There are various navigational instruments used by the U.S. Navy and Coast Guard, as well as all the other ships navigating the world's waterways. These navigational instruments are used in ships for various purposes. Some are used to determine the present position of the ship and some to indicate the speed as well as determine the direction and some to indicate when the vessel will arrive at its destination. Some of these have been used for years like charts and maps and some are electronics and computer operated. Here are just a few of the instruments used on board sea-faring vessels.
Telescopic marine alidades are navigation instruments used in ships. These are navigational instruments used to take terrestrial bearings of the vessel. The instrument is mounted on a bearing compass or bearing compass repeater when used. It is used to obtain the bearing of the vessel and is equipped with a telescopic sight and prismatic optical system. Through the use of the telescopic marine alidade, an accurate bearing can be made of the object in the distance. This instrument helps provide accurate marine data while at sea.
Another piece of equipment that needs no electricity but still is very helpful is the three-arm protractor. In these modern days, a GPS system is often used, but the three-arm protractor still can be used to quickly determine a ship's location, which certainly can be important if electrical systems fail. Calculations can be made with data measured from this instrument, and the latitude and longitude can be determined. Jointly used with this navigational instrument are navigational charts.
Binoculars and telescopes are interesting optical instruments also used in navigation. These are instruments used to make things look bigger when you look through these instruments. Binoculars are two telescopes that are the same and connected together and used with the person looking with both eyes. A telescope is only one scope and only one eye is used. With binoculars, a three dimensional image is seen because both eyes are used. Using a binocular can produce an image that is more natural for the person looking at an object. Even with objects that are far, the image seen will still be clearer and look bigger.
In general navigation, navigational sextants are instruments used with great importance. Measuring angles between two objects can be made, and this is where sextants are used. This is a navigational instrument with two mirrors used and the first is used to view the horizon. Light from the sun and its reflection is used, and this is the function of the second mirror because it is movable. The instrument's scale will then be used when reading the angle between the two.
Electronic equipment like sonar and radar are also very important in navigation. These are instruments used to determine and locate objects through the echo of signals bounced off the object. Radar is used with radio waves as medium and sonar with sound waves. Inland or through the air, radio waves are used and in the seas or underwater, sound waves are the mediums used. Radar and sonar have different applications because of the different type of energy used, radio waves for radar and sound waves for sonar.
Telescopic marine alidades are navigation instruments used in ships. These are navigational instruments used to take terrestrial bearings of the vessel. The instrument is mounted on a bearing compass or bearing compass repeater when used. It is used to obtain the bearing of the vessel and is equipped with a telescopic sight and prismatic optical system. Through the use of the telescopic marine alidade, an accurate bearing can be made of the object in the distance. This instrument helps provide accurate marine data while at sea.
Another piece of equipment that needs no electricity but still is very helpful is the three-arm protractor. In these modern days, a GPS system is often used, but the three-arm protractor still can be used to quickly determine a ship's location, which certainly can be important if electrical systems fail. Calculations can be made with data measured from this instrument, and the latitude and longitude can be determined. Jointly used with this navigational instrument are navigational charts.
Binoculars and telescopes are interesting optical instruments also used in navigation. These are instruments used to make things look bigger when you look through these instruments. Binoculars are two telescopes that are the same and connected together and used with the person looking with both eyes. A telescope is only one scope and only one eye is used. With binoculars, a three dimensional image is seen because both eyes are used. Using a binocular can produce an image that is more natural for the person looking at an object. Even with objects that are far, the image seen will still be clearer and look bigger.
In general navigation, navigational sextants are instruments used with great importance. Measuring angles between two objects can be made, and this is where sextants are used. This is a navigational instrument with two mirrors used and the first is used to view the horizon. Light from the sun and its reflection is used, and this is the function of the second mirror because it is movable. The instrument's scale will then be used when reading the angle between the two.
Electronic equipment like sonar and radar are also very important in navigation. These are instruments used to determine and locate objects through the echo of signals bounced off the object. Radar is used with radio waves as medium and sonar with sound waves. Inland or through the air, radio waves are used and in the seas or underwater, sound waves are the mediums used. Radar and sonar have different applications because of the different type of energy used, radio waves for radar and sound waves for sonar.
About the Author:
Carey Bourdier loves blogging about precision scientific instruments. To get more information about surveying instruments such as a surveyor compass, or to discover other alignment instruments, check out the Warren Knight site now.
Posts
No comments:
Post a Comment