library/Zend/Measure/Pressure.php

   1 <?php
   2 /**
   3  * Zend Framework
   4  *
   5  * LICENSE
   6  *
   7  * This source file is subject to the new BSD license that is bundled
   8  * with this package in the file LICENSE.txt.
   9  * It is also available through the world-wide-web at this URL:
  10  * http://framework.zend.com/license/new-bsd
  11  * If you did not receive a copy of the license and are unable to
  12  * obtain it through the world-wide-web, please send an email
  13  * to license@zend.com so we can send you a copy immediately.
  14  *
  15  * @category  Zend
  16  * @package   Zend_Measure
  17  * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  18  * @license   http://framework.zend.com/license/new-bsd     New BSD License
  19  * @version   $Id$
  20  */
  21
  22 /**
  23  * Implement needed classes
  24  */
  25 require_once 'Zend/Measure/Abstract.php';
  26 require_once 'Zend/Locale.php';
  27
  28 /**
  29  * Class for handling pressure conversions
  30  *
  31  * @category   Zend
  32  * @package    Zend_Measure
  33  * @subpackage Zend_Measure_Pressure
  34  * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  35  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  36  */
  37 class Zend_Measure_Pressure extends Zend_Measure_Abstract
  38 {
  39     const STANDARD = 'NEWTON_PER_SQUARE_METER';
  40
  41     const ATMOSPHERE                           = 'ATMOSPHERE';
  42     const ATMOSPHERE_TECHNICAL                 = 'ATMOSPHERE_TECHNICAL';
  43     const ATTOBAR                              = 'ATTOBAR';
  44     const ATTOPASCAL                           = 'ATTOPASCAL';
  45     const BAR                                  = 'BAR';
  46     const BARAD                                = 'BARAD';
  47     const BARYE                                = 'BARYE';
  48     const CENTIBAR                             = 'CENTIBAR';
  49     const CENTIHG                              = 'CENTIHG';
  50     const CENTIMETER_MERCURY_0C                = 'CENTIMETER_MERCURY_0C';
  51     const CENTIMETER_WATER_4C                  = 'CENTIMETER_WATER_4C';
  52     const CENTIPASCAL                          = 'CENTIPASCAL';
  53     const CENTITORR                            = 'CENTITORR';
  54     const DECIBAR                              = 'DECIBAR';
  55     const DECIPASCAL                           = 'DECIPASCAL';
  56     const DECITORR                             = 'DECITORR';
  57     const DEKABAR                              = 'DEKABAR';
  58     const DEKAPASCAL                           = 'DEKAPASCAL';
  59     const DYNE_PER_SQUARE_CENTIMETER           = 'DYNE_PER_SQUARE_CENTIMETER';
  60     const EXABAR                               = 'EXABAR';
  61     const EXAPASCAL                            = 'EXAPASCAL';
  62     const FEMTOBAR                             = 'FEMTOBAR';
  63     const FEMTOPASCAL                          = 'FEMTOPASCAL';
  64     const FOOT_AIR_0C                          = 'FOOT_AIR_0C';
  65     const FOOT_AIR_15C                         = 'FOOT_AIR_15C';
  66     const FOOT_HEAD                            = 'FOOT_HEAD';
  67     const FOOT_MERCURY_0C                      = 'FOOT_MERCURY_0C';
  68     const FOOT_WATER_4C                        = 'FOOT_WATER_4C';
  69     const GIGABAR                              = 'GIGABAR';
  70     const GIGAPASCAL                           = 'GIGAPASCAL';
  71     const GRAM_FORCE_SQUARE_CENTIMETER         = 'GRAM_FORCE_SQUARE_CENTIMETER';
  72     const HECTOBAR                             = 'HECTOBAR';
  73     const HECTOPASCAL                          = 'HECTOPASCAL';
  74     const INCH_AIR_0C                          = 'INCH_AIR_0C';
  75     const INCH_AIR_15C                         = 'INCH_AIR_15C';
  76     const INCH_MERCURY_0C                      = 'INCH_MERCURY_0C';
  77     const INCH_WATER_4C                        = 'INCH_WATER_4C';
  78     const KILOBAR                              = 'KILOBAR';
  79     const KILOGRAM_FORCE_PER_SQUARE_CENTIMETER = 'KILOGRAM_FORCE_PER_SQUARE_CENTIMETER';
