In order to measure the UV beam effctively, we bought a low cost, high QE, back-thinned CCD camera from
Fingre Lakes Instrumentation.
Camera Serial Number: 2357 04 Sensor Type: Class 1 / 512 x 512 / 24um pixels E2V CCD 77-01-1-390 Lab Ambient Temperature: 23 C
Setup measurement Temperature sensor ok: checked Shutter opens fully: checked Shutter closes fully: checked Window clean on both surfaces: checked CCD free of dust: checked Purging 0.2 torr rise time > 90 seconds: checked Fresh desiccant: checked Argon filled: checked
Mechanical/Cosmetics No scratches or marks on Case: checked Shutter test properly: checked Serial number label is present: checked | Image Quality CCD test temperature: -15 C Camera achieves T greater than: 37 C Mean bias level of bias frame: 2367 Standard deviation @ test temp, small area: 3.3 Mean saturation level: 65535 Noise distribution is random: checked Bias frame histogram is Gaussian: checked Standard test target appearance ok: checked Bias over scan frame saved as 2357 04 bias OS -15C. fts Light frame saved as: 2357 04 lgt -15C.fts Flat field frame saved as: 2357 04 ff -15C.fts Software A/D serial Number: #3329 Final Check, no frost visible@ -15 C Tested by: Dave Johnson October 13, 2006 |
1 comment:
External Triggering
The IMG's RJ11 connector next to the USB connector has 6 pins. Pin 1 is closest to the USB connector.
Pin 2 is electrical ground and Pin 3 is the logic input. (This input has a 3.3K pullup resistor to +5V).
The camera can be triggered by shorting pin 3 to pin 2.
In FLIGrab:
1. Run FLIGrab
2. Select the Shutter Control
3. On the pull down menu, select 'External trigger on LOW'
4. Press Done
5. Open the Grab Menu
6. Select desired frame and exposure settings
7. Click the Grab button
8. Short pin 3 to pin 2
9. The shutter will trigger
Note that the trigger can be changed to a rising edge input (pin 3 goes from 0V to +5V) by selecting External trigger HIGH in the hutter
control menu.
Also note that if you cannot find the 6 pin RJ cable, you can use a 4 pin cable!! With a 4 pin cable, the wire closest to the USB connector makes contact with pin 2 on the RJ-11 connector.
Therefore, for a 4 pin cable, connect the wire closest to the USB connector to ground and use the second wire as the trigger signal.
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