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Time measurement has played a crucial role in the understanding of nature from the earliest times. Starting with sun, sand or water driven clocks we are able to use clocks today, based on the most precise caesium resonators. The first direct predecessor of a TDC was invented in the year 1942 by Bruno Rossi for the measurement of muon lifetimes ...
Timing mark on pulley at 6° before TDC.. A timing mark is an indicator used for setting the timing of the ignition system of an engine, typically found on the crankshaft pulley (as pictured) or the flywheel. [1]
Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...
In the V-twin configuration, the two pistons reach TDC at different times, equal to the angular displacement between the cylinders. In the flat twin configuration, two opposing pistons reach TDC simultaneously, which is also called 0° displacement - but one piston will be at TDC of the compression stroke, the other on TDC of the exhaust stroke.
TDC = Top dead centre; BDC = Bottom dead centre; IO = Inlet valve opens; IC = Inlet valve closes; EO = Exhaust valve opens; EC = Exhaust valve closes; Either valve opens before the piston head reaches top dead centre or bottom dead centre. The amount in crankshaft degrees by which the valves open before top dead centre or bottom dead centre is ...
The primary role of the TDC is to determine the gyro angle setting required to ensure that the torpedo will strike the target. Determining the gyro angle required the real-time solution of a complex trigonometric equation (see Equation 1 for a simplified example). The TDC provided a continuous solution to this equation using data updates from ...
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The TDC is a counting detector – it can be extremely fast (down to a few picosecond resolution), but its dynamic range is limited due to its inability to properly count the events when more than one ion simultaneously (i.e., within the TDC dead time) hit the detector. The outcome of limited dynamic range is that the number of ions (events ...