ultrasonic testing - ορισμός. Τι είναι το ultrasonic testing
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Τι (ποιος) είναι ultrasonic testing - ορισμός

NON-DESTRUCTIVE MATERIAL TESTING USING ULTRASONIC WAVES
Ultrasonic inspection; Ultrasonic echo attenuation; Sonic tomography
  • engine]].<br />
''Step 1'': The UT probe is placed on the root of the [[blade]]s to be inspected with the help of a special [[borescope]] tool (video probe).<br />
''Step 2'': Instrument settings are input.<br />
''Step 3'': The probe is scanned over the blade root. In this case, an indication (peak in the data) through the red line (or gate) indicates a good blade; an indication to the left of that range indicates a crack.
  • spline]] cracking
  • phased array]] instrument. The scanner, which consists of a frame with magnetic wheels, holds the probe in contact with the pipe by a spring. The wet area is the ultrasonic couplant that allows the sound to pass into the pipe wall.

Ultrasonic nozzle         
  • High Temperature Ultrasonic Nozzle
Ultrasonic Nozzle
Ultrasonic nozzles are a type of spray nozzle that use high frequency vibrations produced by piezoelectric transducers acting upon the nozzle tip that create capillary waves in a liquid film. Once the amplitude of the capillary waves reaches a critical height (due to the power level supplied by the generator), they become too tall to support themselves and tiny droplets fall off the tip of each wave resulting in atomization.
Usability testing         
TECHNIQUE USED IN USER-CENTERED INTERACTION DESIGN TO EVALUATE A PRODUCT BY TESTING IT ON USERS
Usability study; UI Testing; Usability test; Hallway testing; Hallway usability testing; Usability Testing; User testing; UX testing; User study; User test; Guerrilla usability
Usability testing is a technique used in user-centered interaction design to evaluate a product by testing it on users. This can be seen as an irreplaceable usability practice, since it gives direct input on how real users use the system.
All-pairs testing         
ALSO KNOWN AS PAIRWISE TESTING, A SOFTWARE TESTING METHOD
Combinatorial Interaction Testing; All-pair testing
In computer science, all-pairs testing or pairwise testing is a combinatorial method of software testing that, for each pair of input parameters to a system (typically, a software algorithm), tests all possible discrete combinations of those parameters. Using carefully chosen test vectors, this can be done much faster than an exhaustive search of all combinations of all parameters, by "parallelizing" the tests of parameter pairs.

Βικιπαίδεια

Ultrasonic testing

Ultrasonic testing (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse-waves with center frequencies ranging from 0.1-15 MHz, and occasionally up to 50 MHz, are transmitted into materials to detect internal flaws or to characterize materials. A common example is ultrasonic thickness measurement, which tests the thickness of the test object, for example, to monitor pipework corrosion.

Ultrasonic testing is often performed on steel and other metals and alloys, though it can also be used on concrete, wood and composites, albeit with less resolution. It is used in many industries including steel and aluminium construction, metallurgy, manufacturing, aerospace, automotive and other transportation sectors.

Παραδείγματα από το σώμα κειμένου για ultrasonic testing
1. Marshall said the company believed ultrasonic testing of pipeline wall thickness was sufficient.