Military of China, force comment.
Military of China, force comment.

suspension test magnetic instrument
laid dipping measured magnetic cylinder
to the hull around the degaussing cable
adjust the vertical degaussing cable

text/Bo Yang, Song Bin Yuan

early summer, the South China Sea naval base, piercing the sky, a new missile frigate was criss-cross cable “tied.”

“start power degaussing!” As a combat support ship South China Sea Fleet Detachment 203 South diligence boat captain Du Yanbing order, the current output stream from the degaussing ship, ship by cables spread throughout the body by degaussing.

power degaussing several times repeated, the results show: The magnetic field degaussing ship full compliance.

Captain Du Yanbing introduced, the earth is a huge magnet, the long-term iron and steel warships built in the geomagnetic field magnetization, external shocks such circumstances, the surrounding space and the internal magnetic field is generated. Magnetized ships are vulnerable to magnetic mines, torpedoes and other weapons attack, or become the target magnetic detection equipment.

modern naval warfare, on a regular basis not only to protect ships from degaussing magnetic weapons threat, but also ships to achieve “stealth” the necessary conditions.

degaussing operation of the ship stability requirements are more demanding, is usually small anchorage in waves, tidal flat time slot.

I saw at the scene, was degaussing degaussing ship into space, according to North and South magnetic heading error is less than 3 degrees with the principle of a fixed rope.

degaussing engineers according to the model ships, tonnage, ferromagnetic material the magnetic field distribution and measured the size, to determine the use of degaussing way, the number of turns around the cable and the point, and the computer terminal, type pulse current length, intensity and other parameters. Determined in accordance with the officers and men around the point for cable, the cable channel strapped to a steel ship’s body.

process is completed around the cable, which began to be repeated degaussing ship power, measure, adjust, until the magnetic field parameters meet the requirements. Vessel, the degaussing process is usually repeated about 20 times power.

handling 203 ships fitted out in the South 10 years ago, has successfully completed the task of more than 200 types of ships degaussing. In order to improve the efficiency of demagnetization, the ship officers and men worked out in practice, a lot of useful good way. Measuring magnetic field, we should measure the magnetic cylinder to the ship at the end of hanging a certain depth, measured set of cables and ropes when the magnetic tube can be easily ship bottom fin and the propeller cut off. To this end, men invented the “U-shaped rope fast cuff” and “double boat shackle synchronization method”, using two boats at the same time from both sides of the rope with a U-shaped tube measuring magnetic drag the specified location, which greatly facilitates degaussing operation, improve the speed of magnetic measurements.

in the past and are based around the cable ship from bow to stern of the “one-way around the cable law,” slow, difficult, and they worked out in practice, the middle from the ship to two of the “two-way cable around Law “, doubling the efficiency. Electrical length Guo Jianguang invention “cable into the extravehicular guide wheel”, greatly improving the speed of the cable into the spacewalk.

Today, 203 vessels more efficient than a single ship degaussing equipment just out to raise more than 50%.

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