Question |
| Asked by: |
fawaz |
| Subject: |
magnetic compass system |
| Question: |
Why does magnetic compass system have directional gyroscope? |
| Date: |
27 February 2005
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Answers (Ordered by Date)
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| Answer: |
Eric James ----- - 11/05/2005 07:42:51
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| | Fawaz,
They generally don't. You may be thinking of a gimbal system.
Basically, gyro compasses are gyro compasses and magnetic compasses are magnetic compasses only.
Some super high quality ship's compasses and such use gyro stabilization for the compass, but it's not something you see in an ordinary magnetic compass.
Eric
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| Answer: |
Jerome Prater - 30/07/2005 22:31:03
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| | There are magnetic compass systems that use a directional gyroscope for short term reference. The magnetic compass basically updates the gyro's position at certain time intervals.
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| Answer: |
Narasimhan Varadarajan - 15/08/2006 10:31:39
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| | Mr. Fawaz,
Gyro magnetic compass is used on analog aircraft to combine the advantage of the earth's magnetic field sensor for long term accurate heading information with the the advantage of the Directional Gyro (mechanical) in providing a dead-beat indication during the aircraft manoeuvres. The gyro also helps eliminate acceleration errors and turning errors that a Direct Reading magnetic compass is prone to. Compass, in turn, helps to obviate the compensation to gyro for Apparent Drift due to earth's rotation, at lower latitudes.
Gyro also helps aircraft operate at higher latitudes, say, 60 degrees N/S, where the magnetic compass becomes unusable as a result of Dip or Inclination.
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