A capacitive displacement sensor is used to measure rotating shaft wobble, as shown in Figure Q2a.
A capacitive displacement sensor is used to measure rotating shaft wobble, as shown in Figure Q2a. The capacity is 880pF with no wobble. Find the change in capacity for a ±1% shaft wobble.
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A capacitive displacement sensor is used to measure rotating shaft wobble, as shown in Figure Q2a.
Displacement h The attached Figure shows a capacitive-displacement sensor designed to monitor small changes in work-piece...
Displacement h The attached Figure shows a capacitive-displacement sensor designed to monitor small changes in work-piece position. The two metal cylinders are separated by a plastic sheath/bearing of thickness 1 mm and dielectric constant at 1 kHz of 2.5. If the radius is 3 cm, find the sensitivity in pF/m as the upper cylinder slides in and out of the lower cylinder. (€=8.854188 x 10-12 F/m; c= FOE7A,
A resistive temperature sensor Rv (calibration curve shown below) is used to measure the temperature of...
A resistive temperature sensor Rv (calibration curve shown below) is used to measure the temperature of a process using Wheatstone bridge (Fig. 1). When the bridge is balanced, EO = OV. Then the Ry is inserted into a process whose temperature is 100C. Assume Ei = 10V, R1 = R2 = R3 = 4k12. 1. At which temperature the bridge is balanced? How much is EO at balanced mode? 2. Find the bridge output voltage E, a 3-significant figure voltmeter...
4) A paddle wheel flow sensor that uses hall-effect sensors is used to measure the flow of a flui...
4) A paddle wheel flow sensor that uses hall-effect sensors is used to measure the flow of a fluid and shown in Figure 3. The CPR of the hall-effect sensor is 16 however the maximum flow rate resolution should be 512 pulses. The maximum rate of flow relates to 4 rounds per second of the paddle wheel. The output from the hall-effect sensor is a 5O% square wave -sv to +SV. Develop a design (mechanical and electrical) that provides a...
A vibration sensor is used to measure the vibrations caused by a car engine. It is...
A vibration sensor is used to measure the vibrations caused by a car engine. It is mounted into a Wheatstone bridge as shown in Figure 3. The vibration sensor has a reference resistance of 100 12 and has a resistance versus amplitude sensitivity of 0.1 2/(P-P amplitude). (P-P stands for peak to peak). The designer chose to use R4 as the vibration sensor and used 100 12 resistors for R1, R2 and R3. The input voltage (Vi) was chosen to...
Question 3. A crank shaft mechanism is shown in Figure 3. Link B is rotating with...
Question 3. A crank shaft mechanism is shown in Figure 3. Link B is rotating with a constant angular velocity wgåg in the fixed reference frame A as shown in the figure. For this mechanism: (a) Using the vector kinematic equations and methods taught in this [20 marks) module, obtain the expressions for velocity and acceleration of point in the fixed frame A, in terms of wb.lg, lc, and e. Link C lo 1B Link B az в/ A 0...
The rotating shaft shown in the figure is machined from AISI 1020 CD steel. It is subjected to a force of F=6 kN.
Problem 4: The rotating shaft shown in the figure is machined from AISI 1020 CD steel. It is subjected to a force of F=6 kN. Find the maximum factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. All dimensions are in mm.
Oestion-2 The rotating shaft shown in the figure is machined from S- 570Mpa. It is subjected...
Oestion-2 The rotating shaft shown in the figure is machined from S- 570Mpa. It is subjected to a fluctuating load varyýing om Note all length dimensions are in mm) Find the reactions (Ri and Ra) at ure is machined from AISI 1020 CD steel with S670Mpa und varying from 0 to 7000N a) shaft (at 180mm from left). upports and maximum bending moment Miman at most critical point on and b) Find the alternating g amplitude (σ.), midrange (σ )...
The rotating shaft shown below is supported by self aligning bearings at A and D. The diameter of...
The rotating shaft shown below is supported by self aligning bearings at A and D. The diameter of the shaft changes from D-1.5" to d-1.0" at the midpoint of the shaft. The radius of the fillet at the diameter change is r-0.2" and all surfaces are machined. The shaft is made of normalized 1020 steel having . 64.0 ksi and S, = 50.3 ksi . The shaft is loaded with 250-lb forces at B and C as shown to create...
6-16 The rotating shaft shown in the figure is máchined from AISI 1020 CD steel. It...
