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lib/Device/USB/PCSensor/HidTEMPer/NTC/External.pm  view on Meta::CPAN

                      @data = $self->{unit}->_read( 0x41 );
                  }
    
    croak 'Invalid readings returned' if $counter >= 21;
    
    # Calculate key
    $key = $self->_volt_7705_calibration( $volt );
    
=pod

The formula used to calculate value based on a calibrated key value is
created using the Eureqa tool from Cornell Computational Synthesis Lab,
http://ccsl.mae.cornell.edu/eureqa.

Resulting in the use of this formula instead of the provided number list:
f(y)=66.7348/(66.7275/(67.8088 - 9.70353*log(0.000251309 + y*y)) - 0.21651)

If you find another formula that is more accurate please drop me a line. 
The data used can be found in the source code of this file.

=cut 

    $temperature = 66.7348 
                  / ( 66.7275 
                      / ( 67.8088 
                          - 
                          9.70353
                          *