
What is Probe ?
A probe is having 5 components listed below
Protecting Wear plate
Piezo electric crystal
Damping block
Electrical matching circuit
Socket
Housing
Housing
The protection layer for the whole body is housing. The material which is used here may be aluminum, plastic, steel or fiber glass material.
Socket
The socket is designed to mount for lemo cable. It can send some electric pulse to the piezo electric crystal and also and receive some electric pulse by the piezo electric crystal. when it connected with the UFD (ultrasonic flaw detector).
Electric matching circuit
The purpose of electrical matching circuit to give correct level of electric pulse to the piezo electric. When positive and negative supply connected to the piezo electric crystal. so that it can vibrate to produce ultrasonic frequency.
Damping block
The Damping block absorbs the vibration from piezo electric element which can affect the electrical matching circuit. So that the circuit can be protected from the vibration. Generally, it is made up of rubber material. Also, it can cover all the area around the electric circuit.
Piezo electric crystal
The main part of this probe is piezo electric crystal. Because it can able to convert the electrical energy into mechanical Energy. Also vice versa where the mechanical energy is turn back into electrical energy. When is get some amount of electrical energy means it tend to vibrate in high frequency. It can be more than 1000000Hz for our reference we can understand like 10L Hz of Vibration cycle per sec.
Protecting Wear plate
The protecting wear plate is like a material able to resist wear mean it is used as a shoe for the probe. Generally, it can be a thin layer of rubber, polymer resin, or glass fiber material. Which can able to protect the probe crystal layer.
Author : Mr.Saravanan N – [email protected]