Protected Face Transducers
A protected face transducer is a single element longitudinal wave contact transducer that can be used with either a delay line, protective membrane, or protective wear cap.
Advantages
- Provides versatility by offering removable delay line, protective wear cap, and protective membrane
- When the transducer is used alone (without any of the options), the epoxy wear face provides good acoustic impedance matching into plastics, many composites, and other low impedance materials
- Cases are threaded for easy attachment to the delay line, protective membrane, and wear cap options
Applications
- Straight beam flaw detection
- Thickness gaging
- High temperature inspections
- Inspection of plates, billets, bars, and forgings
Standard Protected Face
- Comfort Fit sleeves are designed to be easily held and provide steady grip while wearing gloves
- Standard connector style Right Angle BNC (RB), may be available in Straight BNC (SB)
- Delay line, protective membrane, and wear cap options sold separately from the transducer
Freq. |
Nominal
Element Size |
Transducer Part Numbers |
MHz |
inches |
mm |
ACCUSCAN-S |
CENTRASCAN |
VIDEOSCAN |
0.5 |
1.50 |
38 |
A689S-RB |
- |
V689-RB |
1.125 |
29 |
A691S-RB |
- |
V691-RB |
1.00 |
25 |
A601S-RB |
- |
V601-RB |
1.0 |
1.50 |
38 |
A692S-RB |
- |
V692-RB |
1.125 |
29 |
A694S-RB |
- |
V694-RB |
1.00 |
25 |
A602S-RB |
C602-RB |
V602-RB |
0.75 |
19 |
A614S-RB |
- |
V614-RB |
0.50 |
13 |
A603S-RB |
C603-RB |
V603-RB |
2.25 |
1.50 |
38 |
A695S-RB |
- |
V695-RB |
1.125 |
29 |
A697S-RB |
- |
V697-RB |
1.00 |
25 |
A604S-RB |
C604-RB |
V604-RB |
0.75 |
19 |
A605S-RB |
- |
V605-RB |
0.50 |
13 |
A606S-RB |
C606-RB |
V606-RB |
3.5 |
1.00 |
25 |
A680S-RB |
- |
V680-RB |
0.75 |
19 |
A681S-RB |
- |
V681-RB |
0.50 |
13 |
A682S-RB |
- |
V682-RB |
5.0 |
1.00 |
25 |
A607S-RB |
- |
V607-RB |
0.75 |
19 |
A608S-RB |
- |
V608-RB |
0.50 |
13 |
A609S-RB |
C609-RB |
V609-RB |
10 |
0.50 |
13 |
A611S-RB |
- |
V611-RB |
Transducer Dimensions (in inches) |
Nominal Element Size |
(A) |
(B) |
(C) |
1.50 |
1.53 |
1.75 |
2.25 |
1.125 |
1.53 |
1.38 |
1.81 |
1.00 |
1.53 |
1.25 |
1.63 |
0.75 |
1.53 |
0.99 |
1.41 |
0.50 |
1.53 |
0.63 |
1.19 |
|
High Temperature Delay Line Options
- Allows for intermittent contact with hot surfaces*
- Improves near surface resolution
- Contouring of delay lines provides better coupling on curved surfaces
- Warm temperature delay lines (WTD) can be used for room temperature applications
Nominal
Element Size |
Delay Line
Retaining
Ring |
350°F max.
(175°C) |
500°F max.
(260°C) |
900°F max.
(480°C) |
inches |
mm |
|
|
|
|
1.00 |
25 |
DRN-3 |
WTD-3-x |
HTD-3-x |
VHTD-3-x |
0.75 |
19 |
DRN-4 |
WTD-4-x |
HTD-4-x |
VHTD-4-x |
0.50 |
13 |
DRN-5 |
WTD-5-x |
HTD-5-x |
VHTD-5-x |
*Recommended usage cycle is ten seconds maximum contact followed by one minute of air cooling. However, the transducer itself should not be heated above 122°F (50°C).
X = standard delay line lengths, available in 1/2" (13 mm), 1" (25 mm), 1-1/2" (38 mm). Specify at time of ordering.
Note: For the delay lines above, a room temperature material longitudinal wave velocity of 0.100 in/µsec ±0.005 in/µsec may be used as an approximation for basic calculations. This value should not be used for engineering design calculations.
Contact us for details.
Protective Membrane Option
- Improves coupling on rough or uneven surfaces
- Dry couple to smooth, clean surfaces
Nominal
Element Size |
Membranes
Only* |
Membrane
Retaining
Ring |
Kits† |
inches |
mm |
pkg of 12 |
pkg of 60 |
|
|
1.50 |
38 |
PM-1-12 |
PM-1-60 |
MRN-1 |
PMK-1 |
1.125 |
29 |
PM-2-12 |
PM-2-60 |
MRN-2 |
PMK-2 |
1.00 |
25 |
PM-3-12 |
PM-3-60 |
MRN-3 |
PMK-3 |
0.75 |
19 |
PM-4-12 |
PM-4-60 |
MRN-4 |
PMK-4 |
0.50 |
13 |
PM-5-12 |
PM-5-60 |
MRN-5 |
PMK-5 |
*Available in 36" x 36" x 1/32" sheets. Order part number NPD-665-3101.
† Kit includes 12 Membranes, 1 ring, C-2 couplant
Protective Wear Cap Option
The nylon wear cap provides an economical solution in applications requiring scanning or scrubbing of rough surfaces
Nominal
Element Size |
Protective |
inches |
mm |
|
1.50 |
38 |
NWC-1 |
1.125 |
29 |
NWC-2 |
1.00 |
25 |
NWC-3 |
0.75 |
19 |
NWC-4 |
0.50 |
13 |
NWC-5 |
|