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An eCompass or e-Compass is a tilt compensated electronic compass utilizing an accelerometer and a magnetometer. A number of manufacturers, including Motorola, AKM Semiconductor, NXP, Bosch Sensortec, and ST micro make eCompasses. eCompasses are also found in some laptops such as the HP Spectre. Today's smartphones often include an eCompass ...
Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.
A modern military compass, with included sight device for aligning. A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north.
A navigator on watch does not always have a corrected compass available with which to give an accurate bearing. If available, the bearing might not be numerate. Therefore, every forty-five degrees of direction from north on the compass was divided into four 'points'. Thus, 32 points of 11.25° each makes a circle of 360°.
The navigation message contains corrections for these errors and estimates of the accuracy of the atomic clock. However, they are based on observations and may not indicate the clock's current state. These problems tend to be very small, but may add up to a few meters (tens of feet) of inaccuracy. [7]
OK aircraft "Wiskey" compass is a criticale navigation device. WHY is this catagory of the general compass NOT listeed? One lightenig bolt cam shut down all modern aviation electrical system. That little compass can get the Wide-body airliners get to an emergency landing field. The technology of these devices seems to an issue.
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A beam compass and a regular compass Using a compass A compass with an extension accessory for larger circles A bow compass capable of drawing the smallest possible circles. A compass, also commonly known as a pair of compasses, is a technical drawing instrument that can be used for inscribing circles or arcs.