Measurement Testing

Mjr · Site Admin Joined: 13 Jul 2005 Posts: 294

Vibration Research Corporation's Electrodynamic Shaker VR520 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 VRC's VR565 amplifier. It also features a 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 resonance1 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
Acceleration1 Bare table - 65 g pk
0.2 lb load - 32 g pk
1.0 lb load - 10 g pk
Cooling Natural convection
1 Load dependent

Contact information:

http://vibrationresearch.com

Address:

2385 Wilshere Dr. Suite A
Jenison, MI 49428 USA
(near Grand Rapids)
Phone Numbers:
Office: (616) 669-3028
Fax: (616) 669-5337