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Phased array probes (PAUT)

Linear, dual-linear, flexible, wheel and wedge-integrated array probes.

Exclusive distributor of the DOPPLER brand
PL · LT · LV · EE

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All phased array probe models (156)

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Part number	Series	Application	MHz	Elements	Pitch [mm]	Elevation [mm]	Aperture [mm]	Housing
1L16-1.0*10-B10	linear	universal	1	16	1	10	16	B10
1L16-1.8*22-B30	linear	universal	1	16	1.8	22	28.8	B30
1L64-1.0*10-B59	linear	universal	1	64	1	10	64	B59
1L64-2.0*20-D72	linear	universal	1	64	2	20	128	D72
1.5L16-2.8*26-Q31	linear	universal	1.5	16	2.8	26	44.8	Q31
1.5L32-1.0*20-D6	linear	deep penetration	1.5	32	1	20	32	D6
2L16-1.8*20-B30	linear	deep penetration	2	16	1.8	20	28.8	B30
2L16-3.5*20-B25	linear	deep penetration	2	16	3.5	20	56	B25
2L32-1.4*18-B28	linear	deep penetration	2	32	1.4	18	44.8	B28
2.2L16-0.6*10-D1	linear	universal	2.2	16	0.6	10	9.6	D1
2.2L16-1.6*16-B58	linear	deep penetration	2.2	16	1.6	16	25.6	B58
2.2L48-0.8*10-B57	linear	universal	2.2	48	0.8	10	38.4	B57
2.2L128-0.8*10-D7	linear	universal	2.2	128	0.8	10	102.4	D7
2.25L16-2.0*20-Q31	linear	universal	2.25	16	2	20	32	Q31
2.25L32-0.75*24-DP4	linear	universal	2.25	32	0.75	24	24	DP4
2.25L32-1.0*20-D6	linear	universal	2.25	32	1	20	32	D6
2.25L64-0.6*10-B57	linear	universal	2.25	64	0.6	10	38.4	B57
2.25L64-0.6*10-D3	linear	universal	2.25	64	0.6	10	38.4	D3
2.25L64-0.75*10-B44	linear	universal	2.25	64	0.75	10	48	B44
2.25L64-0.75*10-B6	linear	universal	2.25	64	0.75	10	48	B6
2.25L64-2.0*20-D72	linear	deep penetration	2.25	64	2	20	128	D72
2.5L16-1.0*10-D64	linear	universal	2.5	16	1	10	16	D64
2.5L16-1.0*12-B10	linear	universal	2.5	16	1	12	16	B10
2.5L32-0.5*10-B10	linear	universal	2.5	32	0.5	10	16	B10
2.5L64-0.6*10-B7	linear	universal	2.5	64	0.6	10	38.4	B7
2.5L64-1.0*10-B93	linear	universal	2.5	64	1	10	64	B93
2.5L64-1.0*7-D66	linear	universal	2.5	64	1	7	64	D66
3.5L16-0.6*10-D1	linear	universal	3.5	16	0.6	10	9.6	D1
3.5L16-1.6*16-B5	linear	deep penetration	3.5	16	1.6	16	25.6	B5
3.5L16-1.6*16-B58	linear	deep penetration	3.5	16	1.6	16	25.6	B58
3.5L32-0.6*15-D63	linear	deep penetration	3.5	32	0.6	15	19.2	D63
3.5L64-0.6*10-D3	linear	universal	3.5	64	0.6	10	38.4	D3
3.5L64-1.0*7-D66	linear	universal	3.5	64	1	7	64	D66
3.5L128-0.5*10-B9	linear	universal	3.5	128	0.5	10	64	B9
3.5L128-0.5*10-D7	linear	universal	3.5	128	0.5	10	64	D7
3.5L128-0.8*10-D7	linear	universal	3.5	128	0.8	10	102.4	D7
4L16-0.5*9-B12	linear	universal	4	16	0.5	9	8	B12
4L16-1.0*10-B10	linear	universal	4	16	1	10	16	B10
4L16-1.2*12-D76	linear	universal	4	16	1.2	12	19.2	D76
4L32-0.5*10-B10	linear	universal	4	32	0.5	10	16	B10
4L32-0.5*10-D2	linear	universal	4	32	0.5	10	16	D2
5L10-0.5*5-B1	linear	small footprint	5	10	0.5	5	5	B1
5L10-0.5*5-B54	linear	small footprint	5	10	0.5	5	5	B54
5L10-0.5*6-B54	linear	small footprint	5	10	0.5	6	5	B54
5L16-0.5*10-B12	linear	universal	5	16	0.5	10	8	B12
5L16-0.6*10-B12	linear	universal	5	16	0.6	10	9.6	B12
5L16-0.6*10-B49	linear	universal	5	16	0.6	10	9.6	B49
5L16-0.6*10-B56	linear	universal	5	16	0.6	10	9.6	B56
