nomadwei.blogg.se - Project on meteorological instruments and their uses

Moving Iron ammeter (MI): It can measure both alternating and direct current. It measures only the direct current (DC). The more is the current passing through the coil, more will be the deflection. When the current is passed through the coil, the coil starts deflecting. Permanent Magnet Moving Coil (PMMC) ammeter: It has a coil located between the poles of a magnet.

Permanent Magnet Moving Coil (PMMC) ammeterīased on the type of measurement we do, there are two types:.

Types of Ammeter based on constructing principle: So, it is the instrument that measures the current in ampere, so it is called an ammeter or ampere meter. The electric current is a flow of electrons that is measured in ampere. This scientific instrument is used to measure the electric current. The first radio altimeter was invented by Lloyd Espenschied in 1924. The more is the time taken, the more will be the altitude. For example, it sends the radio waves from the object in the air to the ground, then measures the time taken by the radio waves to travel from the object to the ground and to return from the ground to the object. Radio altimeter: It measures the altitude or distance above land or water surface by using radio waves' signals. Pressure altimeter was invented by German engineer Paul Kollsman in the 1920s. So, lower the pressure the more will be the altitude of the object. It works on the fact that the air pressure tends to decrease with an increase in the altitude. Pressure altimeter or aneroid barometer: It measures the location's altitude or distance above a fixed surface by calculating the air pressure of the object that can be an airplane or a hot air balloon or any other object flying in the sky. For example, it can measure the altitude of an airplane, spacecraft, etc., from the earth or sea surface. It is used to measure the altitude or distance of an object above a fixed level such as the earth' surface, water surface, etc. Chandraj Shah, whose continual backing and direction have been useful to us for attaining exponential development in the current market.It is also known as altitude meter. We also manufacture special purpose instruments for measurement of environmental parameters from mechanical to electronics.įor our accomplishment story, we are grateful to our Mr.

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