public final class SI extends tech.units.indriya.unit.Units
This class defines all SI (Système International d'Unités) base units and derived units as well as units that are accepted for use with the SI units.
MetricPrefix
Modifier and Type | Field | Description |
---|---|---|
static javax.measure.Unit<si.uom.quantity.MagneticFieldStrength> |
AMPERE_PER_METRE |
The SI unit for magnetic field strength quantities (standard name
A/m" ). |
static tech.units.indriya.unit.AlternateUnit<si.uom.quantity.MagnetomotiveForce> |
AMPERE_TURN |
The SI unit for magnetomotive force (standard name
At ). |
static javax.measure.Unit<javax.measure.quantity.Length> |
ASTRONOMICAL_UNIT |
A length unit accepted for use with SI units (standard name
UA ). |
static javax.measure.Unit<javax.measure.quantity.Dimensionless> |
AVOGADRO_CONSTANT |
The Avogadro constant, named after scientist Amedeo Avogadro, is the number
of constituent particles, usually molecules, atoms or ions that are contained
in the amount of substance given by one mole.
|
static javax.measure.Unit<javax.measure.quantity.Dimensionless> |
BOLTZMANN_CONSTANT |
The Boltzmann constant (
kB or k ) is a physical
constant named after its discoverer, Ludwig Boltzmann, which relates the
average relative kinetic energy of particles in a gas with the temperature of
the gas and occurs in Planck's law of black-body radiation and in Boltzmann's
entropy formula. |
static javax.measure.Unit<si.uom.quantity.Luminance> |
CANDELA_PER_SQUARE_METRE |
Luminance is a photometric measure of the luminous intensity per unit area of
light travelling in a given direction.
|
static javax.measure.Unit<si.uom.quantity.IonizingRadiation> |
COULOMB_PER_KILOGRAM |
The SI unit for ionizing radiation quantities (standard name
C/kg" ). |
static javax.measure.Unit<javax.measure.quantity.Energy> |
ELECTRON_VOLT |
An energy unit accepted for use with SI units (standard name
eV ). |
static javax.measure.Unit<javax.measure.quantity.ElectricCharge> |
ELEMENTARY_CHARGE |
The elementary charge, usually denoted by
e or sometimes
qe , is the electric charge carried by a single proton or,
equivalently, the magnitude of the electric charge carried by a single
electron, which has charge −1 e. |
static javax.measure.Unit<si.uom.quantity.ElectricPermittivity> |
FARAD_PER_METRE |
The SI unit for electric permittivity (standard name
ε ,
F/m or F·m−1 ). |
static javax.measure.Unit<si.uom.quantity.Action> |
JOULE_SECOND |
The SI unit for action quantities (standard name
J.s ). |
static javax.measure.Unit<javax.measure.quantity.Acceleration> |
METRE_PER_SQUARE_SECOND |
The SI unit for acceleration quantities (standard name
m/s2 ). |
static javax.measure.Unit<si.uom.quantity.MagneticPermeability> |
NEWTON_PER_SQUARE_AMPERE |
The SI unit for magnetic permeability quantities (standard name
N/A2 ). |
static javax.measure.Unit<si.uom.quantity.DynamicViscosity> |
PASCAL_SECOND |
The SI unit for dynamic viscosity quantities (standard name
Pa.s ). |
static javax.measure.Unit<si.uom.quantity.Action> |
PLANCK_CONSTANT |
The Planck constant (denoted
ℎ , also called Planck's constant)
is a physical constant that is the quantum of electromagnetic action, which
relates the energy carried by a photon to its frequency. |
static javax.measure.Unit<si.uom.quantity.AngularSpeed> |
RADIAN_PER_SECOND |
The SI unit of angular speed (standard name
rad/s ). |
static javax.measure.Unit<si.uom.quantity.AngularAcceleration> |
RADIAN_PER_SQUARE_SECOND |
The SI unit of angular acceleration (standard name
rad/s² ). |
static javax.measure.Unit<si.uom.quantity.WaveNumber> |
RECIPROCAL_METRE |
The SI unit for wave number quantities (standard name
1/m ). |
static javax.measure.Unit<javax.measure.quantity.Angle> |
REVOLUTION |
An angle unit accepted for use with SI units (standard name
rev ). |
static javax.measure.Unit<si.uom.quantity.KinematicViscosity> |
SQUARE_METRE_PER_SECOND |
The SI unit for kinematic viscosity quantities (standard name
m2/s" ). |
static javax.measure.Unit<javax.measure.quantity.Mass> |
UNIFIED_ATOMIC_MASS |
A mass unit accepted for use with SI units (standard name
u ). |
static javax.measure.Unit<si.uom.quantity.Intensity> |
WATT_PER_SQUARE_METRE |
The SI unit for intensity (standard name
W/m2 ). |
static javax.measure.Unit<si.uom.quantity.RadiantIntensity> |
WATT_PER_STERADIAN |
The SI unit for radiant intensity (standard name
W/sr ). |
static javax.measure.Unit<si.uom.quantity.Radiance> |
WATT_PER_STERADIAN_PER_SQUARE_METRE |
The SI unit for radiance (standard name
W⋅sr−1⋅m−2 ). |
E, logger, quantityToUnit, units
AMPERE, BECQUEREL, CANDELA, CELSIUS, COULOMB, CUBIC_METRE, DAY, FARAD, GRAM, GRAY, HENRY, HERTZ, HOUR, JOULE, KATAL, KELVIN, KILOGRAM, KILOMETRE_PER_HOUR, LITRE, LUMEN, LUX, METRE, METRE_PER_SECOND, MINUTE, MOLE, NEWTON, OHM, PASCAL, PERCENT, RADIAN, SECOND, SIEMENS, SIEVERT, SQUARE_METRE, STERADIAN, TESLA, VOLT, WATT, WEBER, WEEK, YEAR
Modifier and Type | Method | Description |
---|---|---|
static SI |
getInstance() |
Returns the singleton instance of this class.
