What is the primary use of a hydrophone in ultrasound?

A hydrophone is primarily used in ultrasound to test output intensity. This device is capable of detecting and measuring acoustic pressure in a medium, which is essential for assessing the performance of ultrasound equipment. By doing so, the hydrophone provides valuable information about the intensity of the ultrasound waves being emitted, allowing for a thorough evaluation of safety and effectiveness during diagnostic procedures.

Measuring tissue density, enhancing signal intensity, or adjusting gain settings are not the primary functions of a hydrophone. Tissue density measurements typically require different types of instruments, while gain adjustments are made through electronic controls within the ultrasound machine itself. Thus, the hydrophone's role is crucial in ensuring that the output of ultrasound systems is both safe for patients and adequate for diagnostic purposes.