Our modal exciters are engineered with high-performance and simple user setup in mind, offering an uncompromising balance between modal test performance and ease-of-integration. Featuring high force-to-weight ratios, our modal exciters are specifically developed to ensure the best possible modal test performance with the fastest setup, are essential for quality experimental modal models and choosing the right one is key.
Types 4827 and 4828Designed for the most demanding experimental modal testing applications, these exciters have force ratings up to 650 N (146 lbf) for Type 4827 and 1000 N (225 lbf) for Type 4828. They are ideal for high-precision, single- and multiple-point excitation of extra-large devices, such as locomotives, industrial turbines, heavy-duty pumps and aerospace assemblies.
Types 4825 and 4826With force ratings up to 200 N (45 lbf) for Type 4825 and 400 N (90 lbf) for Type 4826, these exciters are ideal where payloads require high-precision excitation in single- or multi-point setups. Strong and versatile, they are used for a variety of applications, such as testing of engines, body-in-white on passenger cars and small trucks, and aerospace structures.
With a commitment to assuring the highest quality modal testing performance and a choice of exciters with high force-to-weight ratios, Brüel & Kjær is the ideal partner for experimental analysis of various modal properties.
Damping, mass, natural frequencies, stiffness, and many more structural characteristics can be explored via modal testing using high-force exciters. By carefully tailoring the force-to-weight ratios of our modal exciters, we preserve the quality of your test results by mitigating frequency response function (FRF) errors and minimizing the interactions between the exciter and the device under test.
Brüel & Kjær modal exciters comprise a rigid, lightweight design with sine force ratings of 100 – 1000 N. This superb force-to-weight performance comes courtesy of a proprietary rare-earth magnet technology, enabling unprecedented measuring precision with negligible FRF errors and undesirable interactions.