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1. What are the differences between polling and interrupt based processing? Which method is more suitable in digital controller design.
2. Explain why an A/D converter may be required in digital control systems.
3. Explain the operation of an LVDT sensor. You are required to design a motor position control system. Explain what type of position transducer you would use in your design.
4. You are required to measure the flow rate of water entering into a tank. Explain what type of sensor you can use.
The following test data were taken on a 110-KVA, 4400/440- volt, 60-Hz transformer: Short Circuit Test: P= 2000w, I = 200 amp, V = 18v Open Circuit Test: P=1200w, I= 2 amp, V = 4400v Calculate the voltage regulation of this transformer when it suppli..
The output/ input of a system is 30dB. detrmine the ratio Express x(t)=4*cos(100*t-45)+ 2*cos(250*t+30) in terms of exponential functions Then Detrmine the phase angles(in degrees) of the two frequency components of x(t).
The voltages at opposite ends of a 470Ω, ±5% resistor are measured as V1 = 12V and V2 = 5V. The measuring accuracy are ±0.5V for V1 and ±2% for V2. Calculate the current in the resistor and specify its accuracy.
Write a program to blink the last 3 digits of your social security number on 3 bits of Port B. For example if the last 3 digits are 654 then bit 2 of Port B should blink 6 times, bit 1 should blink 5 times and bit zero 4 times.
Find values of the intrinsic carrier concentration ni for silicon at -70, 0, 20, 100, and 125 °C. At each temperature, what fraction of the atoms is ionized. Recall that a silicon crystal has approximately 5×1022 atoms/cm3.
A second order instrument is required to measure the input signals up to 100Mz with an amplitude inaccuracy of less than 1%. Calculate the natural frequency requirements, if the damping ratios are 0.3 and 0.6 respectively. Determine the phase shif..
Using the devices above, please construct the 555circuit. use circuit-building software you want andmeasure and record the frequency and the duty cylcle of theoutput. Also, include the picture of the constructed circuit.
Two magnetically-coupled coils are wrapped around a mutualnon-magnetic material. The coefficient of coupling betweenthe coils is 0.388. L1 has 500 turns and a value of 23.75mH while L2 has700 turns and a value of13.70mH.
A boost converter is to be employed as part of a power factor correction circuit. The input is 220 v rms 60 Hz single phase and the output is 400 V dc. It is to supply a dc load drawing 10 A.
A) the current decreases by a factor of 1000 in .2s B) the time required for the current drop to half of its intial value is .1s less than the time required for it to drop one-quarter of its intial value.
These days, plastic surgery has turned out to be more well known for current individuals. A few individuals trust that it is a science to expand the magnificence of a man. The essential point of this surgery is to improve the presence of the person t..
A system is required that represents 0 to 100 volts in a 10 bit code. What is the voltage increment that is represented by the LSB of this code.
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