What is a vibration shaker?

A shaker is an electromagnetic device that is used for vibration testing for excitation of the structure under test. It's used for modal or endurance testing.

What are the different designs of vibration shakers?

We have 3 different vibration shaker design types for different applications: <ul> <li>Permanent magnet shaker</li> <li>Modal shaker</li> <li>Inertial shaker</li> </ul>

What is a Permanent magnet vibration shaker?

Permanent magnet vibration shakers (DS-PM) are shakers with a mounting table on top, on which you can place your device under test.

What is a Modal vibration shaker?

Modal vibration shakers (DS-MS) excite the structure under test by a stinger and are used for larger structures or structures that can't easily be mounted to the Permanent magnet shaker table.

What is an Inertial vibration shaker?

Inertial vibration shakers (DS-IS) are small in size and weight and hence used by mounting or pressing against the structure. They are portable and simple to use.

What sizes of shakers are available from Dewesoft?

Modal and Permanent magnet shakers come in 4 different sizes with 20N, 100N, 250N, and 440N of sinus output force. The Inertial shakers come in 4 sizes with 5N, 10N, 20N, and 40N of sinus output force.

Can I use the vibration shakers for a prolonged time?

Yes, PM/MS-20 and PM/MS-100 come with a pneumatic coupling that allows you to connect the shaker to compressed air for cooling. The PM/MS-250 and PM/MS-440 come with a cooling blower in the package.

Do I need to buy an amplifier to drive the shaker?

All Dewesoft vibration shakers come "ready to work" out of the box. Smaller PM & MS shakers come with an integrated amplifier. Larger PM & MS, as well as all, IS shakers come standard with a proprietary external amplifier.

12 reviews

Electrodynamic Vibration ShakersGeneral-purpose, Modal and Inertial Exciters

Name: Electrodynamic Vibration Shakers
Brand: Dewesoft®
Rating: 4.8 (19 reviews)

Our range of shakers covers forces from 5 N to 440 N and is available in general-purpose, modal, and inertial configurations. They feature both integrated and stand-alone amplifiers that are easy to use. These electrodynamic permanent magnet shakers are compact, lightweight, and powerful, making them ideal for modal and vibration testing. Despite their small size, they offer a high DUT capacity.

DynaLabs modal and inertial vibration shakers line

Electrodynamic Vibration Shakers highlights

Lightweight, Durable, Portable

Vibration shakers are built with high-quality materials for durability and portability. Their compact, lightweight design makes them easy to transport and mount, ensuring excellent mobility for a wide range of applications.

Included Integrated Amplifier

Small-sized PM and MS shakers are designed with integrated amplifiers, making setup and operation simple and improving portability. Just plug in the power cable, and the shaker is ready to use. Some models also offer external amplifiers for added performance.

Integrated Signal Generator

Most vibration shakers feature built-in sine signal generators, enabling quick testing and structural behavior analysis. This eliminates the need for additional external equipment, making experimentation seamless and efficient.

Exceptional Low-Frequency Performance

These shakers provide optimal force over a wide frequency range, typically from 10 Hz to 3.000 Hz. Smaller models can reach frequencies up to 7.500 Hz, making them versatile for various testing applications.

Adjustable Trunnion and Handles

Adjustable trunnion bases and ergonomic handles enable the shakers to be positioned in any orientation, providing greater flexibility for testing.

Integrated Screen

Most small and larger amplifiers include an integrated display that shows the signal frequency or operating mode. This feature allows users to quickly identify whether the operating mode is set to external or internal signals and easily monitor frequencies, ensuring simple yet precise testing.

Best Amplifier for the Job

Small shakers feature a compact external amplifier that delivers high power despite its size. Larger shakers offer two amplifier options: a lightweight, portable model or a more powerful one with superior signal quality, though larger and heavier.

Dewesoft quality and 7-year warranty

Enjoy our industry-leading 7-year warranty. Our data acquisition systems are made in Europe, utilizing only the highest build quality standards. We offer free and customer-focused technical support. Your investment into the Dewesoft solutions is protected for years ahead.

Permanent magnet shakers

Designed for vibration and modal testing, these shakers offer exceptional performance in a small package. Despite their compact size, they boast a high Device Under Test (DUT) capacity. The PM-20 and PM-100 models come equipped with integrated amplifiers and sine wave signal generators, featuring frequency adjustments in 1 Hz increments.

Highlights:

Compact, lightweight, and powerful—perfect for general-purpose vibration testing.
Versatile for modal testing with the addition of a stinger set and adapter.
Integrated amplifiers and sine signal generators with adjustable frequencies (1 Hz to 15.000 Hz).
High DUT capacity, even in a small form factor.

Advantages:

Durable, portable, and user-friendly.
Adjustable trunnion base for flexible positioning.
Wide frequency range to accommodate diverse testing needs.

Applications:

Vibration testing of micro parts, assemblies, and electronics.
Shock testing and sensor calibration.
Fatigue and resonance testing.
Ideal for educational and research purposes.

DynaLabs permanent magnet vibration shakers

Inertial shakers

Traditional electrodynamic shakers used in modal testing and in-flight aircraft tests are bulky and require time-consuming mounting processes. In contrast, the innovative design of Inertial Shakers offers exceptional portability and mobility. Their compact size makes them easy to mount and ideal for handheld applications, enabling quick and efficient measurements.

Highlights:

Compact and lightweight for maximum portability and versatility.
Optimized for low-frequency performance with the ability to mount at any angle.

Advantages:

Easily mountable at any angle, with high mobility for handheld use.
Smooth operation guided by low-friction bearings.
Exceptional low-frequency performance.

Applications:

Vibration and modal testing.
Automotive squeak and rattle testing, building resonance analysis, and more.
Widely used in civil engineering, shipbuilding, and educational research.

Amplifier integration

Smaller vibration shakers come with built-in amplifiers, providing plug-and-play convenience, a compact design, and excellent mobility.

The Inertial Shaker line features small yet powerful external amplifiers, offering the same functionality as integrated amplifiers while maintaining portability.

For 250N and 440N shakers, which require external amplifiers, we offer two options:

Lightweight and compact amplifier: Ideal for mobile applications.
Larger, high-performance amplifier: Delivers more power and superior performance, suitable for demanding tasks.

Data acquisition system integration

Our high-performance data acquisition systems are designed to complement our vibration shakers, creating an all-in-one solution for vibration testing and analysis. For the best combination, we recommend the SIRIUS modular data acquisition system, equipped with analog outputs for exceptional flexibility.

Key Features:

Direct IEPE sensor inputs with a 160 dB dynamic range for precise measurements.
Universal signal amplifiers compatible with virtually any sensor or signal type.
TEDS IEEE 1451.4 technology for automatic sensor detection, recognition, and configuration in the software.
Industry leading 7-year warranty - read more.

With our award-winning data acquisition software, you can set up measurements in under a minute. Each system includes:

A software license with free lifetime upgrades—no annual maintenance or upgrade fees.
Free online training courses for ease of use.
Free technical support

Our modular and expandable systems grow with your needs. Imagine an FFT analyzer with thousands of channels—our systems can scale from a single channel to an unlimited number, providing unmatched flexibility and future-proof performance.