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What are susceptible to magnetic watch
What are susceptible to magnetic watch
wall clocks magnetic Basics:
1) Anti-magnetic watch Specifications
Japanese watch: There are not usually magnetic marker, labeled and marked with ordinary magnetic magnetic strengthening three.
Not magnetic standard: resistant to 1600A / m magnetic field (equivalent to 20 gauss).
Ordinary magnetic (figure is inverted 'U' underneath a cross): resistant to 4800A / m magnetic field (equivalent to 60 gauss).
Strengthening magnetic (GRAPHICS inverted 'U' underneath and two horizontal): resistant to 16000A / m magnetic field (equivalent to 200 gauss).
Speaking magnetic , you have to mention MILGAUSS Rolex watch, the watch uses its own special cobalt blue steel springs containing rare earth Parachrom nickel, combined with little openings sealed soft iron magnetic shield, the magnetic features to enhance degree 100000A / m, called magnetic watch model.
2) the magnetic field decay with distance
It is inversely proportional to the square of the magnetic field strength and distance, with increasing distance, the magnetic field intensity decay rapidly.
Common anti-magnetic watch, as long as more than 5cm away from the magnetic material is sufficient security. Even if there is no marked anti-magnetic watch, as long as left farther (10cm or more) on the line. Daily life, as long as the slight attention, you can avoid the dangers of magnetic field on the watch, no need to talk about magnetic discoloration.
Example 3) ordinary magnetic material
Cell phone, handset, computers, shavers, radios, handbag Cikou, refrigerator doors, cooker, magnetic bracelets, magnetic pillows.
Mechanical magnetic compromised
Travel speed is controlled by the mechanical watch balance wheel and hairspring. After the watch by magnetic, magnetic balance wheel so that the wobble frequency changes, then running speed gear system will change, wall clocks go mad. After that is magnetic, it is possible to watch stop, slow or fast. Mild symptoms, the daily error of tens of seconds. Severe, the daily error of up to several minutes. After magnetic watch by its own magnetic not receded, the need to return to normal for the degaussing repair.
Watch diagnosis by magnetic methods
Paranoid suspicion that his watch is non-magnetic, it will seriously affect the people of the spirit of peace, and here a simple method by magnetic diagnostic watch: go to the flea market to buy a compass, the watch closer to the compass, compass deflector if badly that the watch is affected by magnetism. Even that is no magnetic watch, because the watch itself is made of steel, so when the watch near a compass, compass will also fretting, only a small degree of deflection.
This method can also be used to detect whether there is a place keeping watch field. Watch the compass to get custody of place, if the compass deflection, the magnetic material there is near suspicious. Home tool steel materials, such as pliers, etc., often unknowingly, when approaching the magnetic material and by magnetic. Watch custody should also take place to open these tools have been affected by magnetism.
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