Ultrasonic Testing - Probe Systems (Java Simulation)

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Symbols in applets:   
IP  = Initial Pulse
BE = Backwall Echo
R   = Reflector(flaw) Echo
(In through-transmission technique, R simply symbolizes the signal detected by the receiver)
F   = Front Echo in Immersion Probe System
B   = Backwall Echo in Immersion Probe System


                                                                
1) Straight-Beam Probe

• Basic longitudinal wave pulse echo system using the transmitter-receiver (T/R) probe

Applet> Basic Pulse Echo System

• Through-transmission technique with transmitter and receiver on opposite sides of the specimen

Applet> Through-Transmission Technique 

• Double-probe system using the transmitter- receiver (T/R) probe

Applet> Double-Probe System

2) Angle-Beam Probe

• Basic transverse wave pulse echo system using the half-skip technique with the transmitter-receiver (T/R) probe

Applet> Half-Skip Technique

• Signal characteristic of different types of defect using the half-skip technique

Applet> Defect Characterization

• Full-skip technique using the transmitter-receiver (T/R) probe where the transverse wave can be reflected off the lower surface

Applet> Full-Skip Technique

• Tandem probe in which a mechanically-linked transmitter and receiver probe system is used to detect vertical defects

Applet> Tandem Probe

3) Immersion Probe

• Basic immersion probe system using the water-immersion technique

Applet> Water-Immersion Technique