View Full Version : A question for ME students

03-13-2001, 01:10 AM
Following is a question for mechanical engineering students. Please, provide
a concise answer and a brief explanation. I will compile and post the answers
to the list.

MHD is a sensor designed to measure angular velocities of rigid bodies. Suppo
se an MHD is attached to a moving (translating and rotating) rigid body, so th
at it measures angular velocities wrt the body-fixed local coordinate system.
If the MHD measures angular velocities in a body-fixed local coordinate syste
m, then these angular velocities should always be equal to zero since the body
does not rotate wrt to the body-fixed coordinate system. The question is: wh
at does MHD measure? Why?

Erik G Takhounts

Erik G. Takhounts, Ph.D.
Senior Research Engineer
Conrad Technologies Inc.
501 School Street, S.W., Ste. 401
Washington, D.C. 20024
Ph. (202) 863-1931
Fax (202) 863-0909
Email: ETakhounts@NHTSA.DOT.GOV

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