options, for complete application versatility. These Xcite system's were the first to be totally engineered for high frequency mechanical impedance testing with minimal operational training required. The end user is assured ease of use with little knowledge of electrohydraulic systems due to the systems flexibility of operation in numerous applications. All Xcite systems consist of three basic components: The Exciter Head, Master Controller and Hydraulic Power Supply.
The Exciter Head, with its force and displacement transducers, generates and measures the force or torque to the structure being tested and provides feedback signals for control of the test variables. Exciter heads are designed for maximum problem-solving flexibility in applications, fixtures and operation. Available in a broad range of force/ torque capabilities in linear, torsional, and inertial mass models, the exciter heads provide controlled static and dynamic force for a wide range of structural testing applications.
The Xcite System Master Controller provides all dual loop functions needed for accurate closed loop control and display of the static and dynamic test variables, while producing the highest electro-hydraulic frequency response.At the heart of each Xcite System is the Master Controller, a compact electronic control package which provides all of the controls and displays necessary to operate a controlled force or torque exciter system. The Xcite Master Controller is unique in that it provides electro-hydraulic excitation over a broad frequency range, unprecedented by any previous electro-hydraulic excitation system. It achieves its great frequency range through the use of sophisticated circuitry, high voltage inputs to the servovalve and compression control of the dynamic feedback variable in addition to the conventional servo control of the static loop. Static parameters such as force or displacement may be matched with dynamic control variables such as force, displacement, velocity, acceleration or strain for maximum test flexibility.
The Hydraulic Power Supply furnishes the Exciter Head with its hydraulic pressure, flow and filtration requirements. Xcite Hydraulic Power Supplies present a unique approach to meeting the fluid power requirements of the exciter heads. Each unit is transportable and self-contained to permit use at virtually any test site, yet its low noise characteristics make it equally suited for laboratory use. Power supply control is located on the Master Controller for ease of use. All Xcite power supplies furnish 3000 psi of pressure and are available in models ranging from 1 GPM to 75 GPM.
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