library/Zend/Measure/Power.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) 2005-2010 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 power conversions
  30  *
  31  * @category   Zend
  32  * @package    Zend_Measure
  33  * @subpackage Zend_Measure_Power
  34  * @copyright  Copyright (c) 2005-2010 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_Power extends Zend_Measure_Abstract
  38 {
  39     const STANDARD = 'WATT';
  40
  41     const ATTOWATT                               = 'ATTOWATT';
  42     const BTU_PER_HOUR                           = 'BTU_PER_HOUR';
  43     const BTU_PER_MINUTE                         = 'BTU_PER_MINUTE';
  44     const BTU_PER_SECOND                         = 'BTU_PER_SECOND';
  45     const CALORIE_PER_HOUR                       = 'CALORIE_PER_HOUR';
  46     const CALORIE_PER_MINUTE                     = 'CALORIE_PER_MINUTE';
  47     const CALORIE_PER_SECOND                     = 'CALORIE_PER_SECOND';
  48     const CENTIWATT                              = 'CENTIWATT';
  49     const CHEVAL_VAPEUR                          = 'CHEVAL_VAPEUR';
  50     const CLUSEC                                 = 'CLUSEC';
  51     const DECIWATT                               = 'DECIWATT';
  52     const DEKAWATT                               = 'DEKAWATT';
  53     const DYNE_CENTIMETER_PER_HOUR               = 'DYNE_CENTIMETER_PER_HOUR';
  54     const DYNE_CENTIMETER_PER_MINUTE             = 'DYNE_CENTIMETER_PER_MINUTE';
  55     const DYNE_CENTIMETER_PER_SECOND             = 'DYNE_CENTIMETER_PER_SECOND';
  56     const ERG_PER_HOUR                           = 'ERG_PER_HOUR';
  57     const ERG_PER_MINUTE                         = 'ERG_PER_MINUTE';
  58     const ERG_PER_SECOND                         = 'ERG_PER_SECOND';
  59     const EXAWATT                                = 'EXAWATT';
  60     const FEMTOWATT                              = 'FEMTOWATT';
  61     const FOOT_POUND_FORCE_PER_HOUR              = 'FOOT_POUND_FORCE_PER_HOUR';
  62     const FOOT_POUND_FORCE_PER_MINUTE            = 'FOOT_POUND_FORCE_PER_MINUTE';
  63     const FOOT_POUND_FORCE_PER_SECOND            = 'FOOT_POUND_FORCE_PER_SECOND';
  64     const FOOT_POUNDAL_PER_HOUR                  = 'FOOT_POUNDAL_PER_HOUR';
  65     const FOOT_POUNDAL_PER_MINUTE                = 'FOOT_POUNDAL_PER_MINUTE';
  66     const FOOT_POUNDAL_PER_SECOND                = 'FOOT_POUNDAL_PER_SECOND';
  67     const GIGAWATT                               = 'GIGAWATT';
  68     const GRAM_FORCE_CENTIMETER_PER_HOUR         = 'GRAM_FORCE_CENTIMETER_PER_HOUR';
  69     const GRAM_FORCE_CENTIMETER_PER_MINUTE       = 'GRAM_FORCE_CENTIMETER_PER_MINUTE';
  70     const GRAM_FORCE_CENTIMETER_PER_SECOND       = 'GRAM_FORCE_CENTIMETER_PER_SECOND';
  71     const HECTOWATT                              = 'HECTOWATT';
  72     const HORSEPOWER_INTERNATIONAL               = 'HORSEPOWER_INTERNATIONAL';
  73     const HORSEPOWER_ELECTRIC                    = 'HORSEPOWER_ELECTRIC';
  74     const HORSEPOWER                             = 'HORSEPOWER';
  75     const HORSEPOWER_WATER                       = 'HORSEPOWER_WATER';
  76     const INCH_OUNCE_FORCE_REVOLUTION_PER_MINUTE = 'INCH_OUNCH_FORCE_REVOLUTION_PER_MINUTE';
  77     const JOULE_PER_HOUR                         = 'JOULE_PER_HOUR';
  78     const JOULE_PER_MINUTE                       = 'JOULE_PER_MINUTE';
  79     const JOULE_PER_SECOND                       = 'JOULE_PER_SECOND';
  80     const KILOCALORIE_PER_HOUR                   = 'KILOCALORIE_PER_HOUR';
  81     const KILOCALORIE_PER_MINUTE                 = 'KILOCALORIE_PER_MINUTE';
  82     const KILOCALORIE_PER_SECOND                 = 'KILOCALORIE_PER_SECOND';
  83     const KILOGRAM_FORCE_METER_PER_HOUR          = 'KILOGRAM_FORCE_METER_PER_HOUR';
  84     const KILOGRAM_FORCE_METER_PER_MINUTE        = 'KILOGRAM_FORCE_METER_PER_MINUTE';
  85     const KILOGRAM_FORCE_METER_PER_SECOND        = 'KILOGRAM_FORCE_METER_PER_SECOND';
