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Entry  Thu Feb 18 15:15:12 2021, yehonathan, Update, SUS, OSEM testing for SOSs OSEM_Pin_Plate.png
    Reply  Mon Feb 22 14:06:49 2021, Yehonathan, Update, SUS, OSEM testing for SOSs 
       Reply  Wed Feb 24 10:23:03 2021, Yehonathan, Update, SUS, OSEM testing for SOSs OSEM_078_LED_Spot.JPGOSEM_280_LED_Spot.JPGOSEM_117_LED_Spot.JPG
          Reply  Wed Mar 3 11:51:07 2021, Yehonathan, Update, SUS, OSEM testing for SOSs 
             Reply  Tue Mar 9 14:30:22 2021, Yehonathan, Update, SUS, OSEM testing for SOSs 
                Reply  Tue Mar 9 15:19:03 2021, Koji, Update, SUS, OSEM testing for SOSs 
                   Reply  Tue Mar 9 18:49:28 2021, Yehonathan, Update, SUS, OSEM testing for SOSs 
    Reply  Tue Feb 23 20:55:19 2021, Koji, Update, SUS, OSEM testing for SOSs SOS_OSEM.pdf
       Reply  Wed Feb 24 10:09:16 2021, yehonathan, Update, SUS, OSEM testing for SOSs 
Message ID: 15838     Entry time: Wed Feb 24 10:23:03 2021     In reply to: 15832     Reply to this: 15856
Author: Yehonathan 
Type: Update 
Category: SUS 
Subject: OSEM testing for SOSs 

Continuing with the new rig, I measure the resistance of the cable leading to the coil to be 0.08+(0.52-0.08)+(0.48-0.08)=0.9ohm.

S/N

Coil Resistance

(ohm)

Coil Inductance

(mH)

PD Voltage

(V)

LED spot image

(Attachment #)

LED perfectly centered Ready for C&B and install Short/Long Notes
078 13.0 2.8 1.86 1 N Y L Reengraved
280 13.3 2.8 1.92 2

Y

Y L  
117 13.1 2.8 2.12 3 Y Y L Reengraved
140 inf       N N L  
146 12.8 2.8 1.83   Y Y L Reengraved
093 13.1 2.8 2.19   N Y L Reengraved
296 13.1 2.8 2.19   N Y L  
256 13.1 2.8 2.0   N Y L  
060 12.9 2.8 2.0   Y Y L Reengraved
098 13 2.8 1.95   N Y L Reengraved
269 13.2 2.8 1.92   Y Y L  
260 13.2 2.8 2.03   Y Y L  
243 13.1 2.8 1.94   N Y L  
080 12.9 2.8 2.38   Y Y L Reengraved
292 13.3 2.8 2.06   N Y L  
113 13 2.8 2.08   Y Y L Reengraved
251 13.1 2.8 2.04   Y Y L  
231 13.3 2.8 1.89   Y Y L filter not covering the entire PD area
230 13.3 2.8 1.92   Y Y L  
218 13.3 2.8 2.13   Y Y L  
091 13.2 2.8 1.98   Y N L No pigtail. Reengraved
118 13.3 2.8 2.15   Y N L No pigtail. Reengraved
302 13.2 2.8 2.06   Y Y L  
159 13 2.8 2.15   Y N S No pigtail. One cap screw too long. Reengraved.
016 13 2.8 2.54   Y N S No pigtail. Reengraved.
122

13.1

2.8 2.04   N N L No pigtail. Reengraved.
084 13 2.8 1.94   N N L No pigtail. Reengraved.
171 13.1 2.8 2.20   Y N L No pigtail. Reengraved.
052 12.9 2.8 1.75   Y Y S Reengraved.
106 13.1 2.8 1.62   Y Y S Reengraved.
096 13 2.8 2.05   Y Y S Reengraved. The OSEM fell on the floor. I rechecked it. Everything seems fine except the PD voltage has changed. It was previously 1.76
024 13 2.8 1.81   Y Y S Reengraved.
134 12.9 2.8 1.82   N Y S Reengraved.
081 12.9 2.7 1.85   Y Y S Reengraved.
076 12.9 2.8 1.91   N Y S Reengraved.
108 12.9 2.8 1.83   Y Y S Reengraved.
020 12.9 2.8 1.98   N Y S Reengraved.
031 12.9 2.8 1.74   Y Y S Reengraved.
133 13.1 2.8 1.65   Y Y S Reengraved.
007 13 2.8 1.74   Y Y S Reengraved.
088 12.8 2.8 1.77   N Y S Reengraved.
015 12.9 2.7 1.81   Y Y S  
115 13 2.8 1.89   Y Y S Reengraved.
009 12.9 2.8 1.78   Y Y S Reengraved.
099 13.1 2.8 2.00   Y Y S Reengraved.
103 12.9 2.8 1.82   N Y S Reengraved.
143 13.1 2.8 1.80   Y Y S Reengraved.
114 12.8 2.8 2.04   Y Y S  
155 13.1 2.8 1.90   N Y S Reengraved.
121 12.9 2.8 1.86   Y Y S Reengraved.
130 13 2.7 1.78   N Y S Reengraved.
022 13 2.8 1.92   N Y S Reengraved.
150 12.8 2.8 1.90   N Y S Reengraved.
144 12.7 2.7 1.86   N Y S  
040 12.9 2.8 1.70   N Y S Reengraved. way off-center
125 12.8 2.8 1.75   N Y S Reengraved.
097 12.9 2.8 1.81   N Y S Reengraved.
089 12.9 2.8 1.51   Y Y S Reengraved.
095 13 2.8 1.96   Y Y L Reengraved.
054 13.1 2.8 1.86   Y N L Have a long screw going through it. Reengraved.
127 13.1 2.9 1.82   N N L Have a long screw going through it. Reengraved.
135 12.7 2.8 1.75   N N L Have a long screw going through it. Reengraved.
046 13.1 2.8 2.08   Y N L Have a long screw going through it. Reengraved.
000 13.1 3.1 6.6 The LED light looks totally scattered. No clear spot N N S Made out of Teflon? Looks super old. Didn't engrave

Total: 63 OSEMS. Centered working OSEMS: 42. Will upload a more detailed summary to the wiki soon.

Note: The Olympus camera is eating the AA camera very quickly (need to replace every 1.5 days). I'm guessing this is because of the corrosion in the battery housing.

 

Attachment 1: OSEM_078_LED_Spot.JPG  3.469 MB  Uploaded Wed Feb 24 11:25:58 2021  | Hide | Hide all
OSEM_078_LED_Spot.JPG
Attachment 2: OSEM_280_LED_Spot.JPG  3.441 MB  Uploaded Wed Feb 24 11:26:11 2021  | Hide | Hide all
OSEM_280_LED_Spot.JPG
Attachment 3: OSEM_117_LED_Spot.JPG  3.105 MB  Uploaded Wed Feb 24 11:26:20 2021  | Hide | Hide all
OSEM_117_LED_Spot.JPG
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