6-16 The rotating shaft shown in the figure is máchined from AISI 1020 CD steel. It is subjected o a force of F = 6 kN. Find the minimum factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. 500 25 D 35 D 50 D 3 R Problem 6-16 mensions in millimeters 25 D. 20 20 20 20 280
As shown in the figure below, two masses are attached on a rotating shaft. mi 15...
As shown in the figure below, two masses are attached on a rotating shaft. mi 15 kg @60 at a 15-cm radius, and m2 20 kg @270° at a 12-cm radius. Determine the magnitudes and angles of the balance masses needed to dynamically balance the system. The two balance masses are placed in planes A and B, respectively, and with 12-cm radius. m1 mi 15cm 20cm |25cm m2 m2
Displacement h The attached Figure shows a capacitive-displacement sensor designed to monitor small changes in work-piece position. The two metal cylinders are separated by a plastic sheath/bearing of thickness 1 mm and dielectric constant at 1 kHz of 2.5. If the radius is 3 cm, find the sensitivity in pF/m as the upper cylinder slides in and out of the lower cylinder. (€=8.854188 x 10-12 F/m; c= FOE7A,
A resistive temperature sensor Rv (calibration curve shown below) is used to measure the temperature of a process using Wheatstone bridge (Fig. 1). When the bridge is balanced, EO = OV. Then the Ry is inserted into a process whose temperature is 100C. Assume Ei = 10V, R1 = R2 = R3 = 4k12. 1. At which temperature the bridge is balanced? How much is EO at balanced mode? 2. Find the bridge output voltage E, a 3-significant figure voltmeter...
4) A paddle wheel flow sensor that uses hall-effect sensors is used to measure the flow of a fluid and shown in Figure 3. The CPR of the hall-effect sensor is 16 however the maximum flow rate resolution should be 512 pulses. The maximum rate of flow relates to 4 rounds per second of the paddle wheel. The output from the hall-effect sensor is a 5O% square wave -sv to +SV. Develop a design (mechanical and electrical) that provides a...
A vibration sensor is used to measure the vibrations caused by a car engine. It is mounted into a Wheatstone bridge as shown in Figure 3. The vibration sensor has a reference resistance of 100 12 and has a resistance versus amplitude sensitivity of 0.1 2/(P-P amplitude). (P-P stands for peak to peak). The designer chose to use R4 as the vibration sensor and used 100 12 resistors for R1, R2 and R3. The input voltage (Vi) was chosen to...
Question 3. A crank shaft mechanism is shown in Figure 3. Link B is rotating with a constant angular velocity wgåg in the fixed reference frame A as shown in the figure. For this mechanism: (a) Using the vector kinematic equations and methods taught in this [20 marks) module, obtain the expressions for velocity and acceleration of point in the fixed frame A, in terms of wb.lg, lc, and e. Link C lo 1B Link B az в/ A 0...
Oestion-2 The rotating shaft shown in the figure is machined from S- 570Mpa. It is subjected to a fluctuating load varyýing om Note all length dimensions are in mm) Find the reactions (Ri and Ra) at ure is machined from AISI 1020 CD steel with S670Mpa und varying from 0 to 7000N a) shaft (at 180mm from left). upports and maximum bending moment Miman at most critical point on and b) Find the alternating g amplitude (σ.), midrange (σ )...
The rotating shaft shown below is supported by self aligning bearings at A and D. The diameter of the shaft changes from D-1.5" to d-1.0" at the midpoint of the shaft. The radius of the fillet at the diameter change is r-0.2" and all surfaces are machined. The shaft is made of normalized 1020 steel having . 64.0 ksi and S, = 50.3 ksi . The shaft is loaded with 250-lb forces at B and C as shown to create...
6-16 The rotating shaft shown in the figure is máchined from AISI 1020 CD steel. It is subjected o a force of F = 6 kN. Find the minimum factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. 500 25 D 35 D 50 D 3 R Problem 6-16 mensions in millimeters 25 D. 20 20 20 20 280
As shown in the figure below, two masses are attached on a rotating shaft. mi 15 kg @60 at a 15-cm radius, and m2 20 kg @270° at a 12-cm radius. Determine the magnitudes and angles of the balance masses needed to dynamically balance the system. The two balance masses are placed in planes A and B, respectively, and with 12-cm radius. m1 mi 15cm 20cm |25cm m2 m2
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