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spencer snygg
spencer snygg
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I think a lot of the people here are mistaken about the sensor. At your speeds, it doesn't matter what the physical shutter does (if it even has a physical shutter) Most sensors send their information one pixel at a time (or in clumps) rather than all at once, as if it were scanning - like reading a book. It starts on the upper left, reads across, goes down a line and repeats. This allows for a single stream of information to be recorded and requires far less wiring. This is done quickly, but if your need is 9 nanoseconds, then this will be very noticeable. For that, you will need a "global shutter" sensor that reads the sensor all at once. Currently, these are relatively rare and expensive because each sensor has to have its own stream instead of every sensor sharing the same stream. A lot more wiring.

I STAND CORRECTED: It starts the scan one line at a time, and reads the scan one line at a time, but if you have a longer exposure, those sensors are continuing to collect light the entire time. So long as your 9 ns flash happens between the time of every line being activated and the first line being read, you should be ok. (For example, if you have a one-second exposure and you do your 9 ns flash at the 1/2 second mark.

I think a lot of the people here are mistaken about the sensor. At your speeds, it doesn't matter what the physical shutter does (if it even has a physical shutter) Most sensors send their information one pixel at a time (or in clumps) rather than all at once, as if it were scanning - like reading a book. It starts on the upper left, reads across, goes down a line and repeats. This allows for a single stream of information to be recorded and requires far less wiring. This is done quickly, but if your need is 9 nanoseconds, then this will be very noticeable. For that, you will need a "global shutter" sensor that reads the sensor all at once. Currently, these are relatively rare and expensive because each sensor has to have its own stream instead of every sensor sharing the same stream. A lot more wiring.

I think a lot of the people here are mistaken about the sensor. At your speeds, it doesn't matter what the physical shutter does (if it even has a physical shutter) Most sensors send their information one pixel at a time (or in clumps) rather than all at once, as if it were scanning - like reading a book. It starts on the upper left, reads across, goes down a line and repeats. This allows for a single stream of information to be recorded and requires far less wiring. This is done quickly, but if your need is 9 nanoseconds, then this will be very noticeable. For that, you will need a "global shutter" sensor that reads the sensor all at once. Currently, these are relatively rare and expensive because each sensor has to have its own stream instead of every sensor sharing the same stream. A lot more wiring.

I STAND CORRECTED: It starts the scan one line at a time, and reads the scan one line at a time, but if you have a longer exposure, those sensors are continuing to collect light the entire time. So long as your 9 ns flash happens between the time of every line being activated and the first line being read, you should be ok. (For example, if you have a one-second exposure and you do your 9 ns flash at the 1/2 second mark.

Source Link
spencer snygg
spencer snygg
  • 1
  • 1

I think a lot of the people here are mistaken about the sensor. At your speeds, it doesn't matter what the physical shutter does (if it even has a physical shutter) Most sensors send their information one pixel at a time (or in clumps) rather than all at once, as if it were scanning - like reading a book. It starts on the upper left, reads across, goes down a line and repeats. This allows for a single stream of information to be recorded and requires far less wiring. This is done quickly, but if your need is 9 nanoseconds, then this will be very noticeable. For that, you will need a "global shutter" sensor that reads the sensor all at once. Currently, these are relatively rare and expensive because each sensor has to have its own stream instead of every sensor sharing the same stream. A lot more wiring.