For Sale: Bruel & Kjaer 4814 Mode Study Vibration Exciter System with 4805 Permanent Magnet
Description: This item has been tested and is functional. It is in excellent cosmetic condition with some signs of use as shown in the photos. Comes with only what is seen in the photos which includes the Mode Study Head Model #: 4814 and the Permanent Magnet Body Type Model #: 4805.
The Vibration Exciter System can be used over a large range of conditions for vibration tests of instruments and structures.
The Mode Study Head Type 4814 has a 25 mm (1 in) peak to peak displacement capability, compliant springs and lightweight moving element. The table is round, 19 mm (0.75 in) in diameter, with a centre insert. This head is intended to be used either singly or in multiple exciter arrays as a force generator. The larger displacement of the 4814 is useful when testing structures or models. In most structural vibration testing applications, either a push rod or a tension wire is connected between the exciter table top and the test object to minimize the coupling of skew forces from the test object to the exciter. Typical structural testing applications would include the determination of the frequency and damping for each other the resonant modes of aircraft elements, such as control surfaces, wings, or landing gear. Hydrodynamicist and aerodynamicists may find the Exciter Head Type 4818 useful for cavitation or vortex shedding studies. Chemists and Chemical Engineers may use this head to vary the rate of chemical reactions or to vibrate plastic extrusion dies.
Please see photos for details.
We welcome potential buyers to ask any questions prior to bidding.
This item has been cleaned and handled in accordance with the manufacturer's instructions
Items are sold as is described in the listing with no refunds or returns unless explicitly specified in the listing.