Angle Beam Transducers

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

Nominal Element Size		Freq.	Transducer Part Numbers
inches	mm	MHz	ACCUSCAN-S	CENTRASCAN	VIDEOSCAN
0.50	13	1.0	A539S-SM	C548-SM	V539-SM
		2.25	A540S-SM	C540-SM	V540-SM
		3.5	A545S-SM	C545-SM	V545-SM
		5.0	A541S-SM	C541-SM	V541-SM
		10	A547S-SM	-	V547-SM
0.375	10	1.0		A548S-SM	-
		1.5	A548S-SM	-	-
		2.25	A549S-SM	C549-SM	V549-SM
		3.5	A550S-SM	C550-SM	V550-SM
		5.0	A551S-SM	C551-SM	V551-SM
		10	A552S-SM	-	V552-SM
0.25	6	2.25	A542S-SM	C542-SM	V542-SM
		3.5	A546S-SM	C546-SM	V546-SM
		5.0	A543S-SM	C543-SM	V543-SM
		10	A544S-SM	C544-SM	V544-SM

Trasnducer 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 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

Miniature Screw-In Wedges for 1-5 MHz

Nominal Element Size		Wedge Part Numbers
in	mm	Short Approach †	Accupath*	High Temp* 500°F (260°C)	Very High Temp* 900°F (480°C)	Surface Wave 90°
0.50	13	ABSA-5T-X°	ABWM-5T-X°	ABWHT-5T-X°	ABWVHT-5T-X°	ABWML-5T-90°
0.375	10	ABSA-7T-X°	ABWM-7T-X°	ABWHT-7T-X°	ABWVHT-7T-X°	ABWML-7T-90°
0.25	6	ABSA-4T-X°	ABWM-4T-X°	ABWHT-4T-X°	ABWVHT-4T-X°	ABWML-4T-90°

Miniature Screw-In Wedges for 10 MHz Transducers

Nominal Element Size		Wedge Part Numbers
inches	mm	Short Approach †	Accupath*	Surface Wave 90°
0.50	13	ABSA-5T-X°	ABWM-5ST-X°	ABWML-5ST-90°
0.375	10	ABSA-7T-X°	ABWM-7ST-X°	ABWML-7ST-90°
0.25	6	ABSA-4T-X°	ABWM-4ST-X°	ABWML-4ST-90°

^† Short Approach Wedges are available in standard refracted shear wave angles of 45°, 60°, and 70° in steel at 5.0 MHz.

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

Accupath and Surface Wave Wedge Dimensions* (Miniature Screw-in)
Fits Nominal Element Size (in inches)
		0.5					0.375					0.25
		(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	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	1.48	-		0.83	1.13	0.45	-

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					0.375					0.25
		(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