5L16-0.6*10-D1	linear	universal	5	16	0.6	10	9.6	D1
5L16-1.0*10-B10	linear	universal	5	16	1	10	16	B10
5L16-1.2*12-D76	linear	universal	5	16	1.2	12	19.2	D76
5L32-0.5*10-B10	linear	universal	5	32	0.5	10	16	B10
5L32-0.5*10-D2	linear	universal	5	32	0.5	10	16	D2
5L32-0.6*10-B72	linear	universal	5	32	0.6	10	19.2	B72
5L32-0.6*15-B10	linear	deep penetration	5	32	0.6	15	19.2	B10
5L32-0.6*15-D63	linear	universal, deep penetration	5	32	0.6	15	19.2	D63
5L32-0.8*12-B40	linear	universal	5	32	0.8	12	25.6	B40
5L32-1.0*10-D57	linear	universal	5	32	1	10	32	D57
5L32-1.0*6-D3	linear	universal	5	32	1	6	32	D3
5L32-2.0*6-B26	linear	universal	5	32	2	6	64	B26
5L64-0.3*7-B22	linear	universal	5	64	0.3	7	19.2	B22
5L64-0.6*10-B57	linear	universal	5	64	0.6	10	38.4	B57
5L64-0.6*10-B7	linear	universal	5	64	0.6	10	38.4	B7
5L64-0.6*10-D3	linear	universal	5	64	0.6	10	38.4	D3
5L64-0.8*10-B44	linear	universal	5	64	0.8	10	51.2	B44
5L64-0.8*10-B6	linear	universal	5	64	0.8	10	51.2	B6
5L64-1.0*10-B26	linear	universal	5	64	1	10	64	B26
5L64-1.0*15-D14	linear	universal	5	64	1	15	64	D14
5L64-1.0*7-B6	linear	near wall	5	64	1	7	64	B6
5L64-1.8*10-D27	linear	universal	5	64	1.8	10	115.2	D27
5L128-0.8*10-D7	linear	universal	5	128	0.8	10	102.4	D7
5L128-1.0*10-D27	linear	universal	5	128	1	10	128	D27
5L128-1.0*10-E38	linear	universal	5	128	1	10	128	E38
5L128-1.0*15-D13	linear	universal	5	128	1	15	128	D13
5L128-1.8*6-B80	linear	universal	5	128	1.8	6	230.4	B80
7.5L8-0.5*5-B1	linear	small footprint	7.5	8	0.5	5	4	B1
7.5L8-0.5*5-B54	linear	small footprint	7.5	8	0.5	5	4	B54
7.5L16-0.5*10-B12	linear	universal	7.5	16	0.5	10	8	B12
7.5L16-0.6*10-B12	linear	universal	7.5	16	0.6	10	9.6	B12
7.5L16-0.6*10-B56	linear	universal	7.5	16	0.6	10	9.6	B56
7.5L16-0.6*10-D1	linear	universal	7.5	16	0.6	10	9.6	D1
7.5L32-0.3*10-B56	linear	universal	7.5	32	0.3	10	9.6	B56
7.5L32-0.3*10-D1	linear	universal	7.5	32	0.3	10	9.6	D1
7.5L32-0.5*10-B10	linear	universal	7.5	32	0.5	10	16	B10
7.5L32-0.5*10-D2	linear	universal	7.5	32	0.5	10	16	D2
7.5L32-1.0*10-D57	linear	universal	7.5	32	1	10	32	D57
7.5L60-1.0*10-B23	linear	universal, weld inspection	7.5	60	1	10	60	B23
7.5L64-0.6*10-D3	linear	universal	7.5	64	0.6	10	38.4	D3
7.5L64-0.8*10-B44	linear	weld inspection	7.5	64	0.8	10	51.2	B44
7.5L64-0.8*10-B6	linear	universal	7.5	64	0.8	10	51.2	B6
7.5L64-1.0*7-D66	linear	universal	7.5	64	1	7	64	D66
7.5L128-0.8*10-B60	linear	universal	7.5	128	0.8	10	102.4	B60
7.5L128-0.8*10-D7	linear	universal	7.5	128	0.8	10	102.4	D7
10L16-0.3*5-B1	linear	small footprint	10	16	0.3	5	4.8	B1
10L16-0.3*5-B55	linear	small footprint	10	16	0.3	5	4.8	B55
10L16-0.6*7-B12	linear	universal	10	16	0.6	7	9.6	B12
10L16-1.0*10-B10	linear	universal	10	16	1	10	16	B10
10L24-0.2*4-B78	linear	small footprint	10	24	0.2	4	4.8	B78
10L32-0.31*10-B12	linear	universal	10	32	0.31	10	9.92	B12
10L32-0.5*7-D2	linear	universal	10	32	0.5	7	16	D2
10L64-0.3*5-B8	linear	near wall	10	64	0.3	5	19.2	B8
10L64-0.6*10-B57	linear	universal	10	64	0.6	10	38.4	B57
10L64-0.6*7-D3	linear	universal	10	64	0.6	7	38.4	D3
10C128-0.8*10-D34	linear	universal	10	128	0.8	10	102.4	D34
10C128-0.8*10-D35	linear	universal	10	128	0.8	10	102.4	D35
