Epson USN 52L, USN 52R TOF Measurement mode for time of flight

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-63
H Note:
The measurement results are displayed in the measure-
ment line. The corresponding symbol will appear in the
status line:
TOF Measurement mode for time of flight
In this function you can select the mode of measure-
ment for the time of flight/distance within the gate. You
have two possibilities:
• Flank: You measure the time of flight up to the first
echo (at the first intersection point with the gate).
•Peak: You measure the time of flight up to the high-
est echo at the maximum amplitude.
If there is a distinct maximum amplitude, you should
always select the setting Peak, because in that case
the readings are independent of the set gain. You will
avoid node errors (e.g. half-wave jumps at the echo
flank). The measurement mode Peak is only possible if
the amplitude to be evaluated is < 110% screen height.
You must have selected the same TOF setting for the
calibration.
H Note:
With the setting Flank, the time of flight is derived from
the first echo and the amplitude is derived from the
highest echo within the gate.
Operation:
–Use I to highlight the left function group in the
right function table.
–Select the required setting Flank or Peak in TOF
using M.
H Note:
The measurement results are displayed in the measure-
ment line. The corresponding symbol will appear in the
status line:
Setting the measurement methods Operation
Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-63
H Note:
The measurement results are displayed in the measure-
ment line. The corresponding symbol will appear in the
status line:
TOF Measurement mode for time of flight
In this function you can select the mode of measure-
ment for the time of flight/distance within the gate. You
have two possibilities:
• Flank: You measure the time of flight up to the first
echo (at the first intersection point with the gate).
•Peak: You measure the time of flight up to the high-
est echo at the maximum amplitude.
If there is a distinct maximum amplitude, you should
always select the setting Peak, because in that case
the readings are independent of the set gain. You will
avoid node errors (e.g. half-wave jumps at the echo
flank). The measurement mode Peak is only possible if
the amplitude to be evaluated is < 110% screen height.
You must have selected the same TOF setting for the
calibration.
H Note:
With the setting Flank, the time of flight is derived from
the first echo and the amplitude is derived from the
highest echo within the gate.
Operation:
–Use I to highlight the left function group in the
right function table.
–Select the required setting Flank or Peak in TOF
using M.
H Note:
The measurement results are displayed in the measure-
ment line. The corresponding symbol will appear in the
status line:
Setting the measurement methods Operation