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A leadscrew connected directly to a DC servomotor is the drive system for a positioning table. The leadscrew pitch = 4 mm. The optical encoder attached to the leadscrew emits 250 pulses/rev of the leadscrew. Determine
(a) the control resolution of the system, expressed in linear travel distance of the table axis,
(b) the frequency of the pulse train emitted by the optical encoder when the servomotor operates at 14 rev/s, and
(c) the travel speed of the table at the operating speed of the motor.
Calculate the density of Al in g/cm3, given that it forms an FCC crystal structure with an atomic radius of 0.143 nm (10-7 cm) and a mass of 27 g/mole. Avogadro’s number is 6.02 x 1023 atoms/mole.
a sheet of 0.001 thick bcc iron foil separates a high hydrogen content gas from a low hydrogen content gas at 725
You are asked to design a control system to turn on lights in an art gallery at night, provided that there are people inside the gallery. Explain a suitable control system, identifying the open loop and feedback functions, if any, and describing t..
It is known that a long log floats with its axis horizontal. A very short log, however, floats with its axis vertical. Determine the maximum length of a cylindrical walnut log 30 cm in diameter that will cause it to float with its axis vertical.
discuss the sequence of events in an antilock braking system such that the utilization of tireground available adhesion
a 1 hp electric motor drives a water pump. the pump volumetric flow rate is 2103 m3s at 300 k.a determine the head loss
a resistance-based thermometer is commonly used in the industry to measure temperature. when the temperature of the
methane oxygen and nitrogen flow into an insulated tank. the methane flow is 2 kgs at the 320k. the oxygen flow is 3
Compute the demands for goods 1, 2, and 3. Suppose there is a black market for good 1. For what black market prices q would the consumer buy no more than the one unit of good 1 received at price of 1 under rationing?
consider a 210mw steam power plant that operates on a simple rankine cycle. steam enters the turbine at 10mpa and 500oc
a gate with a circular cross section is held close by a lever 1 m long attached to a buoyant cylinder. the cylinder is
Determine the force P and the tension of the rope and calculate the tension in the rope when the elevator is moving upward at a constant acceleration.
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