Shakers and exciters
Our comprehensive array of exciters and LDS shakers covers applications throughout the entire spectrum of vibration testing and modal and structural analyses.
From high-force electrodynamic shakers to palm-sized modal and measurement exciters, Brüel & Kjær offers a wide range of vibration test solutions. We also have a large selection of dedicated power amplifiers and vibration controllers, as well as matching slip tables, head expanders and thermal barriers, to meet all your vibration testing needs – whether it’s testing electronic components for mobile phones to complete satellite systems.
VIBRATION TESTING SYSTEMS
In addition to the shaker or exciter, a basic vibration testing system typically comprises an amplifier, which supplies the power to operate the shaker, and a vibration controller connected to a host Windows® PC or notebook that runs the vibration control software. (In the diagram below, the shaker is also fitted with a head expander.)
Vibration control software is divided into two parts: a user interface that runs on the host computer for configuring the tests and displaying the results, and the software that executes the actual tests on the controller driving the shaker. The PC and the controller are connected by either LAN or USB. A range of controller tests and features are available to simulate real-world operating conditions, as defined by MIL-STD, DIN, ISO and IEC standards.
LDS shaker systems
Our range of LDS electrodynamic shakers is designed for vibration testing of devices of practically any size – from PCBs or semiconductor components to aircraft assemblies and complete satellite systems. They can handle payloads up to 5000 kg (11,023.11 lb) and deliver peak sine forces ranging from 8.9 N (2 lbf) to 289.1 kN (65,000 lbf).
Our vibration control systems, which include vibration controllers and the relevant software, provide multi-point control of complex structures with an intuitive user interface and easy setup.
Linear and digital switching amplifiers
With power outputs of up to 280 kVA, our range of energy-efficient and reliable amplifiers is designed to drive LDS vibration test systems, as well as measurement and modal exciters.
Our modal exciters feature high force-to-weight ratios and have been specifically developed to offer the best possible modal-test performance with minimum setup time.
Our compact and lightweight measurement exciters are ideal for experimental modal analysis, vibration testing of small objects, accelerometer calibration, and mechanical impedance and mobility measurements.