  80     const KILOGRAM_FORCE_PER_SQUARE_METER      = 'KILOGRAM_FORCE_PER_SQUARE_METER';
  81     const KILOGRAM_FORCE_PER_SQUARE_MILLIMETER = 'KILOGRAM_FORCE_PER_SQUARE_MILLIMETER';
  82     const KILONEWTON_PER_SQUARE_METER          = 'KILONEWTON_PER_SQUARE_METER';
  83     const KILOPASCAL                           = 'KILOPASCAL';
  84     const KILOPOND_PER_SQUARE_CENTIMETER       = 'KILOPOND_PER_SQUARE_CENTIMETER';
  85     const KILOPOND_PER_SQUARE_METER            = 'KILOPOND_PER_SQUARE_METER';
  86     const KILOPOND_PER_SQUARE_MILLIMETER       = 'KILOPOND_PER_SQUARE_MILLIMETER';
  87     const KIP_PER_SQUARE_FOOT                  = 'KIP_PER_SQUARE_FOOT';
  88     const KIP_PER_SQUARE_INCH                  = 'KIP_PER_SQUARE_INCH';
  89     const MEGABAR                              = 'MEGABAR';
  90     const MEGANEWTON_PER_SQUARE_METER          = 'MEGANEWTON_PER_SQUARE_METER';
  91     const MEGAPASCAL                           = 'MEGAPASCAL';
  92     const METER_AIR_0C                         = 'METER_AIR_0C';
  93     const METER_AIR_15C                        = 'METER_AIR_15C';
  94     const METER_HEAD                           = 'METER_HEAD';
  95     const MICROBAR                             = 'MICROBAR';
  96     const MICROMETER_MERCURY_0C                = 'MICROMETER_MERCURY_0C';
  97     const MICROMETER_WATER_4C                  = 'MICROMETER_WATER_4C';
  98     const MICRON_MERCURY_0C                    = 'MICRON_MERCURY_0C';
  99     const MICROPASCAL                          = 'MICROPASCAL';
 100     const MILLIBAR                             = 'MILLIBAR';
 101     const MILLIHG                              = 'MILLIHG';
 102     const MILLIMETER_MERCURY_0C                = 'MILLIMETER_MERCURY_0C';
 103     const MILLIMETER_WATER_4C                  = 'MILLIMETER_WATER_4C';
 104     const MILLIPASCAL                          = 'MILLIPASCAL';
 105     const MILLITORR                            = 'MILLITORR';
 106     const NANOBAR                              = 'NANOBAR';
 107     const NANOPASCAL                           = 'NANOPASCAL';
 108     const NEWTON_PER_SQUARE_METER              = 'NEWTON_PER_SQUARE_METER';
 109     const NEWTON_PER_SQUARE_MILLIMETER         = 'NEWTON_PER_SQUARE_MILLIMETER';
 110     const OUNCE_PER_SQUARE_INCH                = 'OUNCE_PER_SQUARE_INCH';
 111     const PASCAL                               = 'PASCAL';
 112     const PETABAR                              = 'PETABAR';
 113     const PETAPASCAL                           = 'PETAPASCAL';
 114     const PICOBAR                              = 'PICOBAR';
 115     const PICOPASCAL                           = 'PICOPASCAL';
 116     const PIEZE                                = 'PIEZE';
 117     const POUND_PER_SQUARE_FOOT                = 'POUND_PER_SQUARE_FOOT';
 118     const POUND_PER_SQUARE_INCH                = 'POUND_PER_SQUARE_INCH';
 119     const POUNDAL_PER_SQUARE_FOOT              = 'POUNDAL_PER_SQUARE_FOOT';
 120     const STHENE_PER_SQUARE_METER              = 'STHENE_PER_SQUARE_METER';
 121     const TECHNICAL_ATMOSPHERE                 = 'TECHNICAL_ATMOSPHERE';
 122     const TERABAR                              = 'TERABAR';
 123     const TERAPASCAL                           = 'TERAPASCAL';
 124     const TON_PER_SQUARE_FOOT                  = 'TON_PER_SQUARE_FOOT';
 125     const TON_PER_SQUARE_FOOT_SHORT            = 'TON_PER_SQUARE_FOOT_SHORT';
 126     const TON_PER_SQUARE_INCH                  = 'TON_PER_SQUARE_INCH';
 127     const TON_PER_SQUARE_INCH_SHORT            = 'TON_PER_SQUARE_INCH_SHORT';
 128     const TON_PER_SQUARE_METER                 = 'TON_PER_SQUARE_METER';
 129     const TORR                                 = 'TORR';
 130     const WATER_COLUMN_CENTIMETER              = 'WATER_COLUMN_CENTIMETER';
 131     const WATER_COLUMN_INCH                    = 'WATER_COLUMN_INCH';
 132     const WATER_COLUMN_MILLIMETER              = 'WATER_COLUMN_MILLIMETER';
 133     const YOCTOBAR                             = 'YOCTOBAR';
