Transducer Selection
C:The contact transducer is a single element transducer with a p-wave sample. All the contact transducermatching surfaces are
equipped with corundum slices. The corundum slices not only provide excellent acoustic impedance with metal materials, but
also wear resistance can extend the life of the transducer!
A:It can realize the transformation of wave type. Because the integral angle beam transducer is inclined to the surface, it can be
used to detect the parts that can not be reached by the direct beam, or the area where there is an Angle between the direction of the defect and the detection surface.
F:This is a method to detect defects by relying on the diffraction energy obtained from the "end Angle" and "end point " of the
internal structure of the specimen to be examined (mainly refers to the defect), which is used for the detection, quantification
and location of defects.Good reliability, high quantitative accuracy, detection is simple and convenient, high efficiency, can be
suitable for automatic and semi-automatic scanning device, can determine the relative position of the defect and the probe,
more conducive to the identification and analysis of defects!
P:The protected face transducer is a single element longitudinal wave transducer with a screw cap, unique structure design,
according to different application needs to change the protective sheet and wear sleeve, the transducer is suitable for rough
surface, small curvature surface.Greatly enhance the flexibility of the transducer, while the replaceable protective plate greatly
prolong the life!
D:The delay line transducer is a single element wide-band longitudinal wave transducer, which is often used to detect the thickness
of materials to be examined. Different thickness of materials choose different thickness of delay block, in addition, the
transducer can also be used for high temperature material detection.
W:Angle beam probe is a single element transducer that can be used alone or in combination with wedge, which can realize
both p-wave and s-wave detection. The knob thread design can quickly disassemble wedge, which can be used to detect the
area that the transducer can not be detected in the workpiece.
TR:Double element transducer is a longitudinal wave transducer with independent transmitting and receiving wafers. It is widely used in coating measurement, thickness measurement, corrosion monitoring, etc., with high penetration power and
no influence of blind zone of initial wave.According to the size and approximate location of defects, the transducers with different frequencies and focusing depths can be selected.
TRL:For small fatigue crack depth is shallow, vertical incidence longitudinal wave transducer detection sensitivity is low, the
use of oblique incident waves of dual transducer, the can effectively improve the detection sensitivity, improve the defect detection rate, twin inclined design of transducer to detect the defects of a certain Angle, improve the sensitivity of the near sur-face defects. It is often used for testing coarse grain materials such as welded joints of austenitic stainless steel.
TRS:Dual element s-wave oblique transducer initial wave width is narrow, clutter is less, signal-to-noise ratio is high, for some
thickness of less than 8mm thin plate weld detection, often use dual transducer s-wave oblique transducer, this transducer can
be detected on the edge of the weld, can not wear the weld flat processing, in some special structure of the member can also be
flexibly used.
I:Immersion transducer is a single element longitudinal wave transducer, immersion transducer water as a coupling agent, can
be fully immersed in water for a long time to use,high damage sensitivity, liquid coupling sound energy loss is small, can overcome the workpiece surface finish is not enough or surface shape caused by the sound energy loss factors, and probe piezoelectric effect caused by the "blind area" submer-ged in the liquid.