  86     const KILOPOND_METER_PER_HOUR                = 'KILOPOND_METER_PER_HOUR';
  87     const KILOPOND_METER_PER_MINUTE              = 'KILOPOND_METER_PER_MINUTE';
  88     const KILOPOND_METER_PER_SECOND              = 'KILOPOND_METER_PER_SECOND';
  89     const KILOWATT                               = 'KILOWATT';
  90     const MEGAWATT                               = 'MEGAWATT';
  91     const MICROWATT                              = 'MICROWATT';
  92     const MILLION_BTU_PER_HOUR                   = 'MILLION_BTU_PER_HOUR';
  93     const MILLIWATT                              = 'MILLIWATT';
  94     const NANOWATT                               = 'NANOWATT';
  95     const NEWTON_METER_PER_HOUR                  = 'NEWTON_METER_PER_HOUR';
  96     const NEWTON_METER_PER_MINUTE                = 'NEWTON_METER_PER_MINUTE';
  97     const NEWTON_METER_PER_SECOND                = 'NEWTON_METER_PER_SECOND';
  98     const PETAWATT                               = 'PETAWATT';
  99     const PFERDESTAERKE                          = 'PFERDESTAERKE';
 100     const PICOWATT                               = 'PICOWATT';
 101     const PONCELET                               = 'PONCELET';
 102     const POUND_SQUARE_FOOR_PER_CUBIC_SECOND     = 'POUND_SQUARE_FOOT_PER_CUBIC_SECOND';
 103     const TERAWATT                               = 'TERAWATT';
 104     const TON_OF_REFRIGERATION                   = 'TON_OF_REFRIGERATION';
 105     const WATT                                   = 'WATT';
 106     const YOCTOWATT                              = 'YOCTOWATT';
 107     const YOTTAWATT                              = 'YOTTAWATT';
 108     const ZEPTOWATT                              = 'ZEPTOWATT';
 109     const ZETTAWATT                              = 'ZETTAWATT';
 110
 111     /**
 112      * Calculations for all power units
 113      *
 114      * @var array
 115      */
 116     protected $_units = array(
 117         'ATTOWATT'                    => array('1.0e-18',           'aW'),
 118         'BTU_PER_HOUR'                => array('0.29307197',        'BTU/h'),
 119         'BTU_PER_MINUTE'              => array('17.5843182',        'BTU/m'),
 120         'BTU_PER_SECOND'              => array('1055.059092',       'BTU/s'),
 121         'CALORIE_PER_HOUR'            => array(array('' => '11630', '*' => '1.0e-7'),    'cal/h'),
 122         'CALORIE_PER_MINUTE'          => array(array('' => '697800', '*' => '1.0e-7'),   'cal/m'),
 123         'CALORIE_PER_SECOND'          => array(array('' => '41868000', '*' => '1.0e-7'), 'cal/s'),
 124         'CENTIWATT'                   => array('0.01',              'cW'),
 125         'CHEVAL_VAPEUR'               => array('735.49875',         'cv'),
 126         'CLUSEC'                      => array('0.0000013332237',   'clusec'),
 127         'DECIWATT'                    => array('0.1',               'dW'),
 128         'DEKAWATT'                    => array('10',                'daW'),
 129         'DYNE_CENTIMETER_PER_HOUR'    => array(array('' => '1.0e-7','/' => '3600'), 'dyn cm/h'),
 130         'DYNE_CENTIMETER_PER_MINUTE'  => array(array('' => '1.0e-7','/' => '60'),   'dyn cm/m'),
 131         'DYNE_CENTIMETER_PER_SECOND'  => array('1.0e-7',            'dyn cm/s'),
 132         'ERG_PER_HOUR'                => array(array('' => '1.0e-7','/' => '3600'), 'erg/h'),
 133         'ERG_PER_MINUTE'              => array(array('' => '1.0e-7','/' => '60'),   'erg/m'),
 134         'ERG_PER_SECOND'              => array('1.0e-7',            'erg/s'),
 135         'EXAWATT'                     => array('1.0e+18',           'EW'),
 136         'FEMTOWATT'                   => array('1.0e-15',           'fW'),
 137         'FOOT_POUND_FORCE_PER_HOUR'   => array(array('' => '1.3558179', '/' => '3600'), 'ft lb/h'),
 138         'FOOT_POUND_FORCE_PER_MINUTE' => array(array('' => '1.3558179', '/' => '60'),   'ft lb/m'),
 139         'FOOT_POUND_FORCE_PER_SECOND' => array('1.3558179',         'ft lb/s'),
