Modal exciters – Brüel & Kjær Sound & Vibration

Type 4824

Modal Exciter
A compact and lightweight modal exciter with a force rating of 100 N (22 lbf), Type 4824 is ideal for high-precision, single- or multi-point excitation of a range of payloads, from automotive powertrain and drivetrain components to large and very large structures.
Types 4825 and 4826

Modal Exciter
With 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.
Types 4827 and 4828

Modal Exciter
Designed 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.
Type 1056

DC Static Centering Unit
Designed to work as part of a system with our modal exciters and matching amplifiers, this unit enhances operation by correcting the position of the exciter’s armature or by applying pre-tensioning force to tension- or piano-wire stingers.