English
An altimeter is an instrument that measures the altitude of an object above a fixed level, typically mean sea level. In aircraft, altimeters are essential for monitoring flight height.
There are several types of altimeters:
Mechanical altimeters contain an aneroid barometer capsule that expands/contracts with pressure changes to indicate altitude against a calibrated dial.
Analog electronic altimeters use electronic pressure sensors and circuitry to derive and display altitude.
Digital altimeters process altitude data digitally from electronic pressure sensor inputs for numerical display. They may offer features like data logging.
Radio altimeters measure absolute altitude above terrain using radar signals to detect ground proximity. Useful for low-level flight.
Key specifications for altimeters include measurement range, accuracy, graduation increments, power input, and any extra capabilities like encoding or data interfaces. Reliable sensitivity to pressure changes is critical.
Altimeters must be properly adjusted for local atmospheric pressure conditions. They provide real-time elevation data to pilots during flight for navigational safety. Advanced integrated flight systems may blend data from multiple altimeter sources.
0 There are several types of altimeters:
Mechanical altimeters contain an aneroid barometer capsule that expands/contracts with pressure changes to indicate altitude against a calibrated dial.
Analog electronic altimeters use electronic pressure sensors and circuitry to derive and display altitude.
Digital altimeters process altitude data digitally from electronic pressure sensor inputs for numerical display. They may offer features like data logging.
Radio altimeters measure absolute altitude above terrain using radar signals to detect ground proximity. Useful for low-level flight.
Key specifications for altimeters include measurement range, accuracy, graduation increments, power input, and any extra capabilities like encoding or data interfaces. Reliable sensitivity to pressure changes is critical.
Altimeters must be properly adjusted for local atmospheric pressure conditions. They provide real-time elevation data to pilots during flight for navigational safety. Advanced integrated flight systems may blend data from multiple altimeter sources.
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