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Suppose that a feedback control system (Figure P6.45) is expected to provide an accuracy within ±Δy for a response variable y. Explain why the sensor that measures y should have a resolution of ±(Δy/2) or better for this accuracy to be possible. An x-y table has a travel of 2 m. The feedback control system is expected to provide an accuracy of ±1 mm. An optical encoder is used to measure the position for feedback
in each direction (x and y). What is the minimum bit size that is required for each encoder output buffer? If the motion sensor used is an absolute encoder, how many tracks and how many sectors should be present on the encoder disk?
H2O at 520 degrees celsius, 12 MPa(abs) enters a control volume operating at steady state with a volume flow rate of 40 m^3/min, 22% of the entering mass flow exits at 220 degrees celsius, 1 MPa(abs), with a velocity of 20m/s.
two kilograms of air within a piston-cylinder assembly execute an ideal carnot power cycle within maximum and minimum
in a refrigerator cycle low saturated liquid enters an evaporator and exits as saturated vapor. the saturated vapor is
a steam power plant utilizing the rankine cycle has the following particulars- steam pressure and temperature at inlet
Determine the maximum tensile stress σt(due to pure bending about a horizontal axis through C by positive bending moments M) for beams having cross sections as follows (see figure).
helium gas in an ideal otto cycle is compressed from 12c and 2l to 0.25l and its temperature increases by an additional
A counter-flow double pipe heat exchanger is heat water from 20 degrees Celsius to 80 degrees Celsius at the rate of 1.2 kg/s. The heating is to be accomplished by geothermal water available at 160 degrees Celsius at a mass flow rate of 2 kg/s.
A 30 ft tape weighing 3 lb and with a cross sectional area of 0.01 in2 was standardized and found to be 30.02 ft at 680F, with 20 lb tension and fully supported . This tape was used to measure a total distance of about 80 ft. The first 60 ft has a ..
a piston of diameter 100 mm moves inside a cylinder of 100.1 mm diameter. find the percent decrease in force necessary
how do you mathematically calculate the number of years it takes to pay off loan in one equation if yearly income is
Name two purposes and advantages of jigs and fixtures that are used as work holding devices
Surface defects may arise at the boundary between two grains, or small crystals, within a larger crystal. The rows of atoms in two different grains may run in slightly different directions, leading to a mismatch across the grain boundary.
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