Abstract:
The knowledge of R.P.M. of the aircraft engine propeller is very important to
give the maximum help, during the various stages of aviation stage.
Each stage of phases flight (take-off , cruise and landing) need acertain and
accurate number of propeller revoluation per minute . This study concerns in
electronic monitoring to the RPM of an aircraft engine propeller during flight.
Control circuit was designed to connect a switch to the engine propeller which
generates a pulse at a full round of propeller, then the pulse was passed from the
switch to the computer in which the RPM is calculated using C++ program.
The Electronic Circuit was designed As Follows:-
Snap action was used as type of switch which produce a pulse by complete one
cycle, then stored in SN74373, which was stored the pulse then pass it to the
computer via a D-25 cable connected respectively with it’s features so chosen as a
link between the computer and the switch. And when the pulse reach the computer,
the computer starts account the number of RPM using the C++ program. So the
monitoring of the RPM will be very accurate using the computer for it’s speed and
accuracy.
