Real Life Traffic Light Lab Report
INTENSITY OF SUNLIGHT
The Intensity of the sunlight is measured at different timings by using Lux Meter which measures the intensity of illumination. The Intensity of light is measured in Lux which is the S.I unit of measurement of intensity of illumination of a source. The results are tabulated in the Table 4 and plotted as shown in the Figure 7.
Table 4 Intensity of Sunlight
Time Intensity of Sunlight(LUX)
9.15AM 54900
11.15AM 73400
1.15AM 81000
3.15AM 64500
5.15AM 35100
Figure 7 Plot of Intensity of Sunlight REAL LIFE TRAFFIC LIGHT IMPLEMENTATION
The Real life Traffic light like prototype is developed by designing a PCB with four parallel combinations of twelve LEDs in series. The designing of the PCB is done using PCB wizard3 software as shown in the Figure 8 and the PCB layout is fabricated. …show more content…
The experiment was done around 11.20 AM and the voltage generated by the single LED is around 0.08-0.3V.It is found from the Table 5 that the maximum voltage of 2.320V is recorded which is lower compared to when the PCB is exposed directly to the Sun.
Figure 9 Designed PCB of LED Array The reason is that exposure to light will be less as the PCB is vertical with respect to the ground.
Table 5 Voltage recorded with the designed PCB consisting of LED array
Experimental Condition Voltage Generated (Volts)
Direct exposure to the Sunlight(With the LEDs facing upwards) 4.120
PCB fixed to the vertical stand and facing East 2.249
Transparent
The Intensity of the sunlight is measured at different timings by using Lux Meter which measures the intensity of illumination. The Intensity of light is measured in Lux which is the S.I unit of measurement of intensity of illumination of a source. The results are tabulated in the Table 4 and plotted as shown in the Figure 7.
Table 4 Intensity of Sunlight
Time Intensity of Sunlight(LUX)
9.15AM 54900
11.15AM 73400
1.15AM 81000
3.15AM 64500
5.15AM 35100
Figure 7 Plot of Intensity of Sunlight REAL LIFE TRAFFIC LIGHT IMPLEMENTATION
The Real life Traffic light like prototype is developed by designing a PCB with four parallel combinations of twelve LEDs in series. The designing of the PCB is done using PCB wizard3 software as shown in the Figure 8 and the PCB layout is fabricated. …show more content…
The experiment was done around 11.20 AM and the voltage generated by the single LED is around 0.08-0.3V.It is found from the Table 5 that the maximum voltage of 2.320V is recorded which is lower compared to when the PCB is exposed directly to the Sun.
Figure 9 Designed PCB of LED Array The reason is that exposure to light will be less as the PCB is vertical with respect to the ground.
Table 5 Voltage recorded with the designed PCB consisting of LED array
Experimental Condition Voltage Generated (Volts)
Direct exposure to the Sunlight(With the LEDs facing upwards) 4.120
PCB fixed to the vertical stand and facing East 2.249
Transparent