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Question 3982

posted 1 years ago

Introduction
- Provide a concise description of the project.
- State any modifications added to the original project description, and clearly explain why.
System Architecture and Mathematical Representation Description
- Provide a description of the (high-level) system architecture/structure, including system level block diagrams, and mathematical representation.
System Simulation Description
- State all the modifications that you have added to the system structure since the abstract submissionand clearly explain why.
- Provide a concise description of all the software modules that have already been implemented. Alsobriefly mention any major simulation problems that you have encountered and how you will go (or havegone) about to solving them.
Obtained and Expected Results
- Analyze and comment on the currently obtained and/or expected results. Consider both the functionaland performance requirements of the system.- For the results currently obtained, comment on whether any further improvements are necessary.
- For the results currently obtained, comment on whether any further improvements are necessary.
Conclusion and Future Work
- Explain what needs to be done next to complete the project before the due date, and provide a timeline for your plan.

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Question 9754

posted 1 years ago

7.) A small permanent magnet motor has a torque constant kr=0.1 Nm/A and a back e.m.f.constant ke-2.50 V/krpm. The total internal resistance is R=15 2. Determine the torque for maximum power and the maximum rotational speed if the applied voltage is V=5V. (25pts)

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Question 5337

posted 1 years ago

5.) A force of 500 N is required to open a process control valve. What area of diaphragm will be needed with a diaphragm actuator to open the valve with a control gauge pressure of 70 kPa? (20 pts)

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Question 5334

posted 1 years ago

2.) Consider a Pt resistance sensor that requires long leads to operate. To compensate for the
show that the Wheatstone bridge cancels the effects of temperature on the long leads. In other words,
changes in the resistance of long leads, the sensor can be connected to a Wheatstone bridge (as R1, see picture) using long leads (1,2,3) of same dimensions and material. They will all be subject to the same change in resistance (AR) due to temperature. If we consider lead #1 in series with R3 and lead #3 in series with R1, for R1 = R3 (and hence R2 = R4),starting from the general Wheatstone bridge output expression:
\mathbf{V}_{\bullet}=\mathbf{V}_{\mathbf{A B}}-\mathbf{V}_{\mathbf{A D}}=\mathbf{V}_{\mathbf{2}}\left(\frac{\mathbf{R}_{\mathbf{1}}}{\mathbf{R}_{\mathbf{1}}+\mathbf{R}_{\mathbf{2}}}-\frac{\mathbf{R}_{\mathbf{3}}}{\mathbf{R}_{\mathbf{3}}+\mathbf{R}_{\mathbf{4}}}\right)
show that V. = 0 when temperature varies and affects the resistance of the long leads.

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Question 5333

posted 1 years ago

1.) A platinum resistance temperature sensor has a resistance of 120 N at 0°C and forms one arm of a Wheatstone bridge. At this temperature the bridge is balanced with each of the other arms being 120 N. The temperature coefficient of resistance of the platinum is 0.0039 /K. What will be the output voltage from the bridge for a change in temperature of 20°C ? The loading across the output is effectively open-circuit and the supply voltage to the bridge is from a source of 6.0 V with negligible internal resistance. (Answer is. 0.117 V, but you need to show the work) (20 pts)

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Question 5336

posted 1 years ago

4.) A Wheatstone bridge has a single strain gauge in one arm and the other arms are resistors with each having the same resistance as the un strained gauge. Show that the output voltage from the bridge is given by 1/4 VsGɛ, where Vs is the supply voltage to the bridge, G the gauge factor of the strain gauge and ɛ the strain acting on it. (20 pts)

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Question 5339

posted 1 years ago

7.) A small permanent magnet motor has a torque constant kT=0.1 Nm/A and a back e.m.f.constant ke-2.50 V/krpm. The total internal resistance is R=15 Q. Determine the torque for maximum power and the maximum rotational speed if the applied voltage is V=5V. (25 pts)

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Question 5335

posted 1 years ago

3.) A diaphragm pressure gauge employs four strain gauges to monitor the displacement of the diaphragm. The four active gauges form the arms of a Wheatstone bridge, in the way shown in Fig. 3.23 b (see class notes too). The gauges have a gauge factor of 2.1 and resistance 120 Q. A differential pressure applied to the diaphragm results in two of the gauges on one side of the diaphragm being subject to a tensile strain of 1.0 x 10^-5 and the two on the other side a compressive strain of 1.0 x 10^-5 . The supply voltage for the bridge is 10 V. What will be the voltage output from the bridge? (20 pts) (Answer is 0.21 mV, but you need to show the work to get to this.)

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Question 5338

posted 1 years ago

6.) A pneumatic system is operated at a pressure of 1000 kPa. What diameter cylinder will be required to move a load requiring a force of 17 kN? (20 pts)

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Question 11396

posted 1 years ago

For the circuit diagram below, perform a complete circuit analysis to solvefor vo(t) if V,(t) = 3 sin(10t). Let ve(t)lt=o = 0 V and dvc/dt|t-0 = 0 V/sbe the initial conditions. Assume the characteristic equation has distinct,complex roots. Recommendation: due to the initial conditions being givenin it, solve the differential equation in vc. Also, consider which, if any, ofyour results from Exercise 02.5 apply and re-use them, if so.

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