Ultrasonic investigations enable to determine the elastic properties of materials such as concrete and rock. Particularly, they enable the engineer to detect the presence of flaws or fractures, to calculate Young's (or Elasticity) Modulus, and finally to evaluate the homogeneity of the materials under examination and their compressive strength.
The propagation velocity of an ultrasonic pulse through a particular material depends on its density and elastic properties, both referring to quality and strength. The DSP ULTRASONIC can precisely measure, either in laboratory on concrete, rock, plastic, fiberglass, wooden samples; or during on-site investigations, the propagation time of compressive waves (P) through materials.
Compact and unexpensive, this instrument is the simplest and most reliable solution for general purpose needs. On site. it is strongly recommended the use of an ancillary oscilloscope - or a professional device like CMS equipment - to prevent the risk of getting poor (even lost) signals wherever very thick or deteriorated materials are being investigated.
The instumentation includes an acquisition unit with a 2-line display, an alpha-numerical membrane key-panel, two sockets for probes connection. A further couple of sockets is available for the connection of an oscilloscope (not included in the supply) to view and analyse the signal. The signal is digitalized by a 12-bit converter and then controlled and oversampled by the DSP electronics in order to get a resolution of up to 0,05 µsec and precision of ± 0,1µsec.