Angle Beam Transducers and Wedges

Thickness and Flaw Inspection Solutions

Miniature Angle Beam Transducers and Wedges are used primarily for testing of weld integrity. Their design allows them to be easily scanned back and forth and provides a short approach distance. Angle beam transducers are single element transducers used with a wedge to introduce a refracted shear wave or longitudinal wave into a test piece.

Advantages:

Three-material design of our Accupath wedges improves signal-to-noise characteristics while providing excellent wear resistance
High temperature wedges available for in-service inspection of hot materials
Wedges can be customized to create nonstandard refracted angles
Available in interchangeable or integral designs
Contouring available
Wedges and integral designs are available with standard refracted angles in aluminum

Applications:

Flaw detection and sizing
For time-of-flight diffraction transducers see page 25
Inspection of pipes, tubes, forgings, castings, as well as machined and structural components for weld defects or cracks

Miniature Screw-In Transducers

Screw-in design 303 stainless steel case
Transducers are color coded by frequency
Compatible with Short Approach, Accupath, High Temperature and Surface Wave Wedges

Mixed Angle Beam Transducers

Transducer Dimensions (in inches)


Nominal Element Size	(A)	(B)	(C)	Thread Pitch
0.50	0.71	0.685	0.257	11/16 - 24
0.375	0.58	0.65	0.257	9/16 - 24
0.25	0.44	0.55	0.22	3/8 - 32

Accupath & Short Approach Wedges

Accupath Wedges

Small wedge footprint
Pointed toe design allows transducer rotation even when the nose is touching a weld crown
Special wedge design for use with 10 MHz transducer

Accupath and Surface Wave Wedge Dimensions* (Miniature Screw-in)

Fits Nominal Element Size (in inches)

0.5

colspan=4

0.375

Colspan=4

0.25

colspan=4

(A)

(B)

(C)

(D)

(A)

(B)

(C)

(D)

(A)

(B)

(C)

(D)

30°

0.72

1.22

0.77

0.54

0.62

1.03

0.42

0.49

0.66

0.45

0.23

45°

0.70

1.03

0.73

0.38

0.60

0.85

0.61

0.32

0.43

0.61

0.43

0.235

60°

0.74

1.19

0.73

0.45

0.67

1.00

0.61

0.367

0.48

0.71

0.43

0.268

70°

0.79

1.34

0.73

0.50

0.69

1.12

0.61

0.406

0.50

0.81

0.43

0.305

90°

1.25

1.84

0.77

1.00

1.48

0.83

1.13

0.45

Miniature Screw-In Wedges for 10 MHz Transducers

Nominal Element Size

Colspan=2

Wedge Part Numbers

Colspan=2

inches

Accupath*

Surface Wave 90°

0.50

ABWM-5ST-X°

ABWML-5ST-90°

0.375

ABWM-7ST-X°

ABWML-7ST-90°

0.25

ABWM-4ST-X°

ABWML-4ST-90°

_{*Accupath Wedges are available in standard refracted shear wave angles of 30°, 45°, 60°, and 70° in steel at 10 MHz.}

Short Approach Wedges

Smallest footprint
Short approach distance allows for inspection closest to the weld crown

Short Approach Wedge Dimensions (Miniature Screw-in)

Fits Nominal Element Size (in inches)

0.5

Colspan=4

0.375

Colspan=4

0.25

Colspan=4

(A)

(B)

(C)

(D)

(A)

(B)

(C)

(D)

(A)

(B)

(C)

(D)

45°

0.70

1.03

0.73

0.38

0.60

0.85

0.61

0.32

0.43

0.61

0.43

0.235

60°

0.74

1.19

0.73

0.45

0.67

1.00

0.61

0.367

0.48

0.71

0.43

0.268

70°

0.79

1.34

0.73

0.50

0.69

1.12

0.61

0.406

0.50

0.81

0.43

0.305