Which compensates for errors introduced when the vessel heels over().
A、The soft iron spheres on the arms of the binnacle
B、Magnets placed in trays inside the binnacle
C、A single vertical magnet beneath the compass
D、The Flinders bar
A、The soft iron spheres on the arms of the binnacle
B、Magnets placed in trays inside the binnacle
C、A single vertical magnet beneath the compass
D、The Flinders bar
A、It compensates for the error caused by the vertical component of the Earth's magnetic field B、It compensates for error caused by the heeling of a vessel C、It compensates for quadrantal deviation D、It is only needed in equatorial waters
A、PIN photodiodes B、zero-chirped lasers C、Erbium-doped fiber amplifiers D、dispersion compensating fiber E、dispersion compensating Bragg grating
A、 PIN photodiodes B、 zero-chirped lasers C、 Erbium-doped fiber amplifiers D、 dispersion compensating fiber E、 dispersion compensating Bragg grating