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Introduction:
Introduction:
Task Description: Take images with the flight lens and EM payload structure to determine the baffle restriction geometry required to prevent the camera from imaging areas outside of the satellite.
Completion Deadline: 21 Jan 2021
Team Member: Matt
Resources Required: EM Payload structure, EM camera, Arducam camera development board, Arduino, 20 male/female wires, SD card, SD card reader, laptop, ASIF clean room, Arduino Mega, piece of paper, calipers.
Verification Activities: V-PLD-0350*
*This test is for designing the payload lens baffle. It partially verifies V-PLD-0350 but does not verify it completely. An additional test is required with a full prototype baffle to complete the activity.
Pass Criteria: Baffle lens restriction is determined which prevents the camera from imaging objects external to the structure.
Results
Results
Camera and lens were successfully installed and lens was put into an acceptable focus, shown in the image to the right, as per the test instructions.
The card-stock was moved over the lens until it fully blocked the area external to the structure, as seen in the second image.
Above: Camera / Arduino Set-Up
Below: Camera Field of View in Focus without Restrictions
The distance from the cardstock edge to the edge of the camera baffle was then measured five times as follows:
17.67 mm
17.77 mm
17.89 mm
17.67 mm
17.49 mm
Average: 17.698 mm
This was rounded to two decimal places as: 17.70 mm
Above: Camera Field of View with Restriction
Below: Card-Stock Position for above Field of View Restriction
Model Update
Model Update
Based on the above test, the Baffle was updated to have the following restriction. A 1/16" radius was added to the edges of this restriction for manufacturability.
Next Steps
Next Steps
A 3D printed baffle EM model is being printed and the above test will need to be repeated to confirm it restricts the camera's field of view as needed.
Camera Baffle with Restriction
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