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1 <?php |
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2 /** |
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3 * Zend Framework |
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4 * |
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5 * LICENSE |
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6 * |
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7 * This source file is subject to the new BSD license that is bundled |
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8 * with this package in the file LICENSE.txt. |
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9 * It is also available through the world-wide-web at this URL: |
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10 * http://framework.zend.com/license/new-bsd |
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11 * If you did not receive a copy of the license and are unable to |
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12 * obtain it through the world-wide-web, please send an email |
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13 * to license@zend.com so we can send you a copy immediately. |
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14 * |
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15 * @category Zend |
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16 * @package Zend_Measure |
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17 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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18 * @license http://framework.zend.com/license/new-bsd New BSD License |
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19 * @version $Id: Capacitance.php 20096 2010-01-06 02:05:09Z bkarwin $ |
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20 */ |
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21 |
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22 /** |
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23 * Implement needed classes |
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24 */ |
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25 require_once 'Zend/Measure/Abstract.php'; |
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26 require_once 'Zend/Locale.php'; |
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27 |
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28 /** |
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29 * Class for handling capacitance conversions |
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30 * |
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31 * @category Zend |
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32 * @package Zend_Measure |
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33 * @subpackage Zend_Measure_Capacitance |
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34 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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35 * @license http://framework.zend.com/license/new-bsd New BSD License |
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36 */ |
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37 class Zend_Measure_Capacitance extends Zend_Measure_Abstract |
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38 { |
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39 const STANDARD = 'FARAD'; |
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40 |
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41 const ABFARAD = 'ABFARAD'; |
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42 const AMPERE_PER_SECOND_VOLT = 'AMPERE_PER_SECOND_VOLT'; |
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43 const CENTIFARAD = 'CENTIFARAD'; |
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44 const COULOMB_PER_VOLT = 'COULOMB_PER_VOLT'; |
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45 const DECIFARAD = 'DECIFARAD'; |
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46 const DEKAFARAD = 'DEKAFARAD'; |
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47 const ELECTROMAGNETIC_UNIT = 'ELECTROMAGNETIC_UNIT'; |
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48 const ELECTROSTATIC_UNIT = 'ELECTROSTATIC_UNIT'; |
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49 const FARAD = 'FARAD'; |
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50 const FARAD_INTERNATIONAL = 'FARAD_INTERNATIONAL'; |
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51 const GAUSSIAN = 'GAUSSIAN'; |
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52 const GIGAFARAD = 'GIGAFARAD'; |
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53 const HECTOFARAD = 'HECTOFARAD'; |
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54 const JAR = 'JAR'; |
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55 const KILOFARAD = 'KILOFARAD'; |
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56 const MEGAFARAD = 'MEGAFARAD'; |
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57 const MICROFARAD = 'MICROFARAD'; |
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58 const MILLIFARAD = 'MILLIFARAD'; |
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59 const NANOFARAD = 'NANOFARAD'; |
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60 const PICOFARAD = 'PICOFARAD'; |
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61 const PUFF = 'PUFF'; |
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62 const SECOND_PER_OHM = 'SECOND_PER_OHM'; |
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63 const STATFARAD = 'STATFARAD'; |
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64 const TERAFARAD = 'TERAFARAD'; |
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65 |
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66 /** |
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67 * Calculations for all capacitance units |
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68 * |
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69 * @var array |
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70 */ |
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71 protected $_units = array( |
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72 'ABFARAD' => array('1.0e+9', 'abfarad'), |
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73 'AMPERE_PER_SECOND_VOLT' => array('1', 'A/sV'), |
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74 'CENTIFARAD' => array('0.01', 'cF'), |
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75 'COULOMB_PER_VOLT' => array('1', 'C/V'), |
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76 'DECIFARAD' => array('0.1', 'dF'), |
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77 'DEKAFARAD' => array('10', 'daF'), |
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78 'ELECTROMAGNETIC_UNIT' => array('1.0e+9', 'capacity emu'), |
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79 'ELECTROSTATIC_UNIT' => array('1.11265e-12', 'capacity esu'), |
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80 'FARAD' => array('1', 'F'), |
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81 'FARAD_INTERNATIONAL' => array('0.99951', 'F'), |
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82 'GAUSSIAN' => array('1.11265e-12', 'G'), |
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83 'GIGAFARAD' => array('1.0e+9', 'GF'), |
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84 'HECTOFARAD' => array('100', 'hF'), |
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85 'JAR' => array('1.11265e-9', 'jar'), |
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86 'KILOFARAD' => array('1000', 'kF'), |
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87 'MEGAFARAD' => array('1000000', 'MF'), |
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88 'MICROFARAD' => array('0.000001', 'µF'), |
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89 'MILLIFARAD' => array('0.001', 'mF'), |
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90 'NANOFARAD' => array('1.0e-9', 'nF'), |
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91 'PICOFARAD' => array('1.0e-12', 'pF'), |
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92 'PUFF' => array('1.0e-12', 'pF'), |
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93 'SECOND_PER_OHM' => array('1', 's/Ohm'), |
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94 'STATFARAD' => array('1.11265e-12', 'statfarad'), |
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95 'TERAFARAD' => array('1.0e+12', 'TF'), |
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96 'STANDARD' => 'FARAD' |
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97 ); |
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98 } |