Vibration Exciter Spektra SE-14

Spring-guided vibration exciter that is suitable for daily use in the calibration laboratory as well as for vibration tests.

Description

The SE-14 is a high-tech product that is a reliable tool for vibration testing in research and development as well as for daily use in calibration laboratories. It was especially designed to test and calibrate heavier acceleration and velocity sensors (e.g. sensors for machine diagnostics) over a wide frequency range. Its flexural guidance system perfectly supports sensors with an asymmetric housing or with heavy and stiff cables, without a loss in signal quality. High acceleration amplitudes of up to 500 m/s² and a payload capacity of up to 2 kg allow for a wide range of applications in vibration tests as well. Regarding calibration, the SE-14 comes up with two features which will set a new standard for the calibration quality:

• The vibration exciter armature is made from a compound of aluminum and steel, including a thermo barrier – minimizing the heat transfer from the driving coil to the exciter’s table surface. During a calibration run or vibration test even at higher levels, there will be no significant temperature rise on the table surface.
• The vibration exciter housing consists of a magnetic shielding, which keeps the stray magnetic field from the permanent magnet system inside of the housing. As a result, the stray magnetic field on top of the table is less than 1.2 mT. Especially velocity sensors, using an electrodynamic principle, will not be affected from the stray magnetic field during the calibration.

Users of the SE-14 in calibration laboratories also appreciate the faster calibration cycle times with low measurement uncertainties in the frequency range of 3 Hz to 7.5 kHz – made possible by the optional internal reference standard accelerometer.

Useful safety functions (e.g. temperature/current and over travel control) are already integrated and are visualized on the amplifier‘s multi function display.