Continued... Question 3 a) For the linear potentiometer shown in the figure below, and given Vout = 1.00 V when the wipe

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Continued Question 3 A For The Linear Potentiometer Shown In The Figure Below And Given Vout 1 00 V When The Wipe 1 (98.07 KiB) Viewed 22 times

Continued... Question 3 a) For the linear potentiometer shown in the figure below, and given Vout = 1.00 V when the wiper is at maximum travel of 60 mm (end-to-end). 20 kA (MAX. Moving mechanism attached here Answer all parts below: .Draw a detailed electrical circuit of the linear potentiometer. (2 marks) 1. Draw a graph showing the relationship between the wiper position and the output voltage of the linear potentiometer. (2 marks) . Calculate wiper position in mm, when output voltage Vout = 0.55 V. (2 marks) Calculate output voltage Vout when wiper position is 30.55 mm (2 marks) The potentiometer output voltage Vout requires amplification. Sketch a potentiometer voltage amplifier circuit, and calculate the amplified voltage (Vamp) when the amplifier Gain A = 10. (3 marks) Question 3 continued on next page... Question 3 continued... b) A hall-effect sensor is used to measure the speed of a rotating disc. The rotating disc has equally spaced teeth along its perimeter as shown in the figure below. Answer all parts below: Describe how hall-effect sensor are made, how they work, and draw a graph showing the relationship between the input and output signal. (3 marks) Calculate the speed (s) of the rotating disc, given the following information: number of teeth in the disc, N = 240 . number of voltage peaks generated by the hall-effect sensor, Vp = 85 time, t - 1 sec (2 marks) Suggest and justify a type of signal processing device (2nd stage) that might be used to process the signal of the following sensor/transducer: 1.Analog Hall-effect sensor 1. Digital Hall-effect sensor w. Thermistor iv. Pressure transducer Strain gauge Potentiometer (3 marks) Question 3 continued on next page... Question 3 continued. 3 A cantilever beam is constrained at one end, and, free to oscillate at the other end. The beam was hit only once by a hammer at the free end. The beam had a displacement transducer placed near the free end. The displacement transducer produced an output voltage, V (t), given by the following equations: .V(1) - output voltage (V), A-voltage amplitude (mm). f - the frequency (Hz) From the information provided above in c) draw a detailed sketch depicting the measurement setup including the three stages of the measurement system (3 marks) Draw an amplifier circuit that could convert the displacement to velocity, and write the relationship between the input voltage and amplifier voltage. (3 marks)