Manta G032 camera measurements

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20.309: Biological Instrumentation and Measurement

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Overview

This page contains data from the demo I did in lecture on 9/22/2015 of the Manta G032 camera.

The point was to measure the gain, dark noise, and read noise of the Manta G032 cameras we use in lab.

Measurement procedure

  • Light source directed at the camera so to produce a range of intensities
  • 100 frame movie recorded at 20 FPS with an exposure of 150 μs.
  • 100 frame dark movie recorded with identical settings.

Calculations

The expression for the value read from pixel $ x,y $ during time interval $ t $ is:

$ P_{x,y}[t]=g \left(I_{x,y}[t]+R_{x,y}[t]+D_{x,y}(t)) \right) $,

where

  • $ I_{x,y}[t] $ is the number of photoelectrons that are generated during interval $ t $,
  • $ R_{x,y}[t] $ is the read noise during time interval $ t $,
  • and $ D_{x,y}[t] is the number of dark current electrons generated during time interval <math>t $