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A LVDT is a displacement sensor, which is commonly used in mechatronic systems. Consider a digital control loop that uses an LVDT measurement for position control of a machine. Typically, the LVDT is energized by a dc power supply. An oscillator provides an excitation signal in the kilohertz range to the primary windings of the LVDT. The secondary winding segments are connected in series opposition. An ac amplifier, demodulator, low-pass filter, amplifier, and ADC are used in the monitoring path. Figure P4.19 shows the various hardware components in the control loop. Indicate the functions of these components.
Figure P4.19
At the null position of the LVDT stroke, there was a residual voltage. A compensating resistor was used to eliminate this voltage. Indicate the connections for this compensating resistor.
it is highly desirable to make benzene from ethane from shale gas in a continious vapor-phase reaction3c2h6 --gt c6h6
1.Discuss whether you think OSHA's air contaminant standards are important, and why. Do you think they are adequate to protect employees in the workplace from airborne contaminant hazards? Explain.
1. Plot the quantities calculated in parts (a) through (c) of Problem 10.43 versus the compressor pressure ratio ranging from 3 to 6. Repeat for compressor and turbine isentropic efficiencies of 90%, 85%, and 80%.
in the casting of steel under certain mold conditions the mold constant in chvorinovs rule is know to be 4.0 mincm2
Describe in detail the use of microfluidics in one Agilent analyzer. Discuss the types of determinations possible and the advantages and limitations of lab-on-a-chip technology as applied to the analyzer chosen.
carbon monoxide and water vapor h2o are placed in a reaction vessel at 1000 k and 2.0 bars in a one two one molar
Derive an equation that relates the measured potential of the cell in (b) to pAsO4 (assume that the junction potential is zero).
a three-blade helicopter blade rotates at 200 rpm. if each blade is 12 ft long and 1.5 ft wide estimate the torque
1 the critical crack length for a through crack in a thick plate of 7150-t651 aluminum alloy that is in uniaxial
Express the position of point P in terms of the input angle.
A vibrating body is supported by six isolators each having stiffness 32000N/m and six dashpots having damping factor as 400 N-s/m. The vibrating body is to be isolated by a rotating device having an amplitude of 0.06 mm at 600 rpm. Take m = 30 kg...
One cubic meter of argon initially at 300 K is compressed such that the change in the specific enthalpy is -0.27 kJ/kg-K and the temperature is reduced 100 K. Determine the final volume of the argon. (k = 1.67)
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