1. Transmitter;
2. Receiver;
3. Wedges;
4. Internal crack.

1. lateral wave;
2. back wall echo;
3. diffracted signal from the top tip;
4. diffracted signal from the bottom tip.

 

TOFD transducers specification:

Catalog number	Frequency, MHz	Element dia.		Object thickness		A,		B,		C,
		mm	in	mm	in	mm	in	mm	in	mm	in
TWS10-3-TOFD 3/8"	10	3	.125	10-15	.390-.600	10	.375	6.5	.256	28	1.1
TWS10-6-TOFD 3/8"	10	6	.250	15-35	.600-1.4	10	.375	6.5	.256	28	1.1
* TWS5-6-TOFD 3/8"	5	6	.250	15-50	1.4-2.0	10	.375	6.5	.256	28	1.1
TWS5-12-TOFD M16	5	12	.500	50-100	2.0-4.0	16	.625	8	.315	33	1.3
TWS2.5-12-TOFD M16	2.5	12	.500	200-300	8.0-6.0	16	.625	8	.315	33	1.3
TWS2.25-12-TOFD M16	2.25	12	.500	200-300	8.0-6.0	16	.625	8	.315	33	1.3
TWS2.5-8-TOFD M16	2.5	8	.325	100-200	4.0-8.0	16	.625	8	.315	33	1.3
TWS2.25-8-TOFD M16	2.25	8	.325	100-200	4.0-8.0	16	.625	8	.315	33	1.3

TOFD TRANSDUCERS AND WEDGES  produced by OKOndt GROUP™

 

TOFD wedges specification:

Catalog number	Refracted angleo	A,		B,		C,
		mm	in	mm	in	mm	in
WS45 L-3/8"-TOFD	45	15	.570	32	1.26	25	.984
WS50 L-3/8"-TOFD	50	15	.570	32	1.26	25	.984
WS60 L-3/8"-TOFD	60	15	.570	32	1.26	25	.984
* WS70 L-3/8"-TOFD	70	15	.570	32	1.26	25	.984
WS45 L-M16-TOFD	45	15	.570	32	1.26	25	.984
WS50 L-M16-TOFD	50	15	.570	32	1.26	25	.984
WS60 L-M16-TOFD	60	15	.570	32	1.26	25	.984
WS70 L-M16-TOFD	70	15	.570	32	1.26	25	.984