RDT (Delay Line)
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Delay Line Transducers

Features

  • Single normal beam compression wave contact transducer
  • Circular lead metaniobate crystal
  • Max operating temperature 50°C / 120°F
  • High temperature delay lines available on request
  • High dampening for a wide bandwidth
  • Rexolite delay lines available, custom length available on request

Common applications:

  • Composites
  • Thin walled parts
  • Machine parts

Specification

Transducer Models

Product Code Description Frequency (MHz) Crystal Diameter (mm / inches) Nearfield Length in Steel (mm / inches)
RDT2525 2.25Mhz ¼” DelayLine 2.25 6.4mm / 1/4″ 3.9mm / 0.154″
RDT5025 2.25Mhz ½”DelayLine 2.25 12.7mm / 1/2″ 15.2mm / 0.598″
RDT1250 5Mhz 1/8″ DelayLine 5 3.2mm / 1/8″ 2.1mm / 0.083″
RDT2550 5Mhz ¼” DelayLine 5 6.4mm / 1/4″ 8.6mm / 0.339″
RDT5050 5Mhz ½” DelayLine 5 12.7mm / 1/2″ 33.8mm / 1.331″
RDT1210 10Mhz 1/8″ DelayLine 10 3.2mm / 1/8″ 4.3mm / 0.169″
RDT2510 10Mhz ¼” DelayLine 10 6.4mm / 1/4″ 17.2mm / 0.677″
RDT5010 10Mhz ½” DelayLine 10 12.7mm / 1/2″ 67.7mm / 2.665″
RDT1215 15Mhz 1/8″ DelayLine 15 3.2mm / 1/8″ 6.4mm / 0.252″
RDT2515 15Mhz ¼” DelayLine 15 6.4mm / 1/4″ 25.8mm / 1.016″
RDT1220 20Mhz 1/8” DelayLine 20 3.2mm / 1/8″ 8.6mm / 0.339″
RDT2520 20Mhz ¼” DelayLine 20 6.4mm / 1/4″ 34.4mm / 1.354″

Case Dimensions & Details (not including the Delay Line)

Transducer Version Crystal size Width/Diameter (mm / inches) Height (mm / inches) Connector Options Position Options
3.2mm / 1/8″ 12.7mm / 0.5″ 19mm / 0.748″ D Side
6.4mm / 1/4″ 12.7mm / 0.5″ 19mm / 0.748″ D Side
12.7mm / 1/2″ 19.5mm / 0.768″ 40mm / 1.575″ D Side

Delay Line

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)
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