Term
|
Definition
| DUTY FACTOR= PULSE DURATION/PRP |
|
|
Term
|
Definition
|
|
Term
| FORMULA FOR AXIAL RESOLUTION |
|
Definition
AXIAL RESOLUTION=1/2 SPL
OR
AXIAL RESOLUTION= # OF CYCLES X WAVELENGTH
2 |
|
|
Term
|
Definition
|
|
Term
| FORMULA FOR DOPPLER EQUATION |
|
Definition
DOPPLER EQUATION= 2 X FREQUENCY X VELOCITY
PROPAGATION SPEED |
|
|
Term
| FORMULA FOR NEAR ZONE LENGTH |
|
Definition
NZL= TRANSDUCER DIAMETER2
4 X WAVELENGTH
|
|
|
Term
| FORMULA FOR PROPAGATION SPEED |
|
Definition
| PROPAGATION SPEED= FREQUENCY X WAVELENGTH |
|
|
Term
| FORMULA FOR PULSE DURATION |
|
Definition
| PULSE DURATION= # OF CYCLES X PERIOD |
|
|
Term
|
Definition
| SPL= #OF CYCLES X WAVELENGTH |
|
|
Term
| FORMULA FOR TOTAL ATTENUATION |
|
Definition
| TOTAL ATTENUATION= ATTENUATION COEFFICIENT X DISTANCE |
|
|
Term
| FORMULA FOR ATTENUATION COEFFICIENT |
|
Definition
ATTENUATION COEFFICIENT= FREQUENCY
2 |
|
|
Term
|
Definition
| PRP= IMAGING DEPTH X 13 MICROSECEONDS |
|
|
Term
|
Definition
PRF= 77,000 CM/S
IMAGING DEPTH |
|
|
Term
| FORMULA FOR INCIDENT INTENSITY |
|
Definition
INCIDENT INTENSITY= REFLECTED INTENSITY
TRANSMITTED INTENSITY |
|
|
Term
|
Definition
WAVELENGTH= PROPAGATION SPEED
FREQUENCY |
|
|
Term
| FORMULA FOR DISTANCE TO A REFLECTOR |
|
Definition
| DISTANCE TO A REFLECTOR= 1/2 PROPAGATION SPEED X PULSE ROUND-TRIP TIME |
|
|
