Sap Flux Power Calculations (blog).xlsx
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SAP FLUX SENSOR ENERGY DESIGN MATRIX
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by Brett Stoddard 6/4/2018 for OPEnS Lab
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Variables:Pulse length(seconds)88881010109002.5
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Resistance(ohms)2040608020403.33333333352.220
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Fixed Values
Voltage(volts)3.73.73.73.73.73.73.73.33.3
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0.2
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Values:Amperage(amps)0.1850.09250.061666666670.046250.1850.09251.110.06321839080.0670.06060606061
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Energy(watts)0.68450.342250.22816666670.1711250.68450.342254.1070.20.22111.454545455
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Energy(joules)5.4762.7381.8253333331.3696.8453.422541.071800.55275
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Temp Delta(*C)1.3690.68450.45633333330.342251.711250.8556252.0535450.1381875
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Energy Reqs:
Daily amp hours
(Ah/day)0.1480.0740.049333333330.0370.1850.09250.2965.6896551720.01675
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Assuming 1 measurement every 15 minutes for 24 hours a day
0.013566666670.0101750.0508750.02543750.08141.5646551720.00460625
12 v battery
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Goal: Maximize temp delta, minimize daily amp hours
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