a measuring instrument for measuring variations in a magnetic field
An instrument used to measure variations in a magnetic field
A rate-of-climb indicator
A variometer is one of the flight instruments in an aircraft used to inform the pilot of the near instantaneous rate of descent or climb. It can be calibrated in knots, feet per minute or metres per second, depending on country and type of aircraft. In powered flight the pilot makes frequent use of the VSI to ascertain that level flight is being maintained, especially during turning maneuvers. In gliding, the instrument is used almost continuously during normal flight, often with an audible output, to inform the pilot of rising or sinking air. It is usual for gliders to be equipped with more than one type of variometer. The simpler type does not need an external source of power and can therefore be relied upon to function regardless of whether a battery or power source has been fitted. The electronic type with audio needs a power source to be operative during the flight. The instrument is of little interest during launching and landing, with the exception of aerotow, where the pilot will usually want to avoid releasing in sink.
Chambers 20th Century Dictionary
vā-ri-om′e-tėr, n. an instrument used in measuring magnetic intensity. [L. varius, various, Gr. metron, measure.]
The Standard Electrical Dictionary
An apparatus used in determining the relative values of the horizontal component of the earth's magnetic field in different places.
The numerical value of variometer in Chaldean Numerology is: 1
The numerical value of variometer in Pythagorean Numerology is: 9
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