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Optimizing access to B?hlmann coefficient (speed). Define number of compartiments, stops and gases.
author JeanDo
date Tue, 17 May 2011 15:56:09 +0200
parents 1d98f30ed44e
children bdcc5a5aa8d5
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// **************************************************************
// OSTC - diving computer code
// Copyright (C) 2008 HeinrichsWeikamp GbR
//
//    This program is free software: you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation, either version 3 of the License, or
//    (at your option) any later version.
//
//    This program is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// HISTORY
// 2011-01-20: jDG Cleanup addressing.
// 2011-02-13: jDG Correct some typos.
// 2011-05-17: jDG Optimized using interleaved arrays.
//
// **************************************************************

rom const float buhlmann_ab[] = {
// Data ZH-L16C, from Bühlmann Tauchmedizin 2002, option 1a (4mn)
// a for N2    b for N2     a of He     b for He
	1.2599,     0.5050,     1.7424,     0.4245,
	1.0000,     0.6514,     1.3830,     0.5747,
	0.8618,     0.7222,     1.1919,     0.6527,
	0.7562,     0.7825,     1.0458,     0.7223,
	0.6200,     0.8126,     0.9220,     0.7582,
	0.5043,     0.8434,     0.8205,     0.7957,
	0.4410,     0.8693,     0.7305,     0.8279,
	0.4000,     0.8910,     0.6502,     0.8553,
	0.3750,     0.9092,     0.5950,     0.8757,
	0.3500,     0.9222,     0.5545,     0.8903,
	0.3295,     0.9319,     0.5333,     0.8997,
	0.3065,     0.9403,     0.5189,     0.9073,
	0.2835,     0.9477,     0.5181,     0.9122,
	0.2610,     0.9544,     0.5176,     0.9171,
	0.2480,     0.9602,     0.5172,     0.9217,
	0.2327,     0.9653,     0.5119,     0.9267
};

rom const float buhlmann_ht[] = {
// Compartiment half-life, in minute
//-- N2 ---- He ---------------------------------------------------------------------
	4,	    1.51,
	8,      3.02,
	12,     4.72,
	18,     6.99,
	27,    10.21,
	39,    14.48,
	55,    20.53,
	77,    29.11,
	109,   41.20,
	146,   55.19,
	187,   70.69,
	239,   90.34,
	305,  115.29,
	390,  147.42,
	498,  188.24,
	635,  240.03
};

rom const float e2secs[] = {
// result of  1 - 2^(-1/(30sec*HT))
//---- N2 ------------- He ------------
	5.75958E-03,    1.51848E-02,  
	2.88395E-03,    7.62144E-03,
	1.92356E-03,    4.88315E-03,
    1.28278E-03,    3.29997E-03,
    8.55371E-04,    2.26041E-03,
    5.92258E-04,    1.59437E-03,
    4.20001E-04,    1.12479E-03,
    3.00019E-04,    7.93395E-04,
    2.11949E-04,    5.60641E-04,
    1.58240E-04,    4.18555E-04,
    1.23548E-04,    3.26795E-04,
    9.66686E-05,    2.55722E-04,
    7.57509E-05,    2.00387E-04,
    5.92416E-05,    1.56716E-04,
    4.63943E-05,    1.22734E-04,
    3.63850E-05,    9.62538E-05
//-------------------------------------
};

rom const float e1min[] = {
// Integration constant for 1 minute,
// Ie. 1- 2^(-1/HT)
//----- N2 --------- e 1min He --------
	1.59104E-01,    3.68109E-01,  	
    8.29960E-02,   	2.05084E-01,     
    5.61257E-02,    1.36579E-01,
    3.77762E-02,    9.44046E-02,
    2.53454E-02,    6.56359E-02,
    1.76160E-02,    4.67416E-02,
    1.25236E-02,    3.31991E-02,
    8.96152E-03,    2.35301E-02,
    6.33897E-03,    1.66832E-02,
    4.73633E-03,    1.24808E-02,
    3.69981E-03,    9.75753E-03,
    2.89600E-03,    7.64329E-03,
    2.27003E-03,    5.99417E-03,
    1.77572E-03,    4.69082E-03,
    1.39089E-03,    3.67548E-03,
    1.09097E-03,    2.88359E-03
//-------------------------------------
};

rom const float e10min[] = {
// The 10 min Value in float notation:
//  result of 1 - 2^(-10/ht)
//---- N2 -------------- He -----------
	8.23223E-01,    9.89851E-01,  
	5.79552E-01,  	8.99258E-01,
    4.38769E-01,    7.69737E-01,
    3.19605E-01,    6.29027E-01,
    2.26416E-01,    4.92821E-01,
    1.62832E-01,    3.80407E-01,
    1.18409E-01,    2.86538E-01,
    8.60863E-02,    2.11886E-01,
    6.16117E-02,    1.54849E-01,
    4.63665E-02,    1.18026E-01,
    3.63881E-02,    9.34005E-02,
    2.85855E-02,    7.38569E-02,
    2.24698E-02,    5.83504E-02,
    1.76160E-02,    4.59303E-02,
    1.38222E-02,    3.61528E-02,
    1.08563E-02,    2.84646E-02
//-------------------------------------
};