through-transmission method

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July 14, 2026

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The through-transmission method is a technique used in ultrasonic inspection for nondestructive testing. In this method, sound waves with frequencies above human hearing are sent through a material. The transmitter and receiver are placed on opposite sides of the material. If there are any flaws or interruptions in the material, they will affect the passage of the sound waves. By analyzing these interruptions, the location and size of flaws can be determined. This method often involves immersing the transmitter, sample, and receiver in water.1

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materials testing
Sound
In the through-transmission method, the transmitter and receiver are located on opposite sides of the material; interruptions in the passage of sound waves are used to locate and measure flaws. Usually a water medium is employed in which transmitter, sample, and receiver are immersed.
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In the through-transmission method, the transmitter and receiver are located on opposite sides of the material; interruptions in the passage of sound waves are used to locate and measure flaws. Usually a water medium is employed in which transmitter, sample, and receiver are immersed.
Read More