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2012/06/26

G103a Side 1 Side 2
g103a_side1c_packaged.jpg g103a_side2a_packaged.jpg
G103a Channel/DIB layout
2105 Pressure in puck 6 psig. Extract detector from puck in cleanroom.
2115 Transfer crystal to clean bench.
2125 Conduct detector level continuity check on clean bench:
Table 1: Detector level continuity check.
DIB 1 DIB 2 DIB 3
Signal Measured Measured Measured
QET A 124 Ω 118 Ω 105 Ω
QET B 132 Ω 32 Ω 130 Ω
QET C 99 Ω 82 Ω 51 Ω
QET D 62 Ω 31 Ω Ω 128 Ω
LED1 R forward N/A 754 kΩ 767 kΩ
LED1 V forward N/A 1.044 V 1.045 V
LED1 G backward N/A <1.7 nS <0.2 nS
LED2 R forward 756 kΩ 776 kΩ N/A
LED2 V forward 1.044 V 1.046 V N/A
LED2 G backward <0.3 nS <0.4 nS N/A
Qo(+ve)-Qi(-ve) 60 Ω 58 Ω N/A
Qi(+ve)-Qo(-ve) 54 Ω 51 Ω N/A
2145 Place crystal in purge cabinet.

Data from Accelerometer

Data available in csv format from here.

Table 2: Vertical red lines in Figures 1, 2 & 3 correspond to the following events from FedEx's website in chronological order (tracking no. 793712429915):
Date Time [PDT] Activity Location
June 22 2012 13:40 Picked up Menlo Park, CA
June 22 2012 17:55 Left origin FedEx location Menlo Park, CA
June 22 2012 22:51 Arrived at FedEx location Memphis, TN
June 23 2012 02:19 Departed FedEx location Memphis, TN
June 23 2012 04:04 At destination sort facility Minneapolis, MN
June 23 2012 04:51 At local FedEx facility St. Paul, MN
June 25 2012 05:00 On FedEx vehicle for delivery St. Paul, MN
June 25 2012 09:23 Delivered Minneapolis, MN
Figure 1: Pressure exerted on puck during its journey across the country as measured by the accelerometer.
Figure 2: Temperature of puck over the course of its voyage across the country as measured by the accelerometer.
Figure 3: G-force sustained by puck during its traumatic odyssey as measured by the accelerometer. The lines between the points have no meaning as the accelerometer recorded the acceleration when its trigger threshold of 2g was satisfied. They are present here to help your eyes.