Что из себя представляет пьезоэлемент в ПЭП?

From the lecture by PhD, Associate Professor of Bauman Moscow State Technical University A.L. Remizov you will learn: 0:12 direct and inverse piezoelectric effect 01:04 piezoelectric plate materials 04:08 piezoelectric plate configurations for ultrasonic testing, wavelength dependence on piezoelectric plate thickness 05:41 what happens if the flaw detector settings specify a frequency that does not correspond to the frequency of the piezoelectric transducer used? 06:06 piezoelectric plate thicknesses for piezoelectric transducers with standard characteristics 07:07 what determines the frequency (length) of the wave excited by the piezoelectric plate? 07:48 piezoelectric element design 10:24 what is piezoelectric plate polarization and how does it determine the type of wave excited by the piezoelectric plate? #qualitycontrol #lecturesonNT #nondestructivetesting #flawdetector #ultrasonictesting