| // Boost.Units - A C++ library for zero-overhead dimensional analysis and |
| // unit/quantity manipulation and conversion |
| // |
| // Copyright (C) 2003-2008 Matthias Christian Schabel |
| // Copyright (C) 2008 Steven Watanabe |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See |
| // accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| #ifndef BOOST_UNITS_CODATA_ELECTROMAGNETIC_CONSTANTS_HPP |
| #define BOOST_UNITS_CODATA_ELECTROMAGNETIC_CONSTANTS_HPP |
| |
| /// |
| /// \file |
| /// \brief CODATA recommended values of fundamental electromagnetic constants. |
| /// \details CODATA recommended values of the fundamental physical constants: NIST SP 961 |
| /// CODATA 2006 values as of 2007/03/30 |
| /// |
| |
| #include <boost/units/static_constant.hpp> |
| |
| #include <boost/units/systems/detail/constants.hpp> |
| #include <boost/units/systems/si/conductance.hpp> |
| #include <boost/units/systems/si/current.hpp> |
| #include <boost/units/systems/si/electric_charge.hpp> |
| #include <boost/units/systems/si/electric_potential.hpp> |
| #include <boost/units/systems/si/energy.hpp> |
| #include <boost/units/systems/si/frequency.hpp> |
| #include <boost/units/systems/si/magnetic_flux.hpp> |
| #include <boost/units/systems/si/magnetic_flux_density.hpp> |
| #include <boost/units/systems/si/resistance.hpp> |
| |
| #include <boost/units/systems/si/codata/typedefs.hpp> |
| |
| namespace boost { |
| |
| namespace units { |
| |
| namespace si { |
| |
| namespace constants { |
| |
| namespace codata { |
| |
| // ELECTROMAGNETIC |
| /// elementary charge |
| BOOST_UNITS_PHYSICAL_CONSTANT(e,quantity<electric_charge>,1.602176487e-19*coulombs,4.0e-27*coulombs); |
| /// elementary charge to Planck constant ratio |
| BOOST_UNITS_PHYSICAL_CONSTANT(e_over_h,quantity<current_over_energy>,2.417989454e14*amperes/joule,6.0e6*amperes/joule); |
| /// magnetic flux quantum |
| BOOST_UNITS_PHYSICAL_CONSTANT(Phi_0,quantity<magnetic_flux>,2.067833667e-15*webers,5.2e-23*webers); |
| /// conductance quantum |
| BOOST_UNITS_PHYSICAL_CONSTANT(G_0,quantity<conductance>,7.7480917004e-5*siemens,5.3e-14*siemens); |
| /// Josephson constant |
| BOOST_UNITS_PHYSICAL_CONSTANT(K_J,quantity<frequency_over_electric_potential>,483597.891e9*hertz/volt,1.2e7*hertz/volt); |
| /// von Klitzing constant |
| BOOST_UNITS_PHYSICAL_CONSTANT(R_K,quantity<resistance>,25812.807557*ohms,1.77e-5*ohms); |
| /// Bohr magneton |
| BOOST_UNITS_PHYSICAL_CONSTANT(mu_B,quantity<energy_over_magnetic_flux_density>,927.400915e-26*joules/tesla,2.3e-31*joules/tesla); |
| /// nuclear magneton |
| BOOST_UNITS_PHYSICAL_CONSTANT(mu_N,quantity<energy_over_magnetic_flux_density>,5.05078324e-27*joules/tesla,1.3e-34*joules/tesla); |
| |
| } // namespace codata |
| |
| } // namespace constants |
| |
| } // namespace si |
| |
| } // namespace units |
| |
| } // namespace boost |
| |
| #endif // BOOST_UNITS_CODATA_ELECTROMAGNETIC_CONSTANTS_HPP |
