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PAUT Probe Ordering Guide


Our array transducers have frequencies ranging from 1 MHz to 18 MHz and can have between 8 to 256 elements. Here is a list of some of the type of phased array transducers we manufacture:


• 1D linear array transducers
• Concave array transducers
• 2D matrix transducers
• Dual 1.5D matrix transducers.


NextNDT offers a complete line of wedges that complement its phased array ultrasonic transducers. Designed to tackle any applications, our wedges come equipped with irrigation channels and easy fixation points for simple interfacing with scanning mechanisms.

How to order PAUT probes?

Use the naming rules below to order probes by choosing a type under each rule:


  • Frequency
  • Array Type
  • Number of Elements
  • Elementary Pitch
  • Elevation
  • Casing Type
  • Cable Type
  • Cable Length
  • Connector Type
Probe naming rules
Transducer Types
Parameters Types
  • Primary Axis: Axis along which the individual elements are aligned for 1D linear probe
  • Secondary Axis / Elevation(Y): Axis perpendicular to the primary axis of a probe
  • Number of Elements (Primary Axis/n): Total number of elements aligned along the primary axis
  • Number of Elements (Secondary Axis/m): Total number of elements aligned along the secondary axis (Matrix Array only)
  • Primary Axis Pitch(P/Px): Center-to-center distance between two consecutive elements along the primary axis
  • Secondary Axis Pitch(PY): Center-to-center distance between two consecutive elements along the secondary axis (2D Matrix Array only)
  • Primary Axis Aperture(A/Ax): Dimension of the probe surface along the primary axis
    Ax = (n–1) • Px + Ex
  • Secondary Axis Aperture(AY/Wpassive): Dimension of the probe surface along the secondary axis
    Ay = (m–1) • Py + Ey

How to order wedges?

Use the naming rules below to order wedges by choosing a type under each rule:


  • Probe Casing Type
  • Probe Mounting
  • Refracted Angle in Steel
  • Wave Type
  • Options
  • Contact Surface Type
  • Curved Diameter
Wedges naming rules
Wedge Options

Contact Surface Type

PAUT Probe Types

ES | Extra Small Series
S | Small Series
M | Medium Series
L | Large Series
I | Immersion Series
NS | Narrow Side Series
LP | Low Profile Series
CC | Concave Series
2D | 2D Matrix Series
1.5D | 1.5D Matrix Series

Connector Types

Cable Types

  • Long service life cable
  • Low signal attenuation
  • Flexible
  • Quality mechanical performance

Cable Protector Types

Wedge Types

  • Available in standard refracted angles of 0°, 45°, 55°, and 60° in steel for angle-beam inspections from 30° to 70°, SW or LW
  • Stainless steel screw receptacles provide a firm anchoring of probe to wedge
  • Wedges are available with IHC options: irrigation, holes, and carbide pins (for wear resistance)
  • Wedges are designed to perform manual or automated scans (IHC)
  • Custom wedges with specific refracted angles can be made-to-order; Wedge shape and contour can also be customized

Wedge Offset Parameters

AOD                           AID

Sample Reports

Custom Probe Requirements

To order custom phased array transducers and probes to match your specific applications and geometries, we need the following information:

  • Application
  • Comparable UT single element transducers
  • Frequency
  • Number of elements, pitch, and elevation
  • Array shape (flat, curved) Curved in active dimension
  • Curved in passive dimension (elevation focused)
  • Casing type (S series, A series, others)
  • Cable jacket required
  • Cable length
  • Connector Type
  • Housing restrictions and/or size constraints