Reference no: EM132593665
ENGR132 Transforming Ideas to Innovation II - American University of the Middle East
Question 1 Fill out the table attached for the 2D drawing shown below.
(a) Relative form (3rd column)
(b) Polar form (4th column)
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Absolute X,Y
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Relative @?X,
?Y
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Polar @?R<q
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Point A
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1 , 1
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From A To Point B
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1 , 3
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@0 , 2
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@2<90
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From B To Point C
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From C To Point D
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From D To Point E
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From E To Point F
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From F To Point G
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From G To Point H
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From H To Point I
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Question 2
As an engineer, you have been asked to design a digital thermometer. The designed digital thermometer should operate in a wide temperature range, specifically in the range from -20 °C to 130°C for the ambient temperature. The supply voltage for the system should be between 8 to 11 V. The temperature sensors should have analog output which will be fed into the microcontroller. The accuracy of the temperature sensors should be better than +- %. The unit price of the sensors used for the system should not exceed 10 KWD. The height x width x depth dimensions should not be more than 240 x 122 x 62 mm. Finally, the Scan frequency should be at least 12.5 measurements/s
a) Analyze the given data sheet (Tab.1) and determine all the sensors that can be used, if any. If there are multiple sensors suitable, then choose only one and explain your choice. If such a sensor is not available in Tab.1, then you write the features of the sensor you are looking for in the last row (T-sensor X).
Tab. 1 Temperature sensors datasheet
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Temperature Sensor
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Dimension in mm
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Scan freq.
Meas./sec
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Temperature range (°C)
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Sensor Accuracy (+/- C)
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Supply Voltage (V)
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Unit Price sensor
( KWD)
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T-Sensor 1
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230 x 120 x 60
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12
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0 °C to 80°C
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1.5%
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12
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25
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T-Sensor 2
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204 x 120 x 60
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12
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-45 °C to 130°C
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0.4%
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9
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7.5
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T-Sensor 3
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214 x 100 x 40
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16
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-35 °C to 150°C
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0.1%
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8.5
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5
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T-Sensor 4
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250 x 130 x 60
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13
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-5 °C to 150°C
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0.45%
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6
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7
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T-Sensor 5
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224 x 120 x 60
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14
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-45 °C to 185°C
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0.55%
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10
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20
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T-Sensor 6
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220 x 100 x 50
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9
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-10 °C to 125°C
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0.1%
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8
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3
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T-Sensor X
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b) Temperature is one of the most commonly measured physical parameters. Give two examples of real-life applications where keeping track of the temperature is important.
Question 3: The total area of the following figure is equal to 50 , taking exactly.
(a) Calculate distance X. Show your work.
(b) Calculate the perimeter of the figure. Show the details of your work.
Question 4 You have the following devices: Thermocouple, RTD, Servo motor, DC Motor, Resistors, LED, Arduino, ADC and DAC, and potentiometer.
a) Determine 3 different projects that you can realize using all of the devices/sensors listed above. Explain and Justify.
b) Choose one of the three projects you stated in (a).
i. Draw the connectivity (high level diagram) of your preferred project. Clearly show how the devices are connected to each other in your high- level drawing. Explain the details.
ii. Which ones are input devices, output devices, analog devices, and digital devices? Explain each device's functionality and explain how each device works.
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