[Takidera, Yokozawa, Michimura]
We have installed a data logger Yokogawa DL950 (JGW-S2516987) in TMSY rack.
It is now sitting just above the DC power supply (occupying 6-12 of the TMSY rack JGW-D1809427); see photo attached.
We have assigned an IP address, and now can be controlled from a web browser.
It is now monitoring the direct outputs (so, no whitening nor anti-aliasing) from Y_IR_PDA1 (Ch 9), Y_IRSPOL_PDA1 (Ch 11), and Y_IRPPOL_PDA1 (Ch 13) (see, also klog #33283) to get a high frequency polarization fluctuation data.
The BNC cables from the PDs to the BNC-Dsub Converter were split into two, and sent to DL950.
Since the BNC cables I brought to send the signals from EY0 rack to TMSY rack was a bit too short (2 m), we will redo the BNC cabling again tomorrow.
Work log
Entered the mine: 13:41
Entered Yend: 5:20
Exited Yend: 16:33
Exited the mine: 17:09
(All in November 22, 2025 in JST)
We have finished doing the BNC cabling to the data logger DL950.
We used 5 m BNC cable to send the signals from EY0 rack to TMSY rack (Fig. 1), and monitored the output from Y_IR_PDA1 (Ch 9), Y_IRSPOL_PDA1 (Ch 11), and Y_IRPPOL_PDA1 (Ch 13) (Fig. 2).
Work log
Entered the mine: 9:24
Entered Yend: 9:41
Exited Yend: 10:24
Exited the mine: 11:02
(All in November 23, 2025 in JST)
