i have only high 1 X on a 603 HP / 1000 rpm Motor of a refiner
collecting data with 2 channel analyzer and measuring the relative phase:
-Drive side: Horizontal 0.43 in/s , Vertical 0.15 in/s, phase H to V 173 Deg
-NDS: Horizontal 0.55 in/s , Vertical 0.23 in/s , Phase H to V 176 Deg
-Phase across coupling after adding 180 is 40 Deg. ( in phase)
-Axial vibration motor and refiner 0.043
-1X at Refiner is less than at the motor by around 0.07 in/sec in H and V and Axial.
1-does the nearly 180 deg. phase shift between H & V mean Resonance ?
2-i do not know the source of the high 1x motor or refiner ?
3- i am confused: 180 phase shift could be the same effect as 0 shift ? ( for example in charlotte wall chart "eccentric rotor" comparative H an V phase differ either by 0 or 180 !!! ( 0 for me is in phase / 180 is out of phase drive moving up, driven moving down) , how in phase and out of phase confirm an Eccentric Rotor ?
4-why we do not make correction by adding +/-90 Deg when we measure phase between H & V ?? , sorry confused.
thank you in advance for your help.