The potency of a magnetic field is measured in terms of Gauss. Accordingly, if we define Degaussing. We can say that degaussing means the procedure to diminish the potency of a magnetic field. Any ship made from steel or a material having magnetic susceptibility is like a big floating magnet with a very high magnetic […]
magnetic
Earth’s Magnetic field
We all know that the Earth has its own magnetic field. And it is due to its composition and moreover due to its core. Our Earth’s core is composed of enormously heated metals in molten state under extreme high pressure. If you are an electrical guy, you must have read this before also that application […]
Ship’s permanent magnetic field
The Earth’s magnetic field is the cause of the ship’s permanent magnetic field. The process of constructing a ship in the Earth’s magnetic field generates an appreciable amount of permanent-magnetism in the floating metal structure. Whenever there is a movement of the floating metal structure, the magnetic lines of force also move with it. This […]
Degaussing coils
The potency of a magnetic field is measured in terms of Gauss. And therefore, by definition, degausse means to reduce/eliminate the strength of the magnetic field. Degaussing coils are used to reduce the effect of Earth magnetic field on the ship’s magnetic field. A magnetic mine is activated when the earth’s magnetic field is distorted […]
Ship’s induced magnetism
The magnetic field induced in the floating structure is dependent on the potency of the Earth’s magnetic field and the layout and direction of floating structure w.r.t. the Earth’s magnetic field. As discussed earlier, The ship’s induced magnetism is also a cause of the ship’s magnetic field just like the ship’s permanent magnetism. Ships are […]
Theory behind Impressed current cathodic protection
Impressed current cathodic protection is a method for ship’s hull protection. But, before discussing the Impressed current cathodic protection, its important to know the theory and history of cathodic protection. Cathodic Protection is a method of controlling corrosion and is based on electrochemical process. In this method, the corrosion of the cathode is achieved by […]
Electromagnetic Interference
As the name clearly suggests, EMI stands for Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). EMI can be defined as an electromagnetic or electro static disturbance that causes malfunctioning or undesired response in one or more electronic system, equipment or circuit. Recent studies and continuing evaluations have verified […]
EMI coupling methods
EMI is the short form of Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). Electromagnetic Interference can be defined as an electro-static/electro-magnetic disturbance which results in malfunctioning or undesired response in one or more electronic system, equipment or circuit. In this post, we will focus on the different EMI coupling […]