2. Methods


2.1 Equipment List
  • Different Cell phone Brands
    • 1 Samsung S5 (Touch Screen)
    • 1 Samsung Pocket Neo (Touch Screen)
    • 1 Nokia (Non Touch Screen)
    • 1 Sony (Touch Screen)
    • 1 iPhone 3gs (Touch Screen)
    • 1 iPhone 6+ (Touch Screen)
    • 1 XiaoMi (Touch Screen)
  • 1 Data Logger - With Voltage Probe   
  • 1 Roll of Copper Wire
  • 1 Measuring Tape
  • 1 Diode

2.2 Diagrams of experimental setup  
Screen Shot 2015-02-17 at 7.11.08 pm.png
Figure 1: Experimental setup used to find  voltage given out by phones

2.3 Procedures
  1. Set up the experiment as shown in the diagram above.

  1. Place the phone on the copper wire.
  2. Turn on the data logger and start graphing mode for 5 minutes.
  3. Take down Voltage Range.
  4. Once finished, set graphing mode for 5 minutes and carry out steps below.
  5. At 50 seconds, make a phone call to the phone.
  6. At 100 seconds, answer the call.
  7. Take down Voltage Range again.
  8. Remove phone from setup.
Perform Steps 2-9 for all 7 Phones.

2.4 Risk Assessment and Management
  1. As this experiment involves cell phones, it might overheat and catch fire. Causing us to get burnt. To prevent this, we should have breaks between the calls to prevent overheating.
  2. Some of us might drop the phones causing it to crack and shatter and therefore we might get hurt by those fragments of glass. To prevent this, we should handle the phone with caution.
  3. We might get headaches or get dizzy from overuse of electronics. To prevent this, we should take breaks from the electronics every 30 minutes for 5 min.
2.5 Data Analysis
  1. Take recorded data from voltage sensor graphing mode.
  2. Put the data into tables below.

Xiao Mi

Voltage Range Without Call
Voltage Range With Call
Try 1


Try 2


Try 3


AVERAGE



Samsung GALAXY S5

Voltage Range Without Call
Voltage Range With Call
Try 1


Try 2


Try 3


AVERAGE



Sony Xperia V

Voltage Range Without Call
Voltage Range With Call
Try 1


Try 2


Try 3


AVERAGE



Nokia

Voltage Range Without Call
Voltage Range With Call
Try 1


Try 2


Try 3


AVERAGE




iPhone 3GS

Voltage Range Without Call
Voltage Range With Call
Try 1


Try 2


Try 3


AVERAGE



Samsung GALAXY Pocket Neo

Voltage Range Without Call
Voltage Range With Call
Try 1


Try 2


Try 3


AVERAGE



iPhone 6 Plus

Voltage Range Without Call
Voltage Range With Call
Try 1


Try 2


Try 3


AVERAGE


No comments:

Post a Comment