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1 | // Boost.Units - A C++ library for zero-overhead dimensional analysis and |
2 | // unit/quantity manipulation and conversion | |
3 | // | |
4 | // Copyright (C) 2003-2008 Matthias Christian Schabel | |
5 | // Copyright (C) 2008 Steven Watanabe | |
6 | // | |
7 | // Distributed under the Boost Software License, Version 1.0. (See | |
8 | // accompanying file LICENSE_1_0.txt or copy at | |
9 | // http://www.boost.org/LICENSE_1_0.txt) | |
10 | ||
11 | #ifndef BOOST_UNITS_CODATA_ELECTROMAGNETIC_CONSTANTS_HPP | |
12 | #define BOOST_UNITS_CODATA_ELECTROMAGNETIC_CONSTANTS_HPP | |
13 | ||
14 | /// | |
15 | /// \file | |
16 | /// \brief CODATA recommended values of fundamental electromagnetic constants. | |
17 | /// \details CODATA recommended values of the fundamental physical constants: NIST SP 961 | |
18 | /// CODATA 2006 values as of 2007/03/30 | |
19 | /// | |
20 | ||
21 | #include <boost/units/quantity.hpp> | |
22 | #include <boost/units/static_constant.hpp> | |
23 | ||
24 | #include <boost/units/systems/detail/constants.hpp> | |
25 | #include <boost/units/systems/si/conductance.hpp> | |
26 | #include <boost/units/systems/si/current.hpp> | |
27 | #include <boost/units/systems/si/electric_charge.hpp> | |
28 | #include <boost/units/systems/si/electric_potential.hpp> | |
29 | #include <boost/units/systems/si/energy.hpp> | |
30 | #include <boost/units/systems/si/frequency.hpp> | |
31 | #include <boost/units/systems/si/magnetic_flux.hpp> | |
32 | #include <boost/units/systems/si/magnetic_flux_density.hpp> | |
33 | #include <boost/units/systems/si/resistance.hpp> | |
34 | ||
35 | #include <boost/units/systems/si/codata/typedefs.hpp> | |
36 | ||
37 | namespace boost { | |
38 | ||
39 | namespace units { | |
40 | ||
41 | namespace si { | |
42 | ||
43 | namespace constants { | |
44 | ||
45 | namespace codata { | |
46 | ||
47 | // ELECTROMAGNETIC | |
48 | /// elementary charge | |
49 | BOOST_UNITS_PHYSICAL_CONSTANT(e,quantity<electric_charge>,1.602176487e-19*coulombs,4.0e-27*coulombs); | |
50 | /// elementary charge to Planck constant ratio | |
51 | BOOST_UNITS_PHYSICAL_CONSTANT(e_over_h,quantity<current_over_energy>,2.417989454e14*amperes/joule,6.0e6*amperes/joule); | |
52 | /// magnetic flux quantum | |
53 | BOOST_UNITS_PHYSICAL_CONSTANT(Phi_0,quantity<magnetic_flux>,2.067833667e-15*webers,5.2e-23*webers); | |
54 | /// conductance quantum | |
55 | BOOST_UNITS_PHYSICAL_CONSTANT(G_0,quantity<conductance>,7.7480917004e-5*siemens,5.3e-14*siemens); | |
56 | /// Josephson constant | |
57 | BOOST_UNITS_PHYSICAL_CONSTANT(K_J,quantity<frequency_over_electric_potential>,483597.891e9*hertz/volt,1.2e7*hertz/volt); | |
58 | /// von Klitzing constant | |
59 | BOOST_UNITS_PHYSICAL_CONSTANT(R_K,quantity<resistance>,25812.807557*ohms,1.77e-5*ohms); | |
60 | /// Bohr magneton | |
61 | BOOST_UNITS_PHYSICAL_CONSTANT(mu_B,quantity<energy_over_magnetic_flux_density>,927.400915e-26*joules/tesla,2.3e-31*joules/tesla); | |
62 | /// nuclear magneton | |
63 | BOOST_UNITS_PHYSICAL_CONSTANT(mu_N,quantity<energy_over_magnetic_flux_density>,5.05078324e-27*joules/tesla,1.3e-34*joules/tesla); | |
64 | ||
65 | } // namespace codata | |
66 | ||
67 | } // namespace constants | |
68 | ||
69 | } // namespace si | |
70 | ||
71 | } // namespace units | |
72 | ||
73 | } // namespace boost | |
74 | ||
75 | #endif // BOOST_UNITS_CODATA_ELECTROMAGNETIC_CONSTANTS_HPP |