An altimeter actually measure brometric (atmospheric) pressure, which converts to height above sea level
Altimeter
what are all the instruments use to measure altitude
radio altimeter
If the question is about how high the airplane is in the atmosphere, I would think that an altimeter would be an answer to consider.
Aircraft use an altimeter to measure the current altitude. The altimeter uses barometric pressure to sense the altitude. As you go up in altitude the air gets thinner. The higher you go the thinner it is. The altimeter is basically just a very sensitive barometer (a barometer is a device used to measure air pressure), so sensitive in fact that it can reliably detect differences in altitude as small as 10 feet. The drawback with using this method is that barometric pressure varies greatly depending on the local weather. Thunderstorms, for example, always bring with them a sharp increase in barometric pressure, and so pilots must always ensure that their altimeter is set to compensate for these differences. Another drawback with this method is that it only measures altitude above sea level. When you take into consideration that as you get away from the coast, the ground may well be thousands of feet above sea level, you can see why this may pose problems. As a result all aviation charts have the altitudes of all airports, and most other objects posted on them. To combat these problems, many more sophisticated aircraft use radar or laser systems to determine their altitude above ground. Additionally, GPS can be used to determine altitude, which is getting more and more common. Neither of these solutions seek to replace the altimeter, but flight crews do use them in concert to maintain accurate information on their position. Also, (for altitudes generally below 2500') radar altimeters are used to measure actual height above the ground.
Altimeter
what are all the instruments use to measure altitude
An altimeter.
The barometer became used as an altimeter in early aircraft to measure height above the ground and has been refined to be in every aircraft today.
radio altimeter
Haga is the brand name. An altimeter is used to measure altitude, which is how high you are above sea level.
An altimeter does not actually measure altitude directly, but rather just atmospheric pressure. So an altimeter is actually a barometer created for a specific purpose. See related link The altimeter measures the height above the ground and has a pointer which is adjustable depending in which air field you are taking off on. it measures the pressure of the air as you get higher off the ground the pressure reduces therefore it is able to determine your height above ground.
An altimeter is an instrument to measure the altitude.
YES. radio altimeter is programmed to read accurate with landing gear down i.e. height of the tyres above the ground. Therefore if the configuration is clean the altimeter will underread.
In an aircraft an instrument called an altimeter shows this.
Yes, "altruism" is a word that has the prefix "alti." It means selflessness and concern for the well-being of others.
An altimeter determines the height by the difference in air pressure. The higher you go the thinner the air becomes (lower air pressure). A skydiver will zero his altimeter on the ground, and as the skydiver increases altitude the altimeter can determine the distance traveled by determining the difference in air pressure.