Delay Line Transducers
A replaceable delay line transducer is a single element contact transducer designed specifically for use with a replaceable delay line.
Advantages
- Heavily damped transducer combined with the use of a delay line provides excellent near surface resolution
- Higher transducer frequency improves resolution
- Improves the ability to measure thin materials or find small flaws while using the direct contact method
- Contouring available to fit curved parts
Applications
- Precision thickness gaging
- Straight beam flaw detection
- Inspection of parts with limited contact areas
- Replaceable Delay Line Transducers
- Each transducer comes with a standard delay line and retaining ring
- High temperature and dry couple delay lines are available
- Requires couplant between transducer and delay line tip
|
Frequency
|
Element Size
|
Transducer
Part Numbers
|
|
MHz
|
inches
|
mm
|
|
|
2.25
|
0.25
|
6
|
V204-RM
|
|
5.0
|
0.50
0.25
|
13
6
|
V206-RM
V201-RM
|
|
10
|
0.25
0.125
|
6
3
|
V202-RM
V203-RM
|
|
15
|
0.25
|
6
|
V205-RM
|
|
20
|
0.125
|
3
|
V208-RM
|
Replaceable Delay Line Options
|
Nominal Element Size
|
Standard Delay Line
|
High Temperature
|
Dry Couple
Delay
Line
|
Spare
Retaining Ring
|
Spring
Loaded
Holders
|
|
350°F Max
(175°C)
|
500°F Max
(260°C)
|
900°F Max
(480°C)
|
|
inches
|
mm
|
|
|
|
|
|
|
|
|
0.50
|
13
|
DLH-2
|
DLHT-201
|
DLHT-2
|
DLHT-2G
|
DLS-2
|
DRR-2
|
2130
|
|
0.25
|
6
|
DLH-1
|
DLHT-101
|
DLHT-1
|
DLHT-1G
|
DLS-1
|
DRR-1
|
2127 & DRR-1H
|
|
0.125
|
3
|
DLH-3
|
DLHT-301
|
DLHT-3
|
DLHT-3G
|
DLS-3
|
DRR-3
|
2133 & DRR-3H
|
Sonopen® Replaceable Delay Line Transducer
- Focused replaceable delay line
- Extremely small tip diameter may improve performance on curved surfaces and small indentations
- Handle for easier positioning of transducer head
|
Frequency
|
Nominal
Element
Size
|
Transducer
Part Numbers
|
|
MHz
|
inches
|
mm
|
Straight
Handle
|
Right Angle
Handle
|
45°
Handle
|
|
15
|
0.125
|
3
|
V260-SM
|
V260-RM
|
V260-45
|
|
Sonopen Replaceable Delay Lines
|
|
Tip diameter
|
Part Number
|
|
inches
|
mm
|
|
|
0.080
|
2.0
|
DLP-3
|
|
0.060
|
1.5
|
DLP-302
|
|
0.080
|
2.0
|
DLP-301*
|
|
Spring Loaded Holder
|
|
SLH-V260-SM*
|
|
|
Permanent Delay Line Transducers with Handle Assembly
These transducers are used to reach into areas of limited access such as adjacent turbine blades. The swivel head improves contact in tight areas.
|
Frequency
|
Nominal
Element Size
|
Delay Line
Length
|
Transducer
Part Number |
|
MHz
|
inches
|
mm
|
µsec
|
|
|
20
|
0.125
|
3
|
1.5
|
M2054
|
|
20
|
0.125
|
3
|
4.5
|
M2055
|
|
20
|
0.125
|
3
|
4.0
|
V2034
|
|
|
Downloads
|
