Data logging

Data logging

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  Viviana Velenthia Micheal D201010XXXXX Dayang Sufinah Binti Datu Teng D201010XXXXX Darvina Lim Choo Kheng D201010XXXXX
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  Introduction • A datalogger (also datalogger or data recorder) is an electronic device that records data over time or in relation to location either with a built in instrument or sensor or via external instruments and sensors. Increasingly, but not entirely, they are based on a digital processor (or computer). They generally are small, battery powered, portable, and equipped with a microprocessor, internal memory for data storage, and sensors.
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  Which is faster?
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  “Does the inclinedtrack with a certain angle affect the acceleration and velocity of a moving object?”
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  Carrying out theexperiment Title : Acceleration-Cart on an inclined track with different angle Objective • Investigate how acceleration of object depends on the angle of the inclined tract by using the motion sensor • Determine the angle of the inclined track for each different height, h • Use the software to plot the graph of position, velocity, and acceleration versus time for each trial.
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  Equipment and apparatus Computerwith USB port PASPORT motion sensor PASPORT USB interface Data Studio software
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  Equipment and apparatus Track Retort stand and clamp Cart Ruler
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  Set-up of equipmentand apparatus
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  Procedure Computer setup • ThePASPORT USB interface is plugged into the computer’s USB port. • The motion sensor is plugged in into the USB interface. The PASPortal window is automatically launched. • Appropriate DataStudio configuration is chosen.
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  Equipment setup • Theequipment is set up as shown in figure. • The height of the point of release of the cart from table surface is measured. Different heights (8cm, 12cm and 16cm) are used in this experiment. The length of the track is also measured to obtain the inclined angle. Length of track, l Height, h
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  • The motionsensor is placed at the raised end of the track so it can measure the motion of the cart as it moves down the inclined track. At the top of the motion sensor, the icon ‘Cart’ is selected. • Cart is hold at the mark “15cm” of the track. When it is released, the data is recorded. The experiment is repeated by changing the height to 12cm and 16 cm to obtain 3 sets of data.
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  Record Data • Thebutton Start is clicked and the cart is released so that it moves down the track. • The button Stop is clicked before the cart hits the end stop of the track.
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  Analyze data Velocity graph •The smooth part of the velocity is highlighted. Then, linear fit is selected from the fit menu. The slope (the value of m) for the cart is then recorded. Acceleration graph • The flat part of the acceleration is highlighted. Then, linear fit is selected from the fit menu. The slope (the value of m) for the cart is then recorded. • The value for the slope of the velocity to the mean of acceleration is compared.
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  Result/Data 85cm 85cm 85cm Length of track, h 8cm 12cm 16cm Height, y 5.4° 8.1° 10.8° Angle of inclined track, θ 0.6m/s2 1.0m/s2 1.2m/s2 Acceleration (slope = 0) Velocity 0.43m/s2 0.80m/s2 1.17m/s2 Slope of graph, (m) Acceleration 0.0m/s3 0.0m/s3 0.0m/s3
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  Graph Angle: 5.4
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  Graph Angle: 8.1
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  Angle: 10.8 Graph
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  Questions: • Describe thesituation where an object slide down at different inclined angle and the forces that involved in it. • What are the forces that acting upon an accelerating object on inclined track and draw a diagram to show the forces, plus state how the acceleration is formed? • From the result, describe how the acceleration is affected by different inclined angles? • What are the constant variables in this experiment? • What precaution/ precautions you took when doing this experiment?
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  Experiment’s conclusion Component Component parallel to the perpendicular to the plane, mg sin θ plane, mg cos θ As the θ increase, -mg sin θ increase -mg cos θ decrease. -Acceleration and velocity increase.
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  Why the waterflow faster at the upstream compared to the water flow at the downstream ?
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  The position, velocity Three different graphs can be and acceleration of plotted at the same time the cart can be determined and measured accurately Less work needs to be done by using the motion the students sensor. The changes of the data and graph can be observed immediately, Discussion allowing students to make any can be take changes or detect and overcome part after the any errors in the experiment. experiment without wasting more The experiment can be repeated time many times to obtained the accurate readings
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  Conclusion Each of theseexperiments was very quick and easy to set up. Using the simplest mode of operation of the software means that almost no knowledge or experience of data logging is required.