GE Ultrasonic USM Go, Руководство оператора

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Chapter 3. Making Measurements
USM Go Operator’s Manual 77
3.3 Displaying Measured Results (cont.)
Note:
Reference results (identified with “r”) behavior based on
EVAL MODE
are as follows:
•
DAC - % Amplitude or dB compared to corresponding DAC curve point
•
TCG - % Amplitude or dB compared to TCG reference level
•
dB REF - % Amplitude or dB compared to reference level
•
DGS - % Amplitude or dB compared to curve/size selected
•
JISDAC - % Amplitude or dB compared to JIS LINE (H, M, or L) set to BOLD
•
NONE - % Amplitude or dB compared to gate threshold height
•
CLS - JIS CLASS (I, II, III, or IV). Available only when JISDAC evaluation mode is active.
•
ERS - Evaluates the reflected echo in DGS Mode, and calculates the Equivalent Reflector Size
•
GT - DGS test gain, which initializes the DGS curve maximum height at 80% FSH.
•
GR - DGS reference gain, which represents the instrument gain at which the reference echo peak reaches 80% FSH.
•
VIRTUAL LED - Reading box color changes from green to red when a gate alarm is triggered.
•
OFF - No reading is displayed in the reading box.