Suspended Large Shaker - Qsls
The Qsls large shaker uses a new patented solution for combined shaker suspension and force generation. This enables effective decoupling from test objects over a wide frequency range in combination with a high force density and high electric efficiency. The Qsls allows testing on large or very large structure with a practicality and accuracy well above any other solution in the market. This Qsls shaker replaces an instrumented sledgehammer or large externally supported shakers, and can be used in any inclination and in tight access situations.
As for all other Qsources shakers, the lack of any external support enables fast instrumentation. It is self-alining, so there’s no need to align the shaker, force sensor and test object. The shaker is mounted on and supported by the test structure, and can be glued onto the test object in any orientation. Its narrow design, with high force density, makes it possible to excite in tight spaces around machinery.
The force sensor is integrated and the Qsls thumper shaker has various mechanical, thermal and electric protections for reliable and efficient use.
Features
Market unique size and decoupling suspension in any inclination
The void in the adhesive cups allow the user to place common commercial accelerometers in-line with the force, for accurate accelerance or power determination
Extended frequency range for large structures like mining equipment, space launch vehicles, large aircraft fuselage, off-shore, ships, steel bridges, etc.
Internal force sensor with long term stable calibration
Measurement techniques
Transfer Path Analysis and sub-structuring
inverse source or load identification
Experimental Modal Analysis
Statistical Energy Analysis and equivalent
Numerical model correlation and improvement
Main characteristics
Integrated decoupling suspension
Built-in mechanical, thermal and electric protections
Easy to apply using the supplied adhesive cups and fast adhesive, or M8 thread
Test objects mass typically 100 to 40000 kg
Coupled mass to the test-object around 60 gr
Diameter 72 mm, 175 mm length
Core frequency range 22-800 Hz*
Extended frequency range 6-1200 Hz**
Force level 80 N RMS random
Sine 20 Hz, force level 400 N peak to peak
Availability
The Qsls shaker is available directly from Qsources and marketed in cooperation with Head Acoustics, and our other partners.