 134     const YOCTOPASCAL                          = 'YOCTOPASCAL';
 135     const YOTTABAR                             = 'YOTTABAR';
 136     const YOTTAPASCAL                          = 'YOTTAPASCAL';
 137     const ZEPTOBAR                             = 'ZEPTOBAR';
 138     const ZEPTOPASCAL                          = 'ZEPTOPASCAL';
 139     const ZETTABAR                             = 'ZETTABAR';
 140     const ZETTAPASCAL                          = 'ZETTAPASCAL';
 141
 142     /**
 143      * Calculations for all pressure units
 144      *
 145      * @var array
 146      */
 147     protected $_units = array(
 148         'ATMOSPHERE'            => array('101325.01', 'atm'),
 149         'ATMOSPHERE_TECHNICAL'  => array('98066.5',   'atm'),
 150         'ATTOBAR'               => array('1.0e-13',   'ab'),
 151         'ATTOPASCAL'            => array('1.0e-18',   'aPa'),
 152         'BAR'                   => array('100000',    'b'),
 153         'BARAD'                 => array('0.1',       'barad'),
 154         'BARYE'                 => array('0.1',       'ba'),
 155         'CENTIBAR'              => array('1000',      'cb'),
 156         'CENTIHG'               => array('1333.2239', 'cHg'),
 157         'CENTIMETER_MERCURY_0C' => array('1333.2239', 'cm mercury (0°C)'),
 158         'CENTIMETER_WATER_4C'   => array('98.0665',   'cm water (4°C)'),
 159         'CENTIPASCAL'           => array('0.01',      'cPa'),
 160         'CENTITORR'             => array('1.3332237', 'cTorr'),
 161         'DECIBAR'               => array('10000',     'db'),
 162         'DECIPASCAL'            => array('0.1',       'dPa'),
 163         'DECITORR'              => array('13.332237', 'dTorr'),
 164         'DEKABAR'               => array('1000000',   'dab'),
 165         'DEKAPASCAL'            => array('10',        'daPa'),
 166         'DYNE_PER_SQUARE_CENTIMETER' => array('0.1',  'dyn/cm²'),
 167         'EXABAR'                => array('1.0e+23',   'Eb'),
 168         'EXAPASCAL'             => array('1.0e+18',   'EPa'),
 169         'FEMTOBAR'              => array('1.0e-10',   'fb'),
 170         'FEMTOPASCAL'           => array('1.0e-15',   'fPa'),
 171         'FOOT_AIR_0C'           => array('3.8640888', 'ft air (0°C)'),
 172         'FOOT_AIR_15C'          => array('3.6622931', 'ft air (15°C)'),
 173         'FOOT_HEAD'             => array('2989.0669', 'ft head'),
 174         'FOOT_MERCURY_0C'       => array('40636.664', 'ft mercury (0°C)'),
 175         'FOOT_WATER_4C'         => array('2989.0669', 'ft water (4°C)'),
 176         'GIGABAR'               => array('1.0e+14',   'Gb'),
 177         'GIGAPASCAL'            => array('1.0e+9',    'GPa'),
 178         'GRAM_FORCE_SQUARE_CENTIMETER' => array('98.0665', 'gf'),
 179         'HECTOBAR'              => array('1.0e+7',    'hb'),
 180         'HECTOPASCAL'           => array('100',       'hPa'),
 181         'INCH_AIR_0C'           => array(array('' => '3.8640888', '/' => '12'), 'in air (0°C)'),
 182         'INCH_AIR_15C'          => array(array('' => '3.6622931', '/' => '12'), 'in air (15°C)'),
 183         'INCH_MERCURY_0C'       => array(array('' => '40636.664', '/' => '12'), 'in mercury (0°C)'),
 184         'INCH_WATER_4C'         => array(array('' => '2989.0669', '/' => '12'), 'in water (4°C)'),
 185         'KILOBAR'               => array('1.0e+8',    'kb'),
 186         'KILOGRAM_FORCE_PER_SQUARE_CENTIMETER' => array('98066.5', 'kgf/cm²'),
 187         'KILOGRAM_FORCE_PER_SQUARE_METER'      => array('9.80665', 'kgf/m²'),
 188         'KILOGRAM_FORCE_PER_SQUARE_MILLIMETER' => array('9806650', 'kgf/mm²'),
 189         'KILONEWTON_PER_SQUARE_METER'          => array('1000',    'kN/m²'),
 190         'KILOPASCAL'            => array('1000',      'kPa'),
 191         'KILOPOND_PER_SQUARE_CENTIMETER' => array('98066.5', 'kp/cm²'),
 192         'KILOPOND_PER_SQUARE_METER'      => array('9.80665', 'kp/m²'),
 193         'KILOPOND_PER_SQUARE_MILLIMETER' => array('9806650', 'kp/mm²'),
 194         'KIP_PER_SQUARE_FOOT'   => array(array('' => '430.92233', '/' => '0.009'),   'kip/ft²'),