|
String |
getName() |
public static final tech.units.indriya.unit.AlternateUnit<si.uom.quantity.MagnetomotiveForce> AMPERE_TURN
At
).public static final javax.measure.Unit<javax.measure.quantity.Acceleration> METRE_PER_SQUARE_SECOND
m/s2
).public static final javax.measure.Unit<si.uom.quantity.Action> JOULE_SECOND
J.s
).public static final javax.measure.Unit<si.uom.quantity.ElectricPermittivity> FARAD_PER_METRE
ε
,
F/m
or F·m−1
). In electromagnetism, absolute
permittivity is the measure of resistance that is encountered when forming an
electric field in a medium.public static final javax.measure.Unit<si.uom.quantity.MagneticPermeability> NEWTON_PER_SQUARE_AMPERE
N/A2
).public static final javax.measure.Unit<si.uom.quantity.WaveNumber> RECIPROCAL_METRE
1/m
).public static final javax.measure.Unit<si.uom.quantity.DynamicViscosity> PASCAL_SECOND
Pa.s
).public static final javax.measure.Unit<si.uom.quantity.Luminance> CANDELA_PER_SQUARE_METRE
cd/m2
).public static final javax.measure.Unit<si.uom.quantity.KinematicViscosity> SQUARE_METRE_PER_SECOND
m2/s"
).public static final javax.measure.Unit<si.uom.quantity.MagneticFieldStrength> AMPERE_PER_METRE
A/m"
).public static final javax.measure.Unit<si.uom.quantity.IonizingRadiation> COULOMB_PER_KILOGRAM
C/kg"
).public static final javax.measure.Unit<si.uom.quantity.RadiantIntensity> WATT_PER_STERADIAN
W/sr
).public static final javax.measure.Unit<si.uom.quantity.Radiance> WATT_PER_STERADIAN_PER_SQUARE_METRE
W⋅sr−1⋅m−2
).public static final javax.measure.Unit<si.uom.quantity.Intensity> WATT_PER_SQUARE_METRE
W/m2
).public static final javax.measure.Unit<si.uom.quantity.AngularSpeed> RADIAN_PER_SECOND
rad/s
).AngularSpeed
public static final javax.measure.Unit<si.uom.quantity.AngularAcceleration> RADIAN_PER_SQUARE_SECOND
rad/s²
).AngularAcceleration
public static final javax.measure.Unit<javax.measure.quantity.Energy> ELECTRON_VOLT
eV
). The electronvolt is the kinetic energy acquired by an
electron passing through a potential difference of 1 V in vacuum. The value
must be obtained by experiment, and is therefore not known exactly.public static final javax.measure.Unit<javax.measure.quantity.Mass> UNIFIED_ATOMIC_MASS
u
).
The unified atomic mass unit is equal to 1/12 of the mass of an unbound atom
of the nuclide 12C, at rest and in its ground state. The value must be
obtained by experiment, and is therefore not known exactly.public static final javax.measure.Unit<javax.measure.quantity.Length> ASTRONOMICAL_UNIT
UA
).
The astronomical unit is a unit of length.
Originally conceived as the average of Earth's aphelion and perihelion,
since 2012 it has been defined as exactly 149,597,870,700 metres,
or about 150 million kilometres (93 million miles).public static final javax.measure.Unit<javax.measure.quantity.Angle> REVOLUTION
rev
).public static final javax.measure.Unit<javax.measure.quantity.Dimensionless> AVOGADRO_CONSTANT
NA
or L
, and has the
value 6.022140857(74)×1023 mol−1 in the International System of Units (SI).public static final javax.measure.Unit<javax.measure.quantity.Dimensionless> BOLTZMANN_CONSTANT
kB
or k
) is a physical
constant named after its discoverer, Ludwig Boltzmann, which relates the
average relative kinetic energy of particles in a gas with the temperature of
the gas and occurs in Planck's law of black-body radiation and in Boltzmann's
entropy formula.public static final javax.measure.Unit<javax.measure.quantity.ElectricCharge> ELEMENTARY_CHARGE
e
or sometimes
qe
, is the electric charge carried by a single proton or,
equivalently, the magnitude of the electric charge carried by a single
electron, which has charge −1 e. This elementary charge is a fundamental
physical constant. To avoid confusion over its sign, e is sometimes called
the elementary positive charge.public static final javax.measure.Unit<si.uom.quantity.Action> PLANCK_CONSTANT
ℎ
, also called Planck's constant)
is a physical constant that is the quantum of electromagnetic action, which
relates the energy carried by a photon to its frequency. A photon's energy is
equal to its frequency multiplied by the Planck constant. The Planck constant
is of fundamental importance in quantum mechanics, and in metrology it is the
basis for the definition of the kilogram.public static SI getInstance()
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