10L128-0.8*10-B60	linear	universal	10	128	0.8	10	102.4	B60
10L128-0.8*10-D7	linear	universal	10	128	0.8	10	102.4	D7
2.5S16-0.5*10-D94	laterally focused	laterally focused	2.5	16	0.5	10	8	D94
4S16-0.5*10-D10	laterally focused	laterally focused	4	16	0.5	10	8	D10
7.5S16-0.5*10-D10	laterally focused	laterally focused	7.5	16	0.5	10	8	D10
7.5S32-0.25*10-D10	laterally focused	laterally focused	7.5	32	0.25	10	8	D10
10S32-0.25*10-D10	laterally focused	laterally focused	10	32	0.25	10	8	D10
10S32-0.25*10-Y15	laterally focused	laterally focused	10	32	0.25	10	8	Y15
15S128-0.3*10-D23	laterally focused	laterally focused	15	128	0.3	10	38.4	D23
2.25DM74-2.713.0-G19	DLA / DMA	dual matrix TRL	2.25	28 (7×4)	2.71×3	—	18.97×12	G19
2.25DL32-1.0*12-Q68	DLA / DMA	dual linear TRL	2.25	32	1	12	32	Q68
4DL32-1.0*12-Q68	DLA / DMA	dual linear TRL	4	32	1	12	32	Q68
4DM162-1.03.0-E73	DLA / DMA	dual matrix TRL	4	32 (16×2)	1×3	—	16×6	E73
1M88-1.51.5-B19	matrix	1.5D matrix	1	64 (8×8)	1.5×1.5	—	12×12	B19
1.5M53-3.53-B21	matrix	1.5D matrix	1.5	15 (5×3)	3.5×3	—	17.5×9	B21
2M83-3.54.6-A18	matrix	TRL matrix with wedge	2	24 (8×3)	3.5×4.6	—	28×13.8	A18
5M88-1.01.0-B15	matrix	2D matrix	5	64 (8×8)	1×1	—	8×8	B15
5M88-1.51.5-B19	matrix	2D matrix	5	64 (8×8)	1.5×1.5	—	12×12	B19
5M1616-1.01.0-B16	matrix	2D matrix	5	256 (16×16)	1×1	—	16×16	B16
10M44-2.02.0-B15	matrix	2D matrix	10	16 (4×4)	2×2	—	8×8	B15
10M88-0.60.6-B13	matrix	2D matrix	10	64 (8×8)	0.6×0.6	—	4.8×4.8	B13
15M203-0.81.2-B68	matrix	2D matrix	15	60 (20×3)	0.8×1.2	—	16×3.6	B68
3.5L128-0.5*10-B9	immersion	immersion	3.5	128	0.5	10	64	B9
5L64-1.0*10-B9	immersion	immersion	5	64	1	10	64	B9
5L128-0.75*10-D7	immersion	immersion	5	128	0.75	10	96	D7
5L128-0.8*10-B60	immersion	immersion	5	128	0.8	10	102.4	B60
5L128-0.8*12-B60	immersion	immersion	5	128	0.8	12	102.4	B60
3.5C96-0.6*12-R22.9	concave	concave	3.5	96	0.6	12	57.6	R22.9
3.5C128-0.625*13-R32	concave	concave	3.5	128	0.62	13	80	R32
4C64-1.0*10-R50	concave	concave	4	64	1	10	64	R50
7.5C128-0.5*10-R29	concave	concave	7.5	128	0.5	10	64	R29
10C64-1.0*10-R29	concave	concave	10	64	1	10	64	R29
5S24-1.0*10-S1	flexible	flexible	5	24	1	10	24	S1
5S32-0.5*10-S1	flexible	flexible	5	32	0.5	10	16	S1
5S64-1.0*10-S2	flexible	flexible	5	64	1	10	64	S2
7.5S32-0.5*10-S1	flexible	flexible	7.5	32	0.5	10	16	S1
7.5S32-1.0*10-S1	flexible	flexible	7.5	32	1	10	32	S1
7.5S64-0.5*10-S1	flexible	flexible	7.5	64	0.5	10	32	S1
2L8-1.0*9-A35	integrated wedge	integrated wedge	2	8	1	9	8	A35
4L16-0.5*10-A35	integrated wedge	integrated wedge	4	16	0.5	10	8	A35
4L16-0.5*9-A35	integrated wedge	integrated wedge	4	16	0.5	9	8	A35
5L128-0.6*4-D45	integrated wedge	integrated wedge	5	128	0.6	4	76.8	D45
LS13/LS20-0.5L64-1.5*22	wheel	roller	0.5	64	1.5	22	96	LS13/LS20
1L50-2.0*16-B97	wheel	wheel	1	50	2	16	100	B97
LS13/LS20-1L64-1.5*22	wheel	roller	1	64	1.5	22	96	LS13/LS20
LS06-1L128-1.0*22	wheel	roller	1	128	1	22	128	LS06
2L64-1.5*12-B96	wheel	wheel	2	64	1.5	12	96	B96
LS06-2.25L128-1.0*22	wheel	roller	2.25	128	1	22	128	LS06
5L64-0.8*6.4-B18	wheel	wheel	5	64	0.8	6.4	51.2	B18
LS03-5L64/7.5L64-0.8*6.4	wheel	roller	5 / 7.5	64	0.8	6.4	51.2	LS03
5L128-0.8*6.4-B60	wheel	wheel	5	128	0.8	6.4	102.4	B60

