• Compatible with most Resonant Column systems


• Simple and easy to use


• Ability to graphically determine resonant frequency and damping ratio from free vibrations data


• Ability to use accelerometer and/or proximitor(s) for static and dynamic shear strain measurement


• Automatically calculates Resonant Frequency (from frequency sweep & FFT Analysis of Free Vibration Data), Natural Frequency (from Free Vibration Data & Force Vibration and Phase Shift), Maximum Shear Strain, Shear Velocity, Shear Modulus, and Damping Ratio (from Free Vibration Decay & Half Power Bandwidth)

DESCRIPTION

The GCTS CATS Resonant Column/Torsional Shear module is part of our 32-bit Windows software, CATS (Computer Aided Testing System), which is the most advanced geotechnical software available today. This software test module has greatly simplified the operation of instruments and conduction of the resonant column test by allowing the user to directly program test calculated parameters in the units of interest (such as strain) based on the specimen dimensions. These parameters are calculated in real time and are available for display, and/or graphing. Use of calculated test parameters directly eliminates complex and lengthy pre-calculations required in designing test programs. This allows the user to concentrate on the material behavior rather than on the electronics and equipment operation

The resonant column module test program is easy to setup, where the user enters the starting frequency, the stop frequency, the frequency step, and few other parameters, and the software will conduct the test automatically without user intervention. At the end of the test, the software calculates the specimen results and the user can see the frequency sweep on how the resonant frequency was determined.

The user can also see the forced vibrations data of the specimen (at the resonant frequency), as well as the free vibrations data, from which one of the damping ratios is determined.

See also GCTS Resonant Column/ Torsional Shear Testing Systems (TSH-100 & TSH-200)