electrodynamic shakers and accessories
SignalForce Products Comprise Turn-Key Vibration Test Systems that Include: Electrodynamic Shakers (both Air- and Water-Cooled), Power Amplifiers, Slip Tables, Head Expanders, Fixtures, and Thermal Barriers for Environmental Testing
Data Physics sales and support are adept at understanding user applications and providing properly configured vibration test systems to meet both current and future needs.
All SignalForce vibration test systems, or vibration shaker systems, including accessories such as head expanders and slip tables, are manufactured in the USA or the UK by Data Physics. Service is provided from both direct and partner service centers located around the globe, with direct service centers on both coasts of the USA, the UK, China, and India. Learn more about shaker configurations and considerations.
How to Choose the Correct Shaker for Vibration Testing
The first step in selecting the correct shaker is to define the test profiles that are to be run (sine, random, shock, replication, etc.) and to gather dimensional information on the test article and fixtures that will need to be used (LxWxH and total mass).
For any shaker, the added mass of the device under test (DUT) and fixtures moves the performance envelope from the black line to wherever the red line might be. Shaker sizing calculations are done to make sure all test profiles will fit within the envelope.
This graph is a generic (frequency domain) performance envelope for any shaker, as defined by its maximum displacement, maximum velocity, and maximum force.
Air Cooled Shakers
Force outputs from 2 lbf (9 N) to 15,000 lbf (66.7 kN)
Air cooled shakers are lower cost, more versatile and easier to install and maintain than water cooled shakers. Air cooled shakers are workhorses for sine, random, shock, transient mixed mode and long time history replication applications. High displacement options are available for requirements such as transportation testing and classical shock testing. High lateral and torsional stiffness ensure maximum stability and support for this electrodynamic shaker.
- Force outputs from 2 lbf (9 N) to 15,000 lbf (66.7 kN)
- Axial guidance bearings
- Up to 3 inches (76.2 mm) of peak-peak displacement from 3,000 lbf (13.3 kN)
- Special suspension options for structural test
- Automatic load support and armature centering
- Rigid trunnion mounting – allows for locking the shaker down to a seismic base for maximum performance at very low frequencies
- Lin-E-Air suspension – ideal isolation for preventing vibration transmission into the facility floor
Water Cooled Shakers
Force outputs from 16,000 lbf (71 kN) to 50,000 lbf (222 kN)
Water cooled shakers are typically used for larger payloads and more demanding structural testing applications. By utilizing dual hydrostatic bearings, payloads with high overturning moments can be tested without the need for external guidance systems. Water cooled shaker systems generate comparably lower acoustic noise output and lower demand on facility HVAC systems. Water cooled shaker bodies are completely sealed, making them ideal for both clean room and hazardous environments.
- Force outputs from 16,000 lbf (71 kN) to 50,000 lbf (222 kN)
- Static payload support up to 3,000 lbs. (1,365 kg)
- Up to 3 inches (76.2 mm) of peak-peak displacement
- Dual hydrostatic bearings for excellent axial guidance and moment restraint
- Automatic load support and armature centering
- Rigid trunnion mounting or Lin-E-Air suspension mounting options
Force outputs from 7 lbf (30 N) to 56 lbf (250 N)
Structural excitation of large structures can often present considerable challenges. The Data Physics line of inertial shakers can be mounted onto a large mechanical or civil structure to generate forces for dynamic response measurements. The inertial shakers can also be used for active noise cancellation applications. Inertial shakers are completely self-supporting and can be mounted onto the structures at any angle. The central spigots are connected to the structure and the shaker body provides the inertial mass.
- Force outputs from 7 lbf (30 N) to 56 lbf (250 N)
- Tunable suspension to produce peak force at low resonant frequencies
- Convection cooled, with options for direct airline or standard blower cooling
Force outputs from 18 lbf (80 N) to 475 lbf (2.1 kN)
Modal shakers are used to excite a structure via the central spigot with a connecting rod (stinger) so that energy can be input without the mass or dynamics of the shaker affecting the response of the structure. The GW Series modal shakers exhibit almost zero axial stiffness through the use of a linear guidance bearing. They also bear no load and have no suspension system.
Data Physics Overview: High-performance test and measurement solutions for noise and vibration applications
LE-5022-3 water cooled shaker offers up to 50000 lbf (222 kN) force
How to configure your shaker for
High efficiency power amplifiers
Better Power for Better Results
Data Physics SignalForce power amplifiers provide very high levels of efficiency, performance, reliability and serviceability. Their compact power modules enable high power configurations in a minimum of space.
Our amplifier designs include full use of Faraday cages, compartmentalization, filtered interconnections, segmented wiring, common mode chokes for symmetrical currents, mains filters, optical coupling of signals and screened cables to minimize EMC considerations. Full CE compliance is observed.
- Linear amplifiers from 30 VA to 1 kVA
- Digital switching amplifiers from 1 kVA to 405 kVA
- Up to 95% efficient
- Switches at >105 kHz
- Integral field & degaussing supplies
- Safety interlocks
- Protection against over current and over temperature
- E-Link remote control. Control and monitor the power
amplifier from your PC in the control room
- Drives all shaker brands
Vibration Test System Accessories
Expand Your Capabilities
SignalForce vibration test system accessories include a wide selection of slip tables, head expanders and fixtures. Standard models as well as application specific solutions are available to cover a wide range of uses. SignalForce accessories are engineered to provide optimal, long-lasting performance.
- Slip tables
- Slip table guidance
- Head expanders
- Head expander guidance systems
- Multishaker configurations and couplings
- Shaker mobility options
- Noise reduction enclosures
- Chamber interfaces
PARTS AND SERVICE
What You Need to Stay Up and Running
For your peace of mind, you want to know you can access high quality support quickly and easily. You want to choose service levels that meet your specific business requirements and you want competitively priced support to ensure a lower cost of technology ownership for your company.
Our service department employs a uniquely qualified and experienced team to provide shaker maintenance services for all models and brands including, installation, relocation, repair, calibration and maintenance.
Data Physics manufactures spare parts for all current generation SignalForce shakers as well as legacy Ling and Gearing & Watson shakers. This includes parts for very old shakers built long ago. Additionally Data Physics can provide select parts for competitive brands.
Access SignalForce Shakers and Accessories Literature
Download data sheets and brochures in pdf format.