"The hertz (Hz) is the derived SI unit for frequency. One hertz represents one cycle per second, and thus in base SI units, equates to one per second (1/s). In radiology, it is usually encountered in the context of ultrasound physics."
"The hertz (Hz) is the derived SI unit for frequency. One hertz represents one cycle per second, and thus in base SI units, equates to one per second (1/s). In radiology, it is usually encountered in the context of ultrasound physics."
"As for all other eponymous units when the name is written out in full it is not capitalised, but its symbol is capitalised. Hertz is also the plural form; "hertzs" is incorrect."