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Q. Single-axis autopilot control system of an aircraft?
Figure (a) shows the block diagram of a simplified single-axis (pitch, yaw, or roll) autopilot control systemwith digital data. The objective of the control is tomake the position of the airframe follow the command signal. The rate loop included here helps to improve system stability. Figure (b) illustrates a digital autopilot control system in which the position and rate information are obtained by digital transducers. Sample-and-hold devices are shown on the block diagram.
While a sampler essentially samples an analog signal at some uniform sampling period, the hold device simply holds the value of the signal until the next sample comes along. Two samplers with two different sampling periods (T1 and T2) are shown in Figure(b), which is known as a multirate sampled-data system. If the rate of variation of the signal in one loop is relatively much less than that of the other loop, the sampling period of the sampler employed in the slower loop can be larger. With sampling and multirate sampling, some of the expensive components of the system can be utilized on a time-sharing basis.
Carry Fla Registers The size of the accumulator is of 8 bit if after any arithmetical or logical operation 9 th bit is generated i e there is carry beyond D 7 bi
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DC chopper This is one stage conversion device which is used for direct conversion of fixed de voltage at a level to an adjustable dc voltage at another level.
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Explain in detail the operation of 8255 in mode1 taking suitable example. In mode1, Ports A and B are programmed as input or output ports and Port C is used for handshaking.
Q. Consider the circuit of Figure with V S = 94 V, V Z = 12 V, R = 820 , R L = 220 , R S = 0, and R Z = 25 . Assume the reverse saturation current of the zener diode to be
i was told that silicone rubber will stop electricity, but i need more info like how thick and any more info you can share
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