Pelorus
its getting to ship , wiring of the line of tube
A gyro compass is a type of non-magnetic compass that uses a gyroscope to find true north, rather than magnetic north. It operates on the principles of angular momentum and gyroscopic inertia, allowing it to maintain a stable reference to the Earth's rotation. Gyro compasses are commonly used in marine navigation, aviation, and by ships and submarines, as they are unaffected by magnetic fields and provide accurate heading information. Unlike traditional magnetic compasses, gyro compasses require electrical power and can take some time to stabilize after being powered on.
A gyro compass offers several advantages, including its ability to maintain true north regardless of the Earth's magnetic field, making it more accurate in navigation. Unlike magnetic compasses, gyro compasses are unaffected by nearby magnetic interference, which enhances reliability in complex environments. Additionally, they provide stable heading information with minimal drift over time, making them suitable for use in maritime and aviation applications. Their ability to function in extreme conditions further adds to their utility in various navigational scenarios.
North-seeking gyro is a gyro with damped precession such that it will align itself parallel to the Earth's spin axis.SPT North-seeking GyroTracer incorporates the very latest technological advances, which makes it the best gyroscopic surveying instrument for the mining and Oil & Gas industries that need to ensure repeatable fast, reliable and precise downhole survey data as well as time saving and the highest return on investment.SPT north seeking gyro is highly accurate, extremely reliable downhole directional survey and orientation tool that uses gyro compassing method to determine direction.
There are different types employed on Cameras ( very practical) surveying instruments, aircraft, some types of Cranes, and submarines. There is a circular dial with a horizontal bar or bars on the center of the scale. movements of this bar correspond to actions of the vessel or vehicle. down is up- at least on aircraft and submarine models. Up is down-there are cross hairs akin to engineering instruments and rifle sights. it is quite involved- a stabilized platform is the tilting table reference- and is rotated by a gyroscope type instrument at a high rate of speed. More than that would plunge into the High Yellow- sensitive stuff. The type used on some cameras has a regular cross-haired sight but has a gravity spirit level superimposed in the view-finder so the operator can see both before he squeezes off- these things, even non-Gyro type are Expensive. They type used on some forms of hammerhead crane must be astronomical in cost- but look at the stakes!
Elmer Ambrose Sperry was the inventor of the gyro compass and gyroscope.
For synchronising the magnetic and gyro compass elements For synchronising the magnetic and gyro compass elements
Rather than type a long answer - see the related link from Wikipedia for their entry on a gyro-compass.
A gyro compass is powered by electricity, typically from the ship's electrical system. The gyro compass relies on the principle of a continuously spinning gyroscope to maintain its orientation and provide accurate heading information.
When a force is applied to a gyro compass, it will try to maintain its alignment in space and resist external influences due to its gyroscopic properties. The gyro will precess in response to the force, causing the compass card to tilt or rotate. Ultimately, the gyro compass will seek to stabilize itself and align with the true north once the external force is removed.
The error of a gyro compass can be determined by comparing its indicated heading with a known reference, such as a magnetic compass or celestial navigation. This involves taking readings from both instruments under stable conditions and noting any discrepancies. Additionally, the gyro compass error can be assessed by performing calibration procedures, which may include adjusting for factors like latitude and ship's speed. Regular checks and adjustments help ensure accurate heading readings and minimize error.
A gyro compass consists of a spinning gyroscope, a compass card, and a correcting mechanism. The spinning gyroscope maintains its orientation in space and serves as the reference point for navigation. The compass card aligns with the gyro's axis to indicate the heading of the vessel. The correcting mechanism adjusts for errors due to the vessel's motion to provide accurate heading information.
Most notably, the gyro compass.
its getting to ship , wiring of the line of tube
There are 60 minutes in 1 degree.
To apply latitude and speed correction in a gyro compass, first, determine the gyro's latitude and speed of the vessel. The gyro compass typically drifts due to the Earth's rotation and the vessel's speed, so adjustments are made based on the vessel's position. For latitude corrections, apply a correction factor based on the difference between true and magnetic north, while speed corrections account for the influence of speed over ground on the gyro's performance. Regularly monitoring and adjusting these parameters ensures accurate heading information.
This error is present in a compass which is damped in tilt. A compass damped in tilt always settles east of the meridian and above the horizon in NH, and vice-versa. Its magnitude depends on the observer's latitude, Sin( error ) α Tan( latitude ) At equator, the error is nil. The error is eastward in all northernly latitudes, and vice-versa. For the purpose of damping error, a latitude rider / adjuster is provided with the gyro compass which shifts the lubber line equal to the amount of error in the appropriate direction.