11.1.12.1. SiUnits

This module defines SI prefixes and units.

class PySpice.Unit.SiUnits.Ampere(si_unit=None)

Bases: PySpice.Unit.Unit.SiBaseUnit

QUANTITY = 'electric current'

SI_UNIT = SiDerivedUnit(A)

UNIT_NAME = 'ampere'

UNIT_SUFFIX = 'A'

class PySpice.Unit.SiUnits.Atto

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -18

PREFIX = 'a'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Becquerel(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

QUANTITY = 'radioactivity (decays per unit time)'

SI_UNIT = SiDerivedUnit(s^-1)

UNIT_NAME = 'becquerel'

UNIT_SUFFIX = 'Bq'

class PySpