The wave velocity depends on the materials. And so, for the three tested specimens, the waves have a velocity ranging from 2600 to 5300 m s−1 and a frequency of 5 MHz. In order to carry out the experiments, a gel coating was applied (cf. Fig. 3.1) and so the wave ratio ...
The unpressurized, low-velocity spray is easily controlled and significantly reduces the amount of overspray since the drops settle on the substrate, rather than bouncing off it. This translates into substantial material savings and reduction in emissions into the environment. The nozzles are inherentl...
Strip Chart and Stripped C-Scan Parallel or sequential pulsing/receiving and A/D conversion DAC, DGS, TCG FFT signal analysis - Ultrasonic Spectroscopy 100% raw data capturing General: Quad Core Intel Atom N4200 CPU 1.1 GHz / 2.5 GHz clock 4 GB RAM 128 GB SSD W'10.IOT.Ent on-board co...
The faster the velocity is, the greater the hardness of biological tissues is. SWE has showed a good diagnostic performance and has many applications in the diagnosis of breast, thyroid, liver, kidney, prostate and blood vessel diseases14,15. As a new ultrasonic technology, SMI can quickly, ...
Sound velocity in the wedge material will decrease as it heats up with any high-temperature wedge. The refracted angle in metals will increase as the wedge heats up. For any given test, if this is a concern, then the refracted angle should be verified at the actual operating temperature. ...
The expression for a sinusoidal angular velocity, (x) component in z-direction is as follows:43 vðtÞ ¼ x:s0:cosðxt þ /0Þ x ¼ 2pf Eqn: 1 Eqn: 2 The values for amplitude, s0; frequency, f ; phase angle, and /0 are required as input data to the GMO model. ...
to a frequency as determined from an appropriate calibration table or chart indexed according to materials and/or temperatures. It may be noted that the velocity of sound in an unstressed bolt is also changed when it is stressed. The high stress is, however, concentrated at the smallest (...
Embodiments described herein provide a PMUT that operates at a high frequency for reduced acoustic diffraction through high acoustic velocity materials (e.g., glass, metal), and for shorter pulses so that spurious reflections can be time-gated out. Embodiments described herein also provide a PMUT ...
Embodiments described herein provide a PMUT that operates at a high frequency for reduced acoustic diffraction through high acoustic velocity materials (e.g., glass, metal), and for shorter pulses so that spurious reflections can be time-gated out. Embodiments described herein also provide a PMUT ...
width. The solution is to interrogate the exact position of the probe8, along the length of the x and y-axes after each time interval, and correct any small error during that time interval and convert that distance into a velocity to be added or subtracted during the next time interval. ...