Previous step

Select the product you are interested in (1)

Next step
  • SIRIUS
    SIRIUS
  • SBOX
    SBOX
  • R1DB/R2DB
    R1DB/R2DB
  • R3
    R3
  • R4
    R4
  • R8
    R8
  • MINITAURs
    MINITAURs
  • DEWE-43A
    DEWE-43A
  • SIRIUS MINI
    SIRIUS MINI
  • SIRIUS waterproof
    SIRIUS waterproof
  • SBOX waterproof
    SBOX waterproof
  • KRYPTON
    KRYPTON
  • KRYPTON CPU
    KRYPTON CPU
  • R8rt
    R8rt
  • IOLITE - DAQ and Control
    IOLITE - DAQ and Control
  • CAN Interfaces
    CAN Interfaces
  • GPS and IMU Devices
    GPS and IMU Devices
  • Aerospace Interfaces
    Aerospace Interfaces
  • Video Cameras
    Video Cameras
  • Current Transducers
    Current Transducers
  • Accelerometers & Angle Sensors
    Accelerometers & Angle Sensors
  • Vibration Shakers
    Vibration Shakers
  • Dewesoft X3
    Dewesoft X3
  • Developers
    Developers
  • DSI adapters
    DSI adapters
  • EtherCAT accessories
    EtherCAT accessories
  • Battery packs
    Battery packs
  • Displays
    Displays
  • Mounting plates
    Mounting plates
  • Acoustic Calibration Services - IEC
    Acoustic Calibration Services - IEC
Thanks for contacting us. One of our specialists will get in touch as soon as possible.

Vibration Shakers

Full range of modal and inertial shakers with integrated and easy-to-use amplifiers. Dewesoft permanent magnet shakers are compact, lightweight and powerful general-purpose shakers which can be used for modal and vibration testing. They have a high DUT capacity despite their small sizes.

Main Features

  • INTEGRATED AMPLIFIER: PM-20, PM-100, MS-20 and MS-100 shakers have integrated amplifiers. It only requires to plug-in the one cable and the shaker is ready to run. 
  • INTEGRATED SIGNAL GENERATOR: Besides having an integrated amplifier, PM-20, PM-100, MS-20, and MS-100 shakers have integrated signal generator as well. Of course, you can also generate an analog output signal from the SIRIUS DAQ system but this option gives you the chance to try the test system or the shaker or make some simple test to understand their structural behavior.
  • TRUNNION AND HANDLES: All MS and PM shakers have trunnion and handles. These parts allow shaker to be positioned in any orientation and position.
  • INTEGRATED SCREEN: This feature can be used only with an integrated signal generator. It shows the frequency of the generated signal. By visualizing generated signal frequency it is possible to set the shaker to a certain frequency from 1 Hz to 15 kHz and even can see the behavior of the structure under excitation with a certain frequency.
  • SMALL AMPLIFIER BOX FOR INERTIAL SHAKERS: All inertial shakers are using the same amplifier box. This box is also capable of generating sinus signals and can be used for 3rd party shakers as well. Small, all-in-one box can be customized to generate different signals like white or pink noise or different forms.

Permanent Magnet Shaker

Dewesoft permanent magnet shakers are compact, lightweight and powerful general-purpose shakers which can be used for modal and vibration testing. They have high DUT capacity despite their small sizes. DYN-PM-20 and PM-100 have an integrated amplifier and a sine wave signal generator where the frequency can be adjusted from 1 Hz to 15,000Hz.

Advantages:

  • Lightweight, durable, portable and easy to use
  • Adjustable trunnion base provides a high degree of flexibility
  • Broad frequency range
  • Embedded power amplifier and signal generator for PM-20 and PM-100

Applications for PM Shakers

Permanent Magnet shakers are used for Vibration testing and Shock testing:

  • Vibration testing of micro parts, assemblies, and electronics Modal testing
  • Shock testing
  • Sensor calibration
  • Separation and compacting of powders
  • Fatigue and resonance testing
  • Velocity transducer or high-speed actuator
  • Mechanical impedance measurement
  • Education and research

Modal Shakers

Modal testing can be performed with modal hammers or shakers. If high-frequency excitation content or signal-controlled testing is desired, then modal shakers are the only excitation solution. Dewesoft modal shakers are lightweight and powerful modal shakers which can go up to 15,000 Hz and provide force levels up to 440N with a maximum 25mm stroke.

Advantages:

  • Modal stinger can be easily adjusted by the through-hole armature
  • Lightweight, durable, portable and easy to use
  • Adjustable trunnion base provides high flexibility
  • Up to 25mm stroke and broad frequency range

Applications for Modal Shakers

Modal shakers can be used for Modal testing and Structural Dynamics. 

The series of Dewesoft modal shakers covers a wide range of structures for dynamic characterization from electronic boards and sub-components to machinery, vehicles and aircraft, even constructions.

  • Components, Machinery, Vehicles, Aircraft, and constructions
  • Aerospace and
  • Automotive

Modal Testing is a prerequisite for design and product validation in aerospace and automotive industries as well as many others.

Inertial Shakers

The shakers used in modal testing and in-flight tests of aircraft are usually electrodynamic shakers. However, the traditional shakers are not very portable and the attachment process takes time. Dewesoft inertial shakers are easily mounted and have great mobility. It can be used as a handheld.

Advantages:

  • Compact and lightweight design
  • Superior low-frequency performance
  • Any angle mounting
  • Low friction bearing guided

Applications for Inertial Shakers

Inertial shakers are used for Vibration and Modal testing. Inertial shakers are used for testing car chassis, squeaks and rattle testing in cars, civil engineering prototype testing, building structures, floor loading resonances, ships’ flight decks, helicopters rotor simulation, submarines, geophysical surveys, and vibration cancellation systems.

  • Civil engineering
  • Automotive
  • Aerospace
  • Shipbuilding
  • Education and research

Modal Test

In real life applications, machine parts and mechanical systems are rarely under static loading. Most of the time they are excited by dynamic loads. The structure responds to these dynamic loads according to its dynamic parameters such as natural frequencies and mode shapes. Therefore, an engineer has to have a solid insight into the dynamic behaviour of the structure which has been designed. The process of finding the dynamic behaviour of a structure is called structural system identification.

Structural system identification consists of finding the transfer function of the system which is established by finding the modal parameters of the structure such as, natural frequencies, damping, modal vectors, and residues.

The transfer functions of a structure can be obtained by mathematical modelling or by experimental methods. The experimental way to obtain the transfer function of a structure is achieved by measuring the response of the structure to a measured input. The responses are generally acceleration and the inputs or excitations are generally impulses or random/sine signals.

More information on the Modal Analysis application page.

Modal Test

The impulse signal is easily generated by a modal hammer with a force transducer attached at its tip. The random or sine signal excitation requires modal shakers. Moreover, if high-frequency excitation content or signal-controlled testing is desired, then modal shakers are the only excitation solution. Dewesoft modal shakers are lightweight and powerful modal shakers which can go up to 15,000 Hz and provide force levels up to 440N with a maximum 25mm stroke.

The modal shaker is attached to the structure and the desired excitation signal is applied to the structure via a signal generator. In the meantime, the responses of the structure are
measured and Frequency Response Functions are calculated which are used in the Modal Analysis calculations.

More information on the Modal Analysis application page.

Related products