mirror of
https://github.com/RobTillaart/Arduino.git
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142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
#pragma once
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//
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// FILE: pressure.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.3.1
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// PURPOSE: Arduino library for pressure conversion
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// URL: https://github.com/RobTillaart/pressure
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#define PRESSURE_LIB_VERSION (F("0.3.1"))
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// CONSTANTS NEED TO BE VERIFIED
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// Temperature 25°C ?
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// CONSTANTS SETTERS
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#define BAR2MILLIBAR 1000
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#define ATM2MILLIBAR 1013.25
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#define PSI2MILLIBAR 68.9475729318
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#define DYNES2MILLIBAR 0.001
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#define INHG2MILLIBAR 33.85355
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#define INH2O2MILLIBAR 2.4908890833333
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#define PASCAL2MILLIBAR 0.01
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#define TORR2MILLIBAR 1.33322368
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#define CMHG2MILLIBAR 13.3322368
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#define CMH2O2MILLIBAR 0.980665
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#define MSW2MILLIBAR 0.01
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// CONSTANTS GETTERS
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#define MILLIBAR2BAR (1.0 / BAR2MILLIBAR)
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#define MILLIBAR2ATM (1.0 / ATM2MILLIBAR)
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#define MILLIBAR2PSI (1.0 / PSI2MILLIBAR)
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#define MILLIBAR2DYNES (1.0 / DYNES2MILLIBAR)
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#define MILLIBAR2INHG (1.0 / INHG2MILLIBAR)
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#define MILLIBAR2INH2O (1.0 / INH2O2MILLIBAR)
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#define MILLIBAR2PASCAL (1.0 / PASCAL2MILLIBAR)
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#define MILLIBAR2TORR (1.0 / TORR2MILLIBAR)
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#define MILLIBAR2CMHG (1.0 / CMHG2MILLIBAR)
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#define MILLIBAR2CMH2O (1.0 / CMH2O2MILLIBAR)
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#define MILLIBAR2MSW (1.0 / MSW2MILLIBAR)
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/*
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// was
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#define MILLIBAR2BAR 0.001
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#define MILLIBAR2ATM 9.86923267e-4
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#define MILLIBAR2PSI 0.0145037738
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#define MILLIBAR2DYNES 1000
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#define MILLIBAR2INHG 2.9539e-2
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#define MILLIBAR2INH2O 0.40146307866177
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#define MILLIBAR2PASCAL 100
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#define MILLIBAR2TORR 0.750061683
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#define MILLIBAR2CMHG 0.0750061683
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#define MILLIBAR2CMH2O 1.0197162129779
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#define MILLIBAR2MSW 100
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*/
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class pressure
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{
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public:
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// CONSTRUCTOR
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pressure(float value = 0.0) { _pressure = value; };
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void setMilliBar(float value) { _pressure = value; };
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void setBar(float value) { _pressure = value * BAR2MILLIBAR; };
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void setPSI(float value) { _pressure = value * PSI2MILLIBAR; };
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void setATM(float value) { _pressure = value * ATM2MILLIBAR; }
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void setDynes(float value) { _pressure = value * DYNES2MILLIBAR; }
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void setInchHg(float value) { _pressure = value * INHG2MILLIBAR; }
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void setInchH2O(float value) { _pressure = value * INH2O2MILLIBAR; }
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void setPascal(float value) { _pressure = value * PASCAL2MILLIBAR; }
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void setTORR(float value) { _pressure = value * TORR2MILLIBAR; }
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void setCmHg(float value) { _pressure = value * CMHG2MILLIBAR; }
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void setCmH2O(float value) { _pressure = value * CMH2O2MILLIBAR; }
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void setMSW(float value) { _pressure = value * MSW2MILLIBAR; }
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float getMilliBar() { return _pressure; };
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float getBar() { return _pressure * MILLIBAR2BAR; };
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float getPSI() { return _pressure * MILLIBAR2PSI; };
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float getATM() { return _pressure * MILLIBAR2ATM; }
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float getDynes() { return _pressure * MILLIBAR2DYNES; }
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float getInchHg() { return _pressure * MILLIBAR2INHG; }
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float getInchH2O() { return _pressure * MILLIBAR2INH2O; }
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float getPascal() { return _pressure * MILLIBAR2PASCAL; }
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float getTORR() { return _pressure * MILLIBAR2TORR; }
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float getCmHg() { return _pressure * MILLIBAR2CMHG; }
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float getCmH2O() { return _pressure * MILLIBAR2CMH2O; }
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float getMSW() { return _pressure * MILLIBAR2MSW; }
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// EXPERIMENTAL
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// temperature in KELVIN !
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float change(float T1, float T2, float V1, float V2, float N1, float N2)
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{
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changeTemperature(T1, T2);
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changeVolume(V1, V2);
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changeMole(N1, N2);
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return _pressure;
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}
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// temperature must be in KELVIN!
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float changeTemperature(float T1, float T2)
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{
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if ((T1 != T2) && (T1 > 0) && (T2 > 0))
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{
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_pressure *= (T2 / T1);
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}
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return _pressure;
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}
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// volume must be in same units
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float changeVolume(float V1, float V2)
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{
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if ((V1 != V2) && (V1 > 0) && (V2 > 0))
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{
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_pressure *= (V1 / V2);
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}
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return _pressure;
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}
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// moles must be in same units.
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float changeMole(float N1, float N2)
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{
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if ((N1 != N2) && (N1 > 0) && (N2 > 0))
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{
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_pressure *= (N2 / N1);
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}
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return _pressure;
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}
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private:
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float _pressure; // millibar.
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};
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// -- END OF FILE --
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