| A | B |
|---|
| Period | 1/frequency (f) (MHz) |
| Pulse Duration (PD) | # of cycles x period |
| Wavelength | prop speed (1540 m/sec or 1.54 mm/us) /frequency (MHz) |
| Spatial Pulse Length (SPL) | wavelength (/~) x # of cycles in a pulse |
| Axial Resoultion | Spatial Pulse Length /2 |
| Power | P= Amplitude (squared) |
| Intensity | Power (W)/area (cm2) |
| Pulse Repitition Frequency (PRF) KHz | 1/PRP |
| Pulse Repitition Period (PRP) | 1/PRF |
| Duty Factor | pulse duration/PRP x's 100 |
| Frequency | 1/p |
| Frame Rate (Hz) | #frames/sec |
| Impedence | density x propagation speed |
