80 | | First convert the resolution reading into voltage reading by taking the |
81 | | ratio of the resolution reading and multiplying it by 1100mV internal Arduino voltage. Then by dividing the inverting amplifier gain of 4.7 and adding the |
82 | | AD737JNZ chip off-set of 2.468mV gives us a final voltage reading of the input signal. The off-set for the AD737JNZ chip was calculated individually for |
83 | | each analog pin by testing 10 different AC signals and measuring the input and output for AD737JNZ chip. |
| 80 | First convert the resolution reading into voltage reading by taking the ratio of the resolution reading and multiplying it by 1100mV internal Arduino |
| 81 | voltage. Then by dividing out the inverting amplifier gain of 4.7 and adding the AD737JNZ chip off-set of 2.468mV gives us a final voltage reading of the |
| 82 | input signal. The off-set for the AD737JNZ chip was calculated individually for each analog pin by testing 10 different AC signals and measuring the input |
| 83 | and output of the AD737JNZ chip.[[BR]] |
| 84 | |
| 85 | || [[Image(IndepPinOff-Set.PNG, 600px)]] || |
| 86 | || Figure : Chip Off-Set || |
| 87 | [[BR]] |
| 88 | |
| 89 | To view rest of the off-sets download {{{Off-Set-Chart.xlsx}}} from the attachments. The next step is to convert this voltage reading to a current |
| 90 | reading by dividing the voltage by 42Ω. Now the current has to be scaled back again by applying the inverse ratio of 40A to 26.23mA to the code and |
| 91 | lastly converting the proper current reading to a power reading by the applying the following equation: P = R* (I)^2.[[BR]] |
| 92 | |
| 93 | 4)Use PuTTY Pageant Software to double tunnel to the ORBIT Network and then |
| 94 | |
| 95 | |
| 96 | |