This device is designed to measure the longitudinal, transverse, and torsional resonance frequency of concrete and rock samples. It operates by applying an impact to the sample, which creates a frequency range that is analyzed to determine the resonance frequency. This method differs from the forced resonance frequency device. The resonance frequency obtained can be used to calculate the dynamic elastic modulus and Poisson's ratio of the sample.
Technical specification:
● 2.3 inch touch screen
● Automatic measurement of resonant frequency values
● Adjustable stimulation level
● Storing information on the device's memory
● Sampling rate: 100 kHz (Nyquist: 50 kHz)
● Sampling resolution: 12 bits
● Internal rechargeable battery (approximately for 10 h operation)