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

Setting the measurement methods Operation

HNote:

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.

HNote:

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.

HNote:

The measurement results are displayed in the measure- ment line. The corresponding symbol will appear in the status line:

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-63