LDR Resistance (Ω) 130000 65000 11000 6700 3500 2600 2100 2000 1900 1700 1400 1280 1200 1090 Illuminance (lux) 1270 1976 2460 3340 Enter your measurements here. The data will then be used in the LDR analysis. You may need to adjust your analysis page to accommodate the amount of data that you collected. i.e., this document expects 19 data points; if you have more or fewer data points, then you will need to adjust the graphs and the line calculations accordingly. Created By David Williams (2015-12-04) s here. The data u may need to adjust amount of data that s 19 data points; if n you will need to s accordingly. R This line calculation comes from the plot of log(lux) as a fn of log(R) lux 130000 65000 11000 6700 3500 2600 2100 2000 1900 1700 1400 1280 1200 1090 Slope 1.40496654731119 y-intercept 7.09756727017461 These coefficient calculations come from solving the above line calcuation (log(lux) = m*log(R) + b) for lux. Giving: lux = A*R^B A = 10^(y-intercept) 12518931.7038422 B = slope 1.40496654731119 Resulting Illuminance Equation: lux = A * Resistance^B 1270 1976 2460 3340 Lux as a function of Res 4000 3500 3000 Illuminance (lux) 2500 2000 1500 1000 500 0 0 20000 40000 60000 Resistance (Ohms) Resistance vs Lux 80 0 0 20000 40000 60000 80 Resistance (Ohms) Resistance vs Lux log(R) vs log(lux) 4 3.5 3 log(lux) log(Resistance) 4 4.5 log(R ) log(lux) 5.11394335230684 4.81291335664286 4.04139268515823 3.82607480270083 3.54406804435028 3.41497334797082 3.32221929473392 3.30102999566398 3.27875360095283 3.23044892137827 3.14612803567824 3.10720996964787 3.07918124604762 3.03742649794062 2.94448267215017 2.86923171973098 2.71850168886727 2.61278385671974 2.51054501020661 0 0.301029995663981 1.30102999566398 1.73239375982297 2 2.30102999566398 2.39794000867204 2.47712125471966 2.54406804435028 2.60205999132796 2.69897000433602 2.77085201164214 2.80617997398389 2.84509804001426 2.96848294855394 3.10380372095596 3.29578694025161 3.3909351071

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