MIF (General)takaaki.yokozawa - 10:52 Tuesday 09 July 2024 (30315)
Print this reportPNCY spectrum measurementI measured the spectrum of the PNCY control.
1. Lock the GRY. 2. Measured the OLTF and compared from previous one(Yesterday) (klog30303) - The result is consisten with yesterday 3. Measured the spectrum of the error(K1:ALS-Y_PNC_SERVO_IN1_DQ) and feedback signal(K1:ALS-Y_PNC_SERVO_OUT_DQ) - Most of the RMS for the error signal was limited at high frequency(> 10 Hz) - There are 58.6 Hz peak, that also detected in several microphone. If the RMS became larger for the lock acquisition, we need to care for this peak