Variometers measure the rate of change of altitude by detecting the change in air pressure (static pressure) as altitude changes. Common types of variometers include those based on a diaphragm, a vane (horn), a taut band, or are electric based.

垂直速度表 （英語： variometer）也称上升和下降率指示器（rate of climb and descent indicator，缩写RCDI）、爬升率指示器（rate-of-climb indicator）、垂直速度指示器（vertical speed indicator，VSI）或垂直速率指示器（vertical velocity indicator，VVI），是向 飞行员 告知 航空器 的 上升或下降率 的一种 飛行儀表 [1]。 取决于航空器所属的国家和款型，仪表刻度可能使用 英尺 / 分钟 、 節 （1节约等于100英尺/分钟）或 米每秒 （1米/秒约等于200英尺/分钟）。

垂直速度表（英语：variometer）也称上升和下降率指示器（rate of climb and descent indicator，缩写RCDI）、爬升率指示器（rate-of-climb indicator）、垂直速度指示器（vertical speed indicator，VSI）或垂直速率指示器（vertical velocity indicator，VVI），是向飞行员告知航 …

垂直速度表 (variometer) 也称上升和下降率指示器（rate of climb and descent indicator),是向飞行员告知航空器的上升或下降率的一种飞行仪表。 同时还可辅助 地平仪 反映飞机是否平飞。

2020年11月3日 · Vertical airspeed is the rate at which an airplane ascends or descends. It is different from ground speed. More specifically, the rate of climb tracks the airplane’s vertical airspeed, and the rate of descent, or sink rate, is how quickly the airplane is descending.

In aviation, a variometer – also known as a rate of climb and descent indicator (RCDI), rate-of-climb indicator, vertical speed indicator (VSI), or vertical velocity indicator (VVI) – is one of the flight instruments in an aircraft used to inform the pilot of the rate of descent or climb. [5]

The cabin pressure is regulated by an outflow valve that opens and closes to increase, decrease or hold a certain air pressure inside the cabin. Pressurization becomes necessary at altitudes above 14,000 feet (4,300 m) above sea level to protect crew and passengers from the risk of a number of physiological problems caused by the low outside ...

2024年11月13日 · The Vertical Speed Indicator (VSI), also known as the Variometer, is a fundamental instrument in aviation, providing critical data on an aircraft’s rate of climb or descent. For pilots, understanding and effectively using the VSI is essential for maintaining safe altitude management and ensuring smooth flight operations.

The tables below indicate the properties for the Simulation Variables that can be used to get and set properties related to the various aircraft controls and systems. For information on the units listed for each variable, please see here: Simulation Variable Units.

Also known as a variometer or vertical velocity indicator, the VSI is crucial for maintaining safe flight operations, especially during climbs, descents, and approaches to landing.