public double CalculateGasPpmDouble(GasSensorModel sensore, double voltage)
{
var amplificationFactor = sensore.R2 / sensore.R1;
var preVoltage = voltage / amplificationFactor;
var current = preVoltage / sensore.R1;
var result = current / (sensore.sensitivity / 1e9);
return(result);
}
public string CalculateGasPpm(GasSensorModel sensore, double voltage)
{
var amplificationFactor = sensore.R2 / sensore.R1;
var preVoltage = voltage / amplificationFactor;
var current = preVoltage / sensore.R1;
var result = current / (sensore.sensitivity / 1e9);
return(result.ToString("0.00"));
}
internal string CalculateCubicMeter(GasSensorModel sensorModel, double voltage)
{
var chemistryInfo = context.GasChemistries().FirstOrDefault(c => c.chemformula == sensorModel.type);
if (chemistryInfo == null)
{
throw new Exception($"No chemistry data record found for {sensorModel.type}");
}
return((CalculateGasPpmDouble(sensorModel, voltage) * 0.0409 * chemistryInfo.moleweight).ToString("0.00"));
}
