ITEST Teacher Workshop. MATE Center ITEST Grant Pacific Northwest ROV Regional. Introductions. Rick Rupan – rupan@uw.edu Univ. of Washington Oceanography Dept. ARGO Float Fabrication Wes Thompson  thompson.wes@gmail.com Univ. of Washington Applied Physics Lab Analytical Chemistry
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How big do these get?
How Big Do These Things Get?
Classes of ROVs
Kaiko, First ROV to Challenger Deep10,916 meters (6.8 miles)
An object in a fluid will displace an amount of fluid equal to its volume. The volume is used to determine the density of the object (D = mass/vol). To determine buoyancy, the density of the fluid and the density of the object can be compared.
Most ROVs are close to neutrally buoyant. This allows the operator to control the vehicle’s position with a motor, rather than try to change its buoyancy.
Objects that float upward are positively buoyantDobject < Dfluid
Objects that sink are negatively buoyant
Dobject> Dfluid
Objects that neither rise nor sink are neutrally buoyant
Dobject= Dfluid
V
I x R
Current flows through loops called circuits which have three fundamental parts
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Series Circuit
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Parallel Circuit

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