A Control Technique of Stepper Motors for Simulated Altitude Indicator Development Used in Helicopter Simulator
Abstract: A helicopter
simulator has to be built to fully resemble the
real cockpit environment including its instruments. A simulated instrument incorporates
mechatronics technology where a mechanical system is electronically controlled
to indicate a certain flight variable. This paper describes development of a
simulated altitude indicator (SAI) used
for a super puma helicopter simulator. This indicator has a main pointer which
can rotate 100 times, a small pointer which can rotate 10 times, and a
triangular pointer which can rotate once. The novel feature of this paper is that
the main and small pointers are actuated by ready on the self stepper motors,
instead of commonly used synchros. A control technique is proposed to rotate
the motor, and the positioning error is minimized by software compensator. From
the repetitive precision experimental
result it was obtained that the developed SAI could work well with the degree
of precision of 0.03 (dial memory) for the main pointer and 0.22 (dial memory)
for the small pointer.
Author: Estiko Rijanto
Journal Code: jptinformatikagg100003
