altitude indicator的意思|示意

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Altitude indicators are instruments used to display and measure the aircraft's altitude in relation to the ground. These indicators are usually displayed in the cockpit and range from a simple barograph to a complex box filled with dials and levers.

The primary and most common type of altitude indicator is the altimeter, also commonly referred to as an altimeter. Altimeters measure ambient air pressure and convert it to an altitude with reference to a specific pressure setting. These instruments measure changes in the pressure of the atmosphere and are corrected for the nonstandard pressure level that exists at increasing altitudes.

The altimeter consists of two basic components: a dial and a display. The dial contains an aneroid capsule that is sensitive to changes in pressure. As the aircraft ascends, the decrease in pressure causes the capsule to expand, rotating a needle pointer on the dial. The display is usually a vertical scale, marked in thousands of feet. Altimeters also provide a setting knob which allows the pilot to adjust the altitude indicator for various pressure settings.

Another type of altitude indicator is the artificial horizon. This instrument displays the aircraft's pitch and roll angle in relation to the horizon. It displays the aircraft's orientation and flight path information, and can be used for navigation and orientation during flight. The artificial horizon is usually combined with the heading indicator to give a complete picture of the aircraft's position in relation to its flight path.

Altitude indicators are essential when flying in any type of aircraft, as they play an important role in ensuring safe and effective flight. The instruments provide pilots with a visual display of the aircraft's altitude, making it easier to maintain a safe and controlled altitude.