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English: Table for range estimation showing target sizes, distances and corresponding angular measurments. Angular sizes are given in milliradians (mrad), ranges in meters, and target sizes are shown in both in centimeters, millimeters and inches.
The magnetic flux density does not measure how strong a magnetic field is, but only how strong the magnetic flux is in a given point or at a given distance (usually right above the magnet's surface). For the intrinsic order of magnitude of magnetic fields, see: Orders of magnitude (magnetic moment). Note:
The purple curve and circle is the image of a small circle around the branch point z=0; the red curves are the images of a small circle around the point z=-1/e. The range of W 0 is inside the C-shaped black curve. The range of each of the other branches is a band between two black curves that represent points on the negative real axis (a black ...
A permanent magnet in such a field rotates so as to maintain its alignment with the external field. Magnetic torque is used to drive electric motors. In one simple motor design, a magnet is fixed to a freely rotating shaft and subjected to a magnetic field from an array of electromagnets. By continuously switching the electric current through ...
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The net magnetic moment of the magnet m therefore is =, where the triple integral denotes integration over the volume of the magnet. For uniform magnetization (where both the magnitude and the direction of M is the same for the entire magnet (such as a straight bar magnet) the last equation simplifies to: m = M V , {\displaystyle \mathbf {m ...
Samsung Thales Co., Ltd. (until 2001 known as Samsung Thomson-CSF Co., Ltd.) was a joint venture between Samsung-Techwin and the France-based aerospace and defense company Thales. It was established in 1978 and is based in Seoul. [111] Samsung's involvement was passed on to the Hanwha Group as part of the Techwin transaction. [110]
This coupling features two face-to-face magnetized disks: the driving magnet on the dry side, and the driven magnet on the underwater side. Torque is transferred by shear forces between the attracting magnetic disks, [5] but this attraction can also produce an axial load as the disks pull on each other. There are two main designs for the ...