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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.
The covers of electrical machines are made of (A) Soft magnetic materials. (B) Hard magnetic materials. (C) Super conductors. (D) Semicond
A closed magnetic circuit of cast steel having a 6cm long path of cross-sectional area 1cm 2 and a 2 cm path of cross-sectional area 0.5 cm 2 . A coil of 200 turns is wound around
a short review article on the classification of time frame
High Voltage Distribution System or HVDS Adoption of HVDS (High Voltage Distribution System) through converting existing LVDS to HVDS reduces the technical losses appreciably.
Define Johnson Counters to Make Simpler Combinational Logic? The ring counter technique able to be efficiently utilized to implement synchronous sequential circuits. A main pr
An electromechanical voltmeter with internal resistance of 1 k and an electronic voltmeter with internal resistance of 10 M are used separately to measure the potential differenc
Q. (a) Consider the capacitor - input filter circuit of Figure and obtain the z-parameters for the circuit. (b) Determine the transfer function V 2 /V 1 when I 2 is zero.
Dielectric Heating Dielectric losses occur in insulating materials. These are same as hysteresis losses in magnetic materials. When an alternating electric field is a
what is beta?
General Purpose Registers Registers B, C ,D, E H , and L are 8 bit general purpose registers. These registers store 8 bit data temporarily for processing. Some
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