General Description
The VR520 Electrodynamic Shaker is a rugged, full featured, small permanent magnet shaker. It is ideally suited for the production screening of small components or for larger transducer calibration systems. The shaker features a 2.125 inch diameter table with multiple attachment points and up to 13 pounds force capability when matched with the VR565 amplifier. It also features an extraordinary 0.75 inch stroke (usually available only in larger shakers), which facilitates modal testing of resonant structures. These features ease fixture requirements in production and unique test applications. The rugged, damped dual flexure armature suspension system offers high axial compliance and lateral stiffness. This design allows testing of unsupported loads with minimal suspension related noise problems.
Features
- 0.75 inch stroke
- 2.125 inch diameter table
- Payloads up to 3 lbs
- Low stray magnetic field
- Trunnion mounting base
- High lateral stiffness armature suspension
- Air cooled
- Permanent magnet field
Shaker Parameters
| Physical |
| Armature weight |
0.2 lb |
| Suspension stiffness |
15 lb/in |
| Fundamental resonance* |
6000-8000 Hz |
| Stray Magnetic Field |
Measured 1.0" above table - less than 15 gauss
Measured 0.5" from body - less than 15 gauss |
| Dimensions |
6.5" H x 4.8" W x 4.25 D |
| Shaker weight |
11 lbs |
| Performance |
| Acceleration* |
Bare table - 65 g pk
0.2 lb load - 32 g pk
1.0 lb load - 10 g pk |
| Cooling |
Natural convection |
| * Load dependent |
|
