Sonatest RDT Delay Line Transducers

Sonatest RDT Delay Line Transducers

RDT Delay Line Transducers for Precision Thickness Gauging and Applications Requiring Good Near Surface Resolution

Overview

The Sonatest RDT are Delay Line, contact probe. They are high damped, and provide excellent near-surface resolution for inspection of composites, thin-walled parts, and machined parts. Options include special delay line lengths, and Rexolite delay lines.

Features

  • Single normal beam compression wave contact transducer
  • High dampening for a wide bandwidth
  • Circular lead metaniobate crystal
  • Max operating temperature 50°C / 120°F
  • High Temperature Delay Line Options Available
  • Rexolite Delay Lines are offered for low signal loss at higher frequencies.
  • Microdot Side Connector

Common Applications

The RDT Transducer is ideal for near-surface, high-resolution for inspection. Its optional delay line and Rexolite options make it great for high temperature readings. 

Common Applications Include:

  • Precision Thickness Gauging
  • Delamination of Composites
  • Thin walled parts
  • Machine parts

Technical Specifications

Technical Specifications

RDT Transducer Models
Product Code Description Frequency (MHz) Crystal Diameter  Nearfield Length in Steel (mm / inches)
RDT2525 2.25MHz ¼” DelayLine 2.25 1/4" 3.9mm / 0.154"
RDT5025 2.25MHz ½”DelayLine 2.25 1/2" 15.2mm / 0.598"
RDT1250 5MHz 1/8" DelayLine 5 1/8" 2.1mm / 0.083"
RDT2550 5MHz ¼” DelayLine 5 1/4" 8.6mm / 0.339"
RDT5050 5MHz ½” DelayLine 5 1/2" 33.8mm / 1.331"
RDT1210 10MHz 1/8" DelayLine 10 1/8" 4.3mm / 0.169"
RDT2510 10MHz ¼” DelayLine 10 1/4" 17.2mm / 0.677"
RDT5010 10MHz ½” DelayLine 10 1/2" 67.7mm / 2.665"
RDT1215 15MHz 1/8" DelayLine 15 1/8" 6.4mm / 0.252"
RDT2515 15MHz ¼” DelayLine 15 1/4" 25.8mm / 1.016"
RDT1220 20MHz 1/8” DelayLine 20 1/8" 8.6mm / 0.339"
RDT2520 20MHz ¼” DelayLine 20 1/4" 34.4mm / 1.354"

 

Case Dimensions and Details
Transducer Version Crystal size Width/Diameter Height (mm / inches) Connector Options Position Options
3.2mm / 1/8" 0.5" 19mm / 0.748" D Side
6.4mm / 1/4" 0.5" 19mm / 0.748" D Side
12.7mm / 1/2" 0.768" 40mm / 1.575" D Side

 

Delay Line Specifications
Product Code Description
DT12 Used for 3.2mm / 1/8" crystal diameter transducer delay line attachment (sold in packs of 3)
DT25 Used for 6.4mm / 1/4" crystal diameter transducer delay line attachment (sold in packs of 3)
DT50 Used for 12.7mm / 1/2" crystal diameter transducer delay line attachment (sold in packs of 3)

Optional Accessories

The RDT Features 3 replacement delay tips in 0.12" (DT12), 0.25"(DT25), and 0.50"(DT50) sizes (sold in packs of 3)

  • The DT12 is used for 1/8" Crystal Diameter Transducers
  • The DT25 is used for 1/4" Crystal Diameter Transducers
  • The DT50 is used for 1/2" Crystal Diameter Transducers

Product Literature

Description Part # Saved Price Select Option Add to

2.25MHz and 5MHz RDT Transducers
Sonatest RDT2525, Delay Line Transducer, 2.25MHz x 1/4", High Damped, Microdot Connector UT-ST-RDT2525
$441.00
Sonatest RDT5025, Delay Line Transducer, 5MHz x 1/4", High Damped, Microdot Connector UT-ST-RDT5025
$441.00
Sonatest RDT1250, Delay Line Transducer, 5MHz x 1/8", High Damped, Microdot Connector UT-ST-RDT1250
$441.00
Sonatest RDT2550, Delay Line Transducer, 5MHz x 1/4", High Damped, Microdot Connector UT-ST-RDT2550
$441.00
Sonatest RDT5050, Delay Line Transducer, 5MHz x 1/2", High Damped, Microdot Connector UT-ST-RDT5050
$441.00

10MHz RDT Transducers
Sonatest RDT1210, Delay Line Transducer, 10MHz x 1/8", High Damped, Microdot Connector UT-ST-RDT1210
$502.00
Sonatest RDT2510, Delay Line Transducer, 10MHz x 1/4", High Damped, Microdot Connector UT-ST-RDT2510
$502.00
Sonatest RDT5010, Delay Line Transducer, 10MHz x 1/2", High Damped, Microdot Connector UT-ST-RDT5010
$502.00
Sonatest RDT1215, Delay Line Transducer, 10MHz x 1/8", High Damped, Microdot Connector UT-ST-RDT1215
$502.00

15MHz and 20MHz RDT Transducers
Sonatest RDT2515, Delay Line Transducer, 15MHz x 1/4", High Damped, Microdot Connector UT-ST-RDT2515
$502.00
Sonatest RDT1220, Delay Line Transducer, 20MHz x 1/8", High Damped, Microdot Connector UT-ST-RDT1220
$558.00
Sonatest RDT2520, Delay Line Transducer, 20MHz x 1/4", High Damped, Microdot Connector UT-ST-RDT2520
$558.00

Accessories
Sonatest RDT Delay Line Accessory (choose length)
Model #
UT-ST-DTM
$85.00