Phased array transducers

На фазированных решетках transducers

PA2.5L16-1.0х10-17; N55S-T1-17

Probe: 2.5 MHz, 16 elements, element size: 1,0x10mm, wedge mounting base: 17 mm. Wedge: N55S steel input angle, T1 parameters, probe mounting base: 17mm.

Phased array ultrasonictesting is a more prospective method compared to conventional NDT methods. A phased array piezoelectric transducer (PZT) system transforms groups of pulses into beams that move the same direction from the pulser at the output and the receiver combines them at the inputthe same way. The pulser controls an electron beam and its speed and enables to make different profiles in the PZT from ultrasonic beams (corner markers), manage these profiles and program them by generating different electronic scanning schemes.

Advantages of phased arrays:

The angle, focal length, and spot size of the beam can be controlled and programmaticallydirected. The angle of beam incidencecan be optimized by selecting a control point, as well as the signal-to-noise parameter for each type of a test piece.

A wide beam scanning rangeis within 90° in any direction with application of the inclinedwedges. Simple and clear visualization of the test object, automatic detection of the depth of the defect, the angle of location and its equivalent area.

Technovotum offers a wide range of phased array probes and refractive wedges. The probes are linear with sequentiallyfed piezoelectric elements, overall dimensions and a spacingbetween elements depend on the number ofthe elements. 16-and 32-element probes with linear wedges of 0° and inclined 36° are available to order.