How do chronometers work

In this system, all the ships clocks are electric and are connected to one main clock on the bridge. When the Master Clock on the bridge is adjusted — all the Slave Clocks in the accommodation, engine room and other spaces connected to the Master Clock are automatically adjusted.

This system is excellent as it reduces the need for adjusting each and every clock on board the ship. It also ensures that all clocks on board the ship keep the same time. Sailorinsight September 8, December 6, Navigation 0. In brief The chronometer represent a fine example of precision engineering manufactured and tested under stringent quality control methods to comply with marine The mechanical movement of the timepiece in manufactured as near to perfection as is humanly possible.

It is used for the purpose of navigation and is generally the only clock on board that displays GMT Greenwich Mean Time.

Of course, modern navigational equipment like the GPS also display accurate GMT Traditional Chronometer This Is simply an accurate clock which is compensated for changes in temperature and set in gimbals so that its working will not be disturbed by the motion of the ship. They are normally carried as close to the center of motion of the ship as possible and insulated against dampness and padded to reduce shocks.

The clock mechanism is usually enclosed in a bowl and a spring-loaded dust cover set in the base of the bowl allows access for winding. Some of the chronometers need to be wound daily, some once in a 3 day period and some once in a 7 day period. When fully wound the person winding the chronometer will encounter a butt stop which will prevent further winding. Some chronometers are fitted with a small indicating dial on the clock face which provides an indication that the instrument is fully wound.

Quartz Chronometer This Is a recent development in the marine industry. It is basically like any other quartz clock, though highly accurate, powered usually by a flashlight battery. Compared to the traditional chronometer, it is highly accurate, less expensive and easy to maintain. It does not need winding as the battery provides power for the clock to run for at least one year. Gekkos ». Chronometer, Box chronometer, after Thomas Mudge, No. The Chronometer Making the sea clock practical was critical to improving sea navigation.

Marine Chronometer. Marine chronometers are precise, specialized clocks for finding longitude at sea. They serve as portable time standards. Chronometer Movement - John Roger Arnold. Chronometer movement, made by John Roger Arnold about Arnold received an award from the Board of Longitude, on behalf of his deceased father, John Arnold, who had simplified parts of the chronometer.

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