 195         'KIP_PER_SQUARE_INCH'   => array(array('' => '62052.81552', '/' => '0.009'), 'kip/in²'),
 196         'MEGABAR'               => array('1.0e+11',    'Mb'),
 197         'MEGANEWTON_PER_SQUARE_METER' => array('1000000', 'MN/m²'),
 198         'MEGAPASCAL'            => array('1000000',    'MPa'),
 199         'METER_AIR_0C'          => array('12.677457',  'm air (0°C)'),
 200         'METER_AIR_15C'         => array('12.015397',  'm air (15°C)'),
 201         'METER_HEAD'            => array('9804.139432', 'm head'),
 202         'MICROBAR'              => array('0.1',        'µb'),
 203         'MICROMETER_MERCURY_0C' => array('0.13332239', 'µm mercury (0°C)'),
 204         'MICROMETER_WATER_4C'   => array('0.00980665', 'µm water (4°C)'),
 205         'MICRON_MERCURY_0C'     => array('0.13332239', 'µ mercury (0°C)'),
 206         'MICROPASCAL'           => array('0.000001',   'µPa'),
 207         'MILLIBAR'              => array('100',        'mb'),
 208         'MILLIHG'               => array('133.32239',  'mHg'),
 209         'MILLIMETER_MERCURY_0C' => array('133.32239',  'mm mercury (0°C)'),
 210         'MILLIMETER_WATER_4C'   => array('9.80665',    'mm water (0°C)'),
 211         'MILLIPASCAL'           => array('0.001',      'mPa'),
 212         'MILLITORR'             => array('0.13332237', 'mTorr'),
 213         'NANOBAR'               => array('0.0001',     'nb'),
 214         'NANOPASCAL'            => array('1.0e-9',     'nPa'),
 215         'NEWTON_PER_SQUARE_METER'      => array('1',   'N/m²'),
 216         'NEWTON_PER_SQUARE_MILLIMETER' => array('1000000',   'N/mm²'),
 217         'OUNCE_PER_SQUARE_INCH'        => array('430.92233', 'oz/in²'),
 218         'PASCAL'                => array('1',          'Pa'),
 219         'PETABAR'               => array('1.0e+20',    'Pb'),
 220         'PETAPASCAL'            => array('1.0e+15',    'PPa'),
 221         'PICOBAR'               => array('0.0000001',  'pb'),
 222         'PICOPASCAL'            => array('1.0e-12',    'pPa'),
 223         'PIEZE'                 => array('1000',       'pz'),
 224         'POUND_PER_SQUARE_FOOT' => array(array('' => '430.92233', '/' => '9'), 'lb/ft²'),
 225         'POUND_PER_SQUARE_INCH' => array('6894.75728', 'lb/in²'),
 226         'POUNDAL_PER_SQUARE_FOOT' => array('1.4881639', 'pdl/ft²'),
 227         'STHENE_PER_SQUARE_METER' => array('1000',     'sn/m²'),
 228         'TECHNICAL_ATMOSPHERE'  => array('98066.5',    'at'),
 229         'TERABAR'               => array('1.0e+17',    'Tb'),
 230         'TERAPASCAL'            => array('1.0e+12',    'TPa'),
 231         'TON_PER_SQUARE_FOOT'   => array(array('' => '120658.2524', '/' => '1.125'),      't/ft²'),
 232         'TON_PER_SQUARE_FOOT_SHORT' => array(array('' => '430.92233', '/' => '0.0045'),   't/ft²'),
 233         'TON_PER_SQUARE_INCH'   => array(array('' => '17374788.3456', '/' => '1.125'),    't/in²'),
 234         'TON_PER_SQUARE_INCH_SHORT' => array(array('' => '62052.81552', '/' => '0.0045'), 't/in²'),
 235         'TON_PER_SQUARE_METER'  => array('9806.65',    't/m²'),
 236         'TORR'                  => array('133.32237',  'Torr'),
 237         'WATER_COLUMN_CENTIMETER' => array('98.0665',  'WC (cm)'),
 238         'WATER_COLUMN_INCH'       => array(array('' => '2989.0669', '/' => '12'), 'WC (in)'),
 239         'WATER_COLUMN_MILLIMETER' => array('9.80665',  'WC (mm)'),
 240         'YOCTOBAR'              => array('1.0e-19',    'yb'),
 241         'YOCTOPASCAL'           => array('1.0e-24',    'yPa'),
 242         'YOTTABAR'              => array('1.0e+29',    'Yb'),
 243         'YOTTAPASCAL'           => array('1.0e+24',    'YPa'),
 244         'ZEPTOBAR'              => array('1.0e-16',    'zb'),
 245         'ZEPTOPASCAL'           => array('1.0e-21',    'zPa'),
 246         'ZETTABAR'              => array('1.0e+26',    'Zb'),
 247         'ZETTAPASCAL'           => array('1.0e+21',    'ZPa'),
 248         'STANDARD'              => 'NEWTON_PER_SQUARE_METER'
 249     );
 250 }