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The objective of this lab is to design a fuzzy logic motor controller. The desired speed is received from a user interface (either a keypad or the SCI). You should use a variable-speed DC motor, playing careful attention to the voltage and current specifications of the motor. Attach onto the motor shaft a circular disk, and paint contrast lines in a circular pattern around the disk. Mount a reflectance optical sensor, such as the QRB1113 or QRB1134, pointing toward the disk, and interface it so that there is a digital square wave with a frequency related to the speed of the shaft. Build the state estimator that measures both shaft speed and acceleration in real time. Measure the current required to spin the motor at full speed. Design a PWM actuator so the software can control the delivered power to the motor. It is OK if the actuator precision is greater than the 8-bit fuzzy logic numbers. Make sure the snubber diode can handle the back EMF generated when the motor is switched off. Use the PWM in open-loop fashion and the state estimator to generate a DC response curve like that shown in Figure 13.24. Furthermore, you should measure the time-constant of the physical plant (time to 0.69 of final response after a step change in input). Design and implement an initial fuzzy logic controller and add debugging instruments to measure fuzzy variables in real time. Run through an experimental fine-tuning, optimizing the fuzzy parameters in order to minimize both controller error and response time.
Figure 13.24
The Fourier transforms of odd and even functions are very important. The reason is that they are computationally simpler than the Fourier transform. Let x(t) = e-ItI and y(t) = e-tu(t) - etu(-t). a. Plot x(t) and y(t), and determine whether they ar..
How would you develop a looping program in MIPS that will take a series of decimal numbers and arrange them in ascending order from smallest to largest. The sequence of nine numbers are: 5, 3, 8, 9, 2, 4, 1, 7, 6, 3, 8
What kind of transistor has higher voltage gain, BJT or FET and why What kind of transistor has better noise response BJT or FET and why How about frequency response high frequency, FET or BJT Low frequency response, FET or BJT
A half-wavelength antenna is made of copper wire with conductivity a = 5.7 x 107 Sim. The antenna is 3-mm thick and 1.5-m long. Calculate the impedance of the antenna and its efficiency when radiating in free space.
Project to develop a controller for a new satellite.
The signal x(t) = 20*sinc2(400t) is input to a ring moodulator. Sketch the spectrum of vout and find the range of values of fc that can be used to transmit this signal.
I have an algorithm need to be simulated in ns2/ns3, the algorithm is based on vehicular ad hoc network. The objective of the algorithm is predict the next AP availability and capacity in VANET scenario.
Find the sketch the convolution of the given pairs of functions. You can use either the integration or the graphical method for convolution. x(t) = 2e-3t sin(2t) u(t) h(t) = u(t) + 4d(t-2) find y(t) = x(t) * h(t)
make a RAM memory using a 2-D array of integers. This RAM will have 8 locations, each 64 bits wide. Both should be changeable and controlled by generics. This memory will be connected to a FIFO controller which I have already coded.
A full wave rectified current has a peak value of 20 A and a period of 2ms. Assume the current is flowing in a 50 ohm resistance. Tabulate frequency, peak values and average powers of the first four nonzero compoents in the spectrum.
Design an 8085 microprocessor system that has a total of 4Kx8 EPROM space using a single 4Kx8 chip and a total of 4Kx8 RAM using two 2Kx8 chips. The EPROM should be mapped starting at address 0000 hex
The magnetic circuit of Problem 1.1 has a nonlinear core material whose permeability as a function of Bm is given by where Bm is the material flux density.
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