 140         'FOOT_POUNDAL_PER_HOUR'       => array(array('' => '0.04214011','/' => '3600'), 'ft pdl/h'),
 141         'FOOT_POUNDAL_PER_MINUTE'     => array(array('' => '0.04214011', '/' => '60'),  'ft pdl/m'),
 142         'FOOT_POUNDAL_PER_SECOND'     => array('0.04214011',        'ft pdl/s'),
 143         'GIGAWATT'                    => array('1.0e+9',            'GW'),
 144         'GRAM_FORCE_CENTIMETER_PER_HOUR' => array(array('' => '0.0000980665','/' => '3600'), 'gf cm/h'),
 145         'GRAM_FORCE_CENTIMETER_PER_MINUTE' => array(array('' => '0.0000980665','/' => '60'), 'gf cm/m'),
 146         'GRAM_FORCE_CENTIMETER_PER_SECOND' => array('0.0000980665', 'gf cm/s'),
 147         'HECTOWATT'                   => array('100',               'hW'),
 148         'HORSEPOWER_INTERNATIONAL'    => array('745.69987',         'hp'),
 149         'HORSEPOWER_ELECTRIC'         => array('746',               'hp'),
 150         'HORSEPOWER'                  => array('735.49875',         'hp'),
 151         'HORSEPOWER_WATER'            => array('746.043',           'hp'),
 152         'INCH_OUNCH_FORCE_REVOLUTION_PER_MINUTE' => array('0.00073948398',    'in ocf/m'),
 153         'JOULE_PER_HOUR'              => array(array('' => '1', '/' => '3600'), 'J/h'),
 154         'JOULE_PER_MINUTE'            => array(array('' => '1', '/' => '60'),   'J/m'),
 155         'JOULE_PER_SECOND'            => array('1',                 'J/s'),
 156         'KILOCALORIE_PER_HOUR'        => array('1.163',             'kcal/h'),
 157         'KILOCALORIE_PER_MINUTE'      => array('69.78',             'kcal/m'),
 158         'KILOCALORIE_PER_SECOND'      => array('4186.8',            'kcal/s'),
 159         'KILOGRAM_FORCE_METER_PER_HOUR' => array(array('' => '9.80665', '/' => '3600'), 'kgf m/h'),
 160         'KILOGRAM_FORCE_METER_PER_MINUTE' => array(array('' => '9.80665', '/' => '60'), 'kfg m/m'),
 161         'KILOGRAM_FORCE_METER_PER_SECOND' => array('9.80665',       'kfg m/s'),
 162         'KILOPOND_METER_PER_HOUR'     => array(array('' => '9.80665', '/' => '3600'), 'kp/h'),
 163         'KILOPOND_METER_PER_MINUTE'   => array(array('' => '9.80665', '/' => '60'),   'kp/m'),
 164         'KILOPOND_METER_PER_SECOND'   => array('9.80665',           'kp/s'),
 165         'KILOWATT'                    => array('1000',              'kW'),
 166         'MEGAWATT'                    => array('1000000',           'MW'),
 167         'MICROWATT'                   => array('0.000001',          'µW'),
 168         'MILLION_BTU_PER_HOUR'        => array('293071.07',         'mio BTU/h'),
 169         'MILLIWATT'                   => array('0.001',             'mM'),
 170         'NANOWATT'                    => array('1.0e-9',            'nN'),
 171         'NEWTON_METER_PER_HOUR'       => array(array('' => '1', '/' => '3600'), 'Nm/h'),
 172         'NEWTON_METER_PER_MINUTE'     => array(array('' => '1', '/' => '60'),   'Nm/m'),
 173         'NEWTON_METER_PER_SECOND'     => array('1',                 'Nm/s'),
 174         'PETAWATT'                    => array('1.0e+15',           'PW'),
 175         'PFERDESTAERKE'               => array('735.49875',         'PS'),
 176         'PICOWATT'                    => array('1.0e-12',           'pW'),
 177         'PONCELET'                    => array('980.665',           'p'),
 178         'POUND_SQUARE_FOOT_PER_CUBIC_SECOND' => array('0.04214011', 'lb ft²/s³'),
 179         'TERAWATT'                    => array('1.0e+12',           'TW'),
 180         'TON_OF_REFRIGERATION'        => array('3516.85284',        'RT'),
 181         'WATT'                        => array('1',                 'W'),
 182         'YOCTOWATT'                   => array('1.0e-24',           'yW'),
 183         'YOTTAWATT'                   => array('1.0e+24',           'YW'),
 184         'ZEPTOWATT'                   => array('1.0e-21',           'zW'),
 185         'ZETTAWATT'                   => array('1.0e+21',           'ZW'),
 186         'STANDARD'                    => 'WATT'
 187     );
 188 }