2-1925009-3 Allicdata Electronics
Allicdata Part #:

2-1925009-3-ND

Manufacturer Part#:

2-1925009-3

Price: $ 160.08
Product Category:

Uncategorized

Manufacturer: TE Connectivity Aerospace, Defense and Marine
Short Description: N12737 = CIRCULAR
More Detail: N/A
DataSheet: 2-1925009-3 datasheet2-1925009-3 Datasheet/PDF
Quantity: 1000
25 +: $ 145.52100
Stock 1000Can Ship Immediately
$ 160.08
Specifications
Series: *
Part Status: Active
Description

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2-1925009-3, or radar altimeter, is a device used in measuring the precise distance between an aircraft and the ground or sea surface. Radar altimeters transmit microwave pulses and measure the round-trip travel time of the signal, thereby giving a precise measure of the distance and relative height. In addition to aircraft level flight, radar altimeters are also used in surveying work, satellite tracking, oil platform levelling, terrain mapping, and analysis of wave patterns of the ocean.

Radar altimeters operate on the principle of active microwave remote sensing, which involves the transmission of an electromagnetic (EM) signal and subsequent reception and analysis of the received signals. The signal is either an amplitude-modulated continuous wave (AMCW) or a frequency-modulated continuous wave (FMCW). The receiver in the altimeter is tuned to the transmitting signal in order to capture the reflected wave. The radar component is typically an X-band radar (frequency range of 8-11GHz in the EM spectrum). The received radar wave is then processed to measure the difference between the transmitted and received signals. This time difference is then used to calculate the round-trip travel time of the transmitted signal, or the time of flight. This data is then calculated to determine the distance and relative height of the object receiving the signal.

Radar altimeters are extensively used in avionics, the onboard systems of an aircraft used to measure environmental data. They are employed in air navigation, to help pilots and aircraft maintain a specified altitude above the ground or sea in order to avoid obstacles. This is done by monitoring the radar altitude measurement, which is the difference between the aircraft’s actual altitude and the altitude of the ground or sea level below. In marine applications, radar altimeters are used to measure wave patterns and water depth in order to aid in navigation. They can also help assess the sea state to detect signs of potential danger such as freak waves.

Radar altimeters can also be used in geophysical surveying to determine the slope of a land surface or sea bottom, helping to identify potential sediment-laden areas or large obstructions. In hydrology, radar altimeters can be used to measure the terrain of a river or lake, aiding in the prediction of possible flooding.

Radar altimeters are an extremely accurate and reliable instrument for measuring distances and relative heights. However, they are limited in their capacity to measure distance or heights over liquids and are also susceptible to interference from other sources due to their EM radiation. Accurate measurements require good visibility of the terrain or object being measured, which can be severely limited in adverse weather conditions or terrain such as high mountains or dense forests.

Overall, radar altimeters are an extremely useful device for measuring distances and relative heights, with myriad applications in the fields of aviation, surveying, satellite tracking, oil platform levelling, terrain mapping, and hydrology.

The specific data is subject to PDF, and the above content is for reference

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