Ultrasonic Crack Testing Machine
ULTRASONIC DEFECT DETECTION IN SOLID SHAFTS. That although the equipment is highly complicated. Magnetic crack detector and ultrasonic testing. Flaw detection is the most commonly used technique among all the applications of industrial ultrasonic testing. Generally, sound waves of high frequency are reflected. Cracks, laminations. Ultrasonic testing can also be used to measure thickness of metal sections. Both for calibrating the equipment and for.
• Digital scope, 2 MHz sampling rate, 12 bit resolution • Advanced picking algorithm providing the real arriving time of the pulse • Signal processing by FFT method (Fast Fourier Transform) • Assessment of concrete strength with combined method Ultrsonic velocity/Rebound index (SonReb) • 7 selectable pre-amplifier gains (impulse amplitude) • Transmitter pulse 2500 V • Transit time up to 16 ms with 0.1 µs reolution • Slot for memory card to save data (2 GB=30000 tests) • 6” Multifunctional touch screen display. The PULSONIC is used for measuring the velocity of ultrasonic pulses through a concrete section providing informations on cracks, voids, strength, and giving quick estimates of dynamic modulus of elasticity on site or in the laboratory. It can also be used for estimating times for formwork striking. The pulse velocity can be combined with the rebound hammer value for the strength evaluation of concrete. The unit includes an excel spreadsheet for the acquisition of the waveform on the PC for further elaborations. Main applications • Standard UPV measurement with incorporated oscilloscope.
Conforming to EN 12504-4 and ASTM C597. Also suitable for determining the Dynamic Modulus of Elasticity. The meter features a very accurate measurement of the transit time.
• Measurement of the Attenuation of the Transmitted Energy. Very often the transit time only is not enough to identify disomogeneities and little damages as for example microcracking of concrete which are, on the contrary, well located with this technique by properly processing the acquired waveforms. • Frequency Spectrum Analysis by FFT Method (Fast Fourier Transform-Algorytm). For determining the natural frequency of the ultrasonic pulse transmitted through the material. This determination is suitable for the examination of the pulse path and gives indications about possible cavities, delaminations, multi-layer elements or othjer similar dishomogeneities. • Concrete Strength Evaluation combining the Rebound number and the UPV transit time. It is possible to use our digital test hammer to obtain the avarage value of rebound number.
This value can be insert in the dedicated menu of UPV tester combining a typical surface measurement with the deeper UPV transit time in order to obtain a more reliable and extended information. • Other applications. To identify and evaluate Crack depth, Honey combing, Injection quality. Technical specifications The Ultrasonic Pulse Analyzer features a potable sturdy case, a large 6” backlight touch screen display making easy and practical the use of the apparatus. Accessories Testing heads (probes) The standard 50 kHz transmitter and receiver heads are supplied with the tester. Different heads are available with different nominal working frequency, 24 and 150 kHz which is the usual range for normal concrete: the highest (150 kHz) is indicated for homogeneous concrete, the lowest (24 kHz) for heterogeneous concrete.
Model 58-E0046/5 special probes with exponential profile, are used for the identification of minute cracks, air bubbles or material with low density. Two pieces are required. Model Nominal frequency (kHz approx.) Dimensions (mm) 58-E0046/30 24 Dia.
50x52 58-E0046/33 150 Dia. 50x52 58-E0046/5 54 Dia. 7/50x82 (exponential profile) 58-C0181/DGT User programmable digital concrete hammer. 110-230V, 50-60Hz, 1Ph. Concrete test hammer type N. Aluminium body. Supplied with hard plastic carrying case. Conforming to EN 12504-2 and ASTM C805 Spare parts 58-E4800/P Piezoelectric head for ultrasonic tester. Puzzles By George Summers Ebook. Nominal frequency 50 kHz, dia.30mm x 50mm.