The ability to detect and display an echo from a small reflector is called?

The ability to detect and display an echo from a small reflector is called?

• A. Resolution
• B. Sensitivity
• C. Dynamic Range
• D. Gain

Answer: (B)

Sensitivity describes the ability to detect and display a weak echo from a small reflector. In ultrasonic testing, tiny flaws produce faint signals, and higher sensitivity makes those faint echoes rise above the noise so they appear on the display. Resolution is about distinguishing two reflectors that are close together, dynamic range is the span of amplitudes the display can handle without distortion, and gain is the amplifier setting for all received signals. The term that directly matches detecting and showing a small echo is sensitivity.

Sensitivity describes the ability to detect and display a weak echo from a small reflector. In ultrasonic testing, tiny flaws produce faint signals, and higher sensitivity makes those faint echoes rise above the noise so they appear on the display. Resolution is about distinguishing two reflectors that are close together, dynamic range is the span of amplitudes the display can handle without distortion, and gain is the amplifier setting for all received signals. The term that directly matches detecting and showing a small echo is sensitivity.