NOTE
Per Section 6.4 of the Output Display Standard, measurement precision on the following
quantities is determined by making repeated measurements and stating the standard deviation
as a percentage.
Acoustic Measurement Precision
Quantity
Precision (Percentage Standard
Deviation)
Pr is the underated peak rarefactional pressure
measured in megapascals (MPa).
Pr: 5.4%
Wo is the ultrasonic power in milliwatts (mW).
6.2%
f
c
is the center frequency in megahertz (MHz)
(NEMA UD-2 definition).
<1%
PII.3 is the derated spatial-peak pulse intensity
integral in joules per square centimeter (J/cm
2
).
P11.3: 3.2%
Acoustic Measurement Uncertainty
Quantity
Measurement Uncertainty
(Percentage, 95% Confidence Value)
Pr is the underated peak rarefactional pressure
measured in megapascals (MPa).
Pr: ±11.3%
Wo is the ultrasonic power in milliwatts (mW).
±10%
f
c
is the center frequency in megahertz (MHz)
(NEMA UD-2 definition).
±4.7%
PII.3 is the derated spatial-peak pulse intensity
integral in joules per square centimeter (J/cm
2
).
PII.3: +18% to -23%
Safety
Biological Safety
64
EPIQ 7 User Manual 4535 617 25341
Содержание epiq 7
Страница 4: ...4 EPIQ 7 User Manual 4535 617 25341 ...
Страница 26: ...Read This First Recycling Reuse and Disposal 26 EPIQ 7 User Manual 4535 617 25341 ...
Страница 94: ...DVD RW Drive System Overview System Components 94 EPIQ 7 User Manual 4535 617 25341 ...
Страница 100: ...Brake Steering Lock Pedal System Overview System Components 100 EPIQ 7 User Manual 4535 617 25341 ...
Страница 154: ...Customizing the System Custom Procedures 154 EPIQ 7 User Manual 4535 617 25341 ...
Страница 172: ...Performing an Exam Ending an Exam 172 EPIQ 7 User Manual 4535 617 25341 ...
Страница 198: ...Intraoperative Transducers Leakage Current Testing for Intraoperative Transducers 198 EPIQ 7 User Manual 4535 617 25341 ...
Страница 244: ...Endocavity Transducers Biopsy with Endocavity Transducers 244 EPIQ 7 User Manual 4535 617 25341 ...
Страница 298: ...System Maintenance For Assistance 298 EPIQ 7 User Manual 4535 617 25341 ...