Measurement exciters – Brüel & Kjær Sound & Vibration

Type 4809

Vibration Exciter
A small exciter capable of delivering peak sine forces up to 60 N (13.5 lbf). Used for vibration testing of small articles and for experimental modal analysis.
Type 4808

Permanent Magnet Vibration Exciter
A compact exciter with force ratings up to 187 N (42 lbf) used for long-duration, high g-force testing of relatively heavy loads as well as for accelerometer calibration and mechanical mobility measurements.
Type 4810

Mini-shaker
A compact and lightweight electrodynamic exciter with force ratings of up to 10 N (2.25 lbf). Type 4810 is used for vibration testing of very small articles, for experimental modal analysis with low forces and for mechanical impedance and mobility measurements.