Iec Acoustic Output Tables; Key To Tables - GE LOGIQ 500 Advanced Reference Manual

IEC Acoustic Output Tables

Key to Tables

Parameter
P_
I mW/cm
spta
I
p
w
pb6
(||)
( )
prr
srr
Output Beam
Dimensions
f
awf
APF
AIF
6–110

IEC Acoustic Output Tables

Acoustical parameters represent the maximum values for a
probe/mode combination; other parameters refer to the
operating conditions which yield these maximum acoustic
parameters.
Unit
(MPa) Peak-negative acoustic pressure in the plane perpendicular to the
beam-alignment axis containing the maximum pulse-pressure-squared
integral (or maximum mean square acoustic pressure for continuous
wave systems) in the whole ultrasonic field.
2
Spatial-peak temporal-average derived intensity in the whole ultrasonic
field.
mm Distance from the transducer output face to the point of maximum
pulse-pressure-squared integral (or maximum mean square acoustic
pressure for continuous wave systems).
mm –6 dB pulse beam-width at the point of maximum pulse-pressure-
squared integral (or maximum mean square acoustic pressure for con-
tinuous wave systems). These directions shall be parallel (||) and per-
pendicular ( ) to the reference direction.
KHz Pulse repetition rate for non-scanning modes.
Hz Scan repetition rate (srr) for scanning modes.
mm Dimensions parallel and perpendicular to the reference direction.
MHz Arithmetic-mean acoustic-working frequency measured by a hydro-
phone placed at the point of maximum pulse-pressure-squared integral
(or maximum mean square acoustic pressure for continuous wave sys-
tems).
% Acoustic power-up fraction.
% Acoustic initialization fraction.
Table 6–144. Key to IEC Table Value
Description
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0