Introduction To Engineering Camera Lab #2 - 1 Agenda Shutter Mechanism Review basic statistical methods Opening the camera case Measure flash duration.

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Presentation transcript:

Introduction To Engineering Camera Lab #2 - 1 Agenda Shutter Mechanism Review basic statistical methods Opening the camera case Measure flash duration using the oscilloscope Measure shutter speed using the oscilloscope

Statistical Mean The mean is our “best guess” of the true value of the quantity we’re measuring. The arithmetic average of all N measurements

Standard Deviation Estimate of error in measurements Small error values are good

Normal Distribution f(x) is probability of observing value

Camera Back Snap location 4 Snap location 5 Snap location 2 Snap Location 1 Snap Location 3

Camera with Back Removed Light seal groove

Back Cover from Camera Ridge for light seal

Important notes: Each group must record data Make sure one person in each group gets all the data! Make sure data is given to all group members

Remove only the camera case back plate. Measure flash speed with light probe and oscilloscope and record value. Measure shutter speed with light probe and oscilloscope and record value. Sketch oscilloscope traces. Lab Steps for Today

Assignment Read sheet on experimental error from course packet Calculate mean and standard deviation for flash duration and shutter speed Prepare for Camera Lab 2 Part B