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A Yanmar 2GM20 marine diesel engine, installed in a sailboat. The center pulley is the crankshaft , the lower left one the seawater pump , the upper right one the alternator . The Yanmar 2GM20 is a series of inboard marine diesel engines manufactured by the Japanese company Yanmar Co. Ltd.
Tachometer - A gauge to indicate engine speed in RPM or percentage of maximum. Manifold pressure (MP) gauge - Indicates the absolute pressure in the intake manifold . For an aircraft equipped with a constant speed propeller, this is the most direct indication of the engine's operating power.
A tachograph system comprises a sender unit mounted to the vehicle gearbox, the tachograph head and a recording medium. Tachograph heads are of either analogue or digital types. All relevant vehicles manufactured in the EU since 1 May 2006 must be fitted with digital tachograph heads. The recording medium for analogue heads are wax coated paper ...
A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. [1] The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are increasingly common.
These demands are now primarily fulfilled by the Electronic Control, the system which provides greater ability for precise measuring, data processing, operating environment flexibility and analysis to ensure efficient diesel operation. The EDC replaces the mechanical control governor with an electro-magnetic control device.
The Decca Navigator System was a hyperbolic radio navigation system that allowed ships and aircraft to determine their position by using radio signals from a dedicated system of static radio transmitters. The system used phase comparison between pairs of low frequency signals between 70 and 129 kHz, as opposed to pulse timing systems like Gee ...
A given VR-sensing system has a definite limit as to how slow the target can move and still develop a usable signal. An alternative but more expensive technology is Hall effect sensor . Hall effect sensors are true zero-rpm sensors and actively supply information even when there's no transmission motion at all.
The system concept (Figure 1) utilizes an array eight to ten GIBs (Figure 2) moored in a 2 km by 2 km array. In the case of the TARGT GIB, the GPS and RF antennas are located on top of the sensor and the hydrophone , or underwater acoustic transducer , is located on the bottom.