Altimeter Meaning, Synonyms, Antonyms, Translation, and Use Cases

Altimeter

In today’s word for the day, we will give some highlights on the meaning of Altimeter, its synonyms, antonyms, translation, and use cases.

Meaning:

According to Merriam-Webster, an Altimeter is an instrument for measuring altitude. It is an aneroid barometer designed to register changes in atmospheric pressure accompanying changes in altitude.

According to Wikipedia, An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level.

The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth under water. 

The most common unit for calibration is hectopascals (hPa), except for North America and Japan where mercury (inHg) is used. 

To get an accurate altitude reading in either feet or meters, they must calibrate correctly the local barometric pressure using the barometric formula.

These are important navigation instruments for aircraft and spacecraft pilots who monitor their height above Earth’s surface.

 

Other types of Altimeter:

  • A Pressure Altimeter

It is an instrument used when a barometer supplied with a nonlinear calibration to show its altitude. It is a device found in most aircraft, hiking, climbing, and skydiving.

According to Wikipedia, In 1931, the US Army Air Corps and General Electric tested this device for aircraft.

They considered this more reliable and accurate.

This new instrument used a series of high-pitched sounds to measure the distance from the aircraft to the surface. 

This instrument measures altitude more directly. It uses the time taken for a radio signal to reflect from the surface back to the aircraft.

This is used to measure height above ground level during landing in commercial and military aircraft. 

 

Synonyms

 Measuring instrument, Altimetry, Altitude gauge, Astrolabe, Altimetrik, Graphometer, and Clinometer. 

 

Antonyms

Altitude meter, Aneroid Barometer, and Kollsman window.

 

First Known Use

The First known use of an altimeter was in 1904.

 

Translation

The word Altimeter was borrowed from Latin Altus-high and a new Latin- meter.

This word appears in the word lists of early Latin-English dictionaries, such as the 1572 edition of Richard Hulet’s dictionary.

As a word used in the early 20th century for instruments employing barometric pressure to measure altitude, the word may be a recoinage from Latin Altus and -METER.

 

Use Cases

  • The pilot verified the Altimeter.
  • The airplane radar Altimeter is not working.
  • We are experiencing radar Altimeter failure.
  • We recovered an Altimeter switch at the bomb scene.

 

Video Explanation of Altimeter

This video will give you some further explanation of the meaning of Altimeter.

 

 

 

 

Summary

A device that measures altitude, the distance of a point above sea level is known as Altimeter.

 They are important navigation instruments for aircraft and spacecraft pilots who monitor their height above Earth’s surface.

 

Frequently Asked Questions

What is the principle of Altimeter?

Research has it that, with an increase in the height above sea level, the atmospheric pressure decreases. 

Thus, a barometer that measures the atmospheric pressure uses in order to measure the altitude of a place above sea level.

Is an Altimeter a barometer?

This instrument is a type of barometer which measures the vertical distance to the surface, necessary, for a pilot to maintain the desired or assigned altitude during flight.

How accurate are Altimeters?

Research has it that, With proper calibration, the barometric instrument of an outdoor watch or handheld will report elevation readings ranging from -2,000 to 30,000 feet with an accuracy of +/-50 feet. 

Elevation values greater than 30,000 feet can generate, but may not be accurate because of environmental factors.

What are the two types of Altimeter?

Two types of altimeter are in common use in aircraft: 

Barometric; it is a device that measures altitude by calculating the location’s air pressure.

Air pressure decreases as altitude increases.

Radio; it is an airborne electronic device capable of measuring the height of the aircraft above terrain immediately below the aircraft.

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