Parameters as specified by the manufacturer. Cable length and connector are agreed in the quotation.

The series and the jobs they were built for

A phased array probe is a row of individually pulsed elements. By controlling the delays, the instrument steers and focuses the beam without moving the probe — one pass instead of several. Doppler builds them from 0.5 to 20 MHz, with 8 to 1024 elements and a 0.2–2.0 mm pitch, in linear, matrix, annular, concave and convex layouts.

Series	What sets it apart	Typical job
linear array	linear layout, the base series	butt welds, corrosion, most workshop inspection
laterally focused array	element curved along its length, focused in the passive axis; 2.5–15 MHz, 16–64 elements	pipes 20–115 mm in diameter, automated and semi-automated scanning
flexible array	bends to the surface, minimum bending radius 30 mm, 3 mm thick	curved surfaces and narrow gaps, pipe corrosion and thickness
wheel probe	water-coupled wheel, low-attenuation tyre, 0°–20° angle block	large flat and slightly curved surfaces, automated inspection
DLA / DMA series	pitch-catch operation, dual linear or dual matrix	minimal near-surface dead zone, attenuating materials
wedge-integrated series	wedge or delay line bonded to the array	angle beam inspection in tight spaces, no separate wedge

Pitch, aperture and element count

Pitch, the distance between element centres, limits how far the beam can be steered before grating lobes appear — the working rule keeps it below half a wavelength, which at 5 MHz in steel lands around 0.5–0.6 mm. The active aperture, element count times pitch, decides how deep the beam can be focused: a small aperture focuses shallow and diverges quickly.

So a 32-element probe with a fine pitch makes sense on thin sections, while thick walls and deep focusing call for 64 elements or more. Doppler probes hold sensitivity within ±2 dB, batch to batch as well, which matters when a worn probe is replaced mid-contract: the procedure does not have to be rewritten.

Frequently asked questions

32 or 64 elements?

For welds up to a dozen or so millimetres, 32 elements are enough. Above that, and where one pass has to do the job with focusing into depth, 64 elements win. Remember the instrument only uses as many elements as it has receive channels — a 128-element probe on a 32/128 unit works with a 32-element aperture stepped electronically.

Will the probe work with another brand of instrument?

Usually yes, provided the connector matches. Doppler supplies connectors compatible with the common types on the market — T1, P1, J1, H1, D1, D2, D3, M1 and others; details under Cables and connectors for flaw detectors. Send us your instrument model and we will confirm compatibility before you order.

Is a wedge always required?

For angle beam work, yes — the wedge sets the entry angle and protects the array; see Wedges and delay lines. The exceptions are the wedge-integrated series and straight beam work, where a high-transmission protective film replaces a 0° wedge.