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A 3-Phase stepping motor is to be used to drive a linear axis for a robot. The motor output shaft will be connected to a screw thread with a screw pitch of 5 mm. We want to be able to have a spatial control of at least 0.1 mm.
a) How many poles should the motor have?
b) How many pulses are needed from the controller every second to move the linear axis at a rate of 90 mm/second?
Predict how much time it would take a processor to access each memory location in a 64-bit address bus when the clock speed of the processor is 4 GHz and the memory speed is not the limiting factor
design a regulated poewr supply with these specs Output a dc voltage of 10 V Load Variation: 0.3 -10000ohms Ripple Factor: less 0.1% for 2000ohms load
The bottom of the conduction band at one end of a silicon resistor is at the same energy level as the top of the valence band at the other end. What current flows through the resistor if the resistance is 1.12 kOhms
When a color palette is used to reduce its storage requirements, what is the maximum number of rows in the LUT to keep the compressed image size (LUT + index values for each pixel) smaller than the original image size
In a circuit, there is a resister, a conductor and a capacitor connected to voltage source. R = 25 ohms, L = 20 milliH, and C = 50 microF. a) Find the total impedance of the network if the frequency is 60 Hz.
Design a bandpass filter of 'Sallen and Key' topology and having the following characteristics fo = 3.3 kHz, Q = 2.2
The simple inexpensive hydro turbo-generator (turbine mated with electric generator) that you intend to buy has a working efficiency of 60%. Answer the following (show your work).
The shaft output of a three-phase, 60 Hz induction motor is 100 HP. The friction and windage losses are 900 W, the stator core loss is 4200 W, and the stator copper loss is 2700 W. If the slip is 3.75%, what is the effïciency of the motor
A curve of radius 159 m is banked at an angle of 11°. An 810-kg car negotiates the curve at 93 km/h without skidding. Neglect the effects of air drag and rolling friction. Find the normal force exerted by the pavement on the tires.
Consider a network with a driving-impedance Z. (1) Find expression for P and Q. (2) Find p(t) in terms of P and Q. (3) Suppose that the network is a series RLC. Interpret the result in part (2).
A decorative snowman with mass m = 15kg slides down a roof that is inclined at an angle of 30 º from the horizontal. The snowman slides a distance of 6.0m down the roof and off the edge, located 8.0m above the ground.
Step-down transformer
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