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units.h

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// SuperMix version 1.0  C++ source file
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// Copyright (c) 1999 California Institute of Technology.
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// ********************************************************************
//
// 5/14/01:  Converted comments to javadoc format.
// 3/12/01:  Fixed name for conductance to "Siemens".
// 8/19/98:  Added units for conductance.
// 10/20/97: Added powers of 10, Meter; rewrote some definitions.
// 9/19/97:  Added "electromagnetic properties" of the Vacuum 
// 9/17/97:  Added eCharge
// 9/7/97:   Added Joule, hPlanck, updated values of constants
// 8/12/97:  Fixed definitions that used "Sec" vice "Second"
// 8/7/97:   Added Capacitance and Inductance
// 8/1/97:   Added Temperature, Boltzmann's Constant
// 8/1/97:   Fully tested. Now includes global.h
// 7/31/97:  First version. Compiles o.k., otherwise not tested.
//
// ********************************************************************

#ifndef UNITS_H
#define UNITS_H 1

#include "global.h"

const double  Kilo   = 1000;
const double  Mega   = Kilo * Kilo;
const double  Giga   = Kilo * Mega;
const double  Tera   = Kilo * Giga;
const double  Centi  = 0.01;
const double  Milli  = 0.001;
const double  Micro  = Milli * Milli;
const double  Nano   = Milli * Micro;
const double  Pico   = Milli * Nano;
const double  Femto  = Milli * Pico;

const double  Volt   = Kilo * mVolt;

const double  mAmp   = mVolt / Ohm;
const double  Amp    = Kilo * mAmp;

const double  Mho    = 1 / Ohm;
const double  Siemens  = Mho;
const double  mSiemens = Milli * Siemens;

const double  uWatt  = mAmp * mVolt;
const double  Watt   = Mega * uWatt;

const double  Hertz  = Nano * GHz;
const double  MHz    = Milli * GHz;

const double  nSec   = 1/GHz;  // so 1 nS is stored internally as (1/GHz)
const double  Second = 1/Hertz; 

const double  Joule  = Watt * Second;

const double  Meter  = Mega * Micron;
const double  Angstrom = (1.0e-10) * Meter;

const double  Farad  = Second / Ohm;
const double  fFarad = Femto * Farad;
const double  pFarad = Pico * Farad;
const double  Henry  = Second * Ohm;
const double  nHenry = Nano * Henry;


// Physical Constants, in terms of the Master Units:

const double cLight = 299792.458 * Kilo*Meter / Second;

const double muVacuum = 4 * Pi * (1.0e-7) * Ohm /(Meter/Second);

const double epsVacuum = 1/(muVacuum * cLight * cLight);

const double ZVacuum = muVacuum * cLight;

const double VoltToFreq = 241.798836 * GHz / mVolt;

const double BoltzK = (1.380658e-23) * Watt / (Hertz * Kelvin);

const double hPlanck = (6.6260755e-34) * Joule * Second;

const double eCharge = (1.60217733e-19) * Amp * Second;

#endif /* UNITS_H */

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