Kompass. Poslovni imenik

The needle is mounted on a low-friction pivot point, in better compasses a , so it can turn easily. Needle-and-bowl device If a needle is rubbed on a or other magnet, the needle becomes magnetized. This individual zone balancing prevents excessive dipping of one end of the needle which can cause the compass card to stick and give false readings. Compasses that include compensating magnets are especially prone to these errors, since accelerations tilt the needle, bringing it closer or further from the magnets. Usually, a diagram called a shows the directions , , , and on the compass face as abbreviated initials. A containing a ship's standard compass, with the two iron balls which correct the effects of materials. Imperial Russia used a system derived by dividing the circumference of a circle into chords of the same length as the radius. This sliding counterweight, called a 'rider', can be used for counterbalancing the needle against the dip caused by inclination if the compass is taken to a zone with a higher or lower dip. When one turns from a heading of east or west the compass will lag behind the turn or lead ahead of the turn. Also, the needle starts to point up or down when getting closer to the poles, because of the so-called.
Construction of a magnetic compass Magnetic needle A magnetic rod is required when constructing a compass The degree system spaces 360 equidistant points located clockwise around the compass dial
The sensor uses highly calibrated internal electronics to measure the response of the device to the Earth's magnetic field By accurately determining its position on the Earth at times a few seconds apart, the device can calculate its speed and the true bearing relative to of its direction of motion
First the can be adjusted so that it is aligned with the direction in which the ship travels, then the effects of permanent magnets can be corrected for by small magnets fitted within the case of the compass Manufactured primarily for maritime and aviation applications, they can also detect pitch and roll of ships
As the compass fill liquid is noncompressible under pressure, many ordinary liquid-filled compasses will operate accurately underwater to considerable depths The effect of this means a map with the latest declination information should be used
If it does, it means that the area or rock the compass was previously at is causing interference and should be avoided The Oxford Encyclopedia of Philosophy, Science, and Technology in Islam
Fluxgate electronic compasses can be calibrated automatically, and can also be programmed with the correct local compass variation so as to indicate the true heading By carefully recording distances time or paces and magnetic bearings traveled, one can plot a course and return to one's starting point using the compass alone
The liquid inside the capsule serves to damp the movement of the needle, reducing oscillation time and increasing stability However, tritium has a of only about 12 years, so a compass that contains 120 mCi of tritium when new will contain only 60 when it is 12 years old, 30 when it is 24 years old, and so on
Limitations of the magnetic compass A close up photo of a geological compass The magnetic compass is very reliable at moderate latitudes, but in geographic regions near the Earth's magnetic poles it becomes unusable. A magnetic card compass is usually equipped with an optical, lensatic, or prismatic sight, which allows the user to read the bearing or azimuth off the compass card while simultaneously aligning the compass with the objective see photo. A compass is an instrument used for and orientation that shows direction relative to the geographic or points. The organised structure of the Kompass directory means you can better segment your target markets and create precise and more effective marketing strategies. In this way, correction tables could be created, which would be consulted when compasses were used when traveling in those locations. Any electrically conductive body produces its own magnetic field when it is carrying an electric current. For a table of the thirty-two points, see.