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SE-21

High frequency vibration exciter with cubic armature

Powerful high-frequency exciter as part of the SE-2X series with cube-shaped ceramic armature for excitation of all DUT axes. 
With its electrodynamic drive system, the SE-21 offers a very wide frequency range with low transverse motions. A high payload, simple operation in a climatic chamber (as SE-21T) and the many extensions enable the SE-21 to be used as a multi-tool for testing, characterizing and calibrating vibration sensors or smaller electronic devices.

 

APPLICATIONS

What are the SPEKTRA areas of application?
Learn more … 

 

Download data sheet

SE-21
SE-21
SE-21
SE-21

Key Features

Features 1

 Features
  • acceleration, max. (sine-peak): 390 m/s2
  • force rating, max. (sine-peak): 95 N
  • frequency range: 3 Hz...50 kHz (with optional internal reference standard)

Eigenschaften 2 (Kopie 2)

 
  • transverse motion typical < 5 %
  • displacement, max. (peak-peak): 10 mm
  • temperature range: -20 °C…+80 °C resp. -40 °C…+120 °C as SE-21T
  • payload, max.: 2 kg vertical / 1 kg horizontal

Applications 1

 Applications
  • vibration tests in different directions to the excitation axis
  • calibration of vibration sensors according to ISO 16063-21
  • industry, research, education and training

Anwendungen 2 (Kopie 1)

 
  • vibration tests of small-scale devices
  • device testing and sensor characterization
  • education and training

Product details

Temperature option

  • temperature monitoring, active cooling
  • SE-21T with extended temperature range and therefore more possible applications
  • operation in climate chamber

For further details, please refer to the technical data sheet. Subject to change without notice.

 

Performance

The diagrams below show the performance of the SE-21 and SE-21T for operation alternating between 10 minutes at full load and 10 minute breaks (blue graph). Performance may vary for different cycles. The yellow graph shows acceleration values that can be safely used during continuous operation.
At 2 kHz, you can see a boost in the maximum acceleration. This is due to a new bearing design which minimizes transverse motion over the whole frequency range and reduces the moving mass above 2 kHz, thereby allowing for increased acceleration at equal force.

Diagramme

Typical transverse motion SE-21

Details

SE-21 with PA 500 DM

Details

SE-21T with PA 500 DM

Details
PA 500 DM

PA 500 DM

500 VA power amplifier

The PA 500 DM offers a max. frequency range DC...200 kHz, small harmonic distortion, excellent stability even with temperature or supply line variations and helpful protection functions.

For all vibration exciters that require a 500 VA power amplifier (load impedance 4 Ω). 

APPLICATIONS

What are the SPEKTRA areas of application?
Learn more … 

Download datasheet

SE-2x Trunnion Base

SE-2x Trunnion Base

Trunnion Base for vibration exciters SE-20, SE-21 and SE-29

Allows the vibration axis of the exciter (SE-20, SE-21 and SE-29) to be tilted and locked at any angle between 0° and 90° from the vertical axis.

APPLICATIONS

What are the SPEKTRA areas of application?
Learn more … 

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