YUSHI INSTRUMENTS
15
3.4.1 Dual Probes
You can use this function to set the probe types.
Select the probe menu, press (up) or (down) to select the dual probes submenu. Then
press (left) or (right) to adjust the values.
Note: On refers to the dual probes mode; while Off refers to the single crystal probe mode.
3.4.2 Probe Zero
There is a certain sound path distance between the probe chip and the coupling surface of the work
piece to be detected, thus there will be a sonic time delay. The delay effect can be compensated by
setting the probe zero submenu.
Select the probe menu, press (up) or (down) to select the probe zero submenu. Then
press (left) or (right) to adjust the values.
Note: the adjustment range is 0-99.99μs. In the adjustment, you can press Ok to adjust the steps,
which are divided into 0.025, 0.1, and 1.
3.4.3 Probe K Value
When the angle beam probe is used, the included angle value (β) between the sound beam in the
work piece of the incidence of the sound wave and the surface normal should be set as: K value -
k=tgβ.
Select the probe menu, press (up) or (down) to select the probe K value submenu.
Then press (left) or (right) to select the probe K value and the probe angle. Press (up)
or (down) to select the value option, then press (left) or (right) to adjust the
value.
Note: when you adjust the probe K value, press Ok to adjust the steps of the K value. When you
adjust the probe angle, press Ok, then you are able to adjust the steps of the probe angle head. The steps
of the K value are 0.01, 0.1, and 1. The adjustment range is 0-9.99. The steps of the angle are 0.1, 1, and
10. The adjustment range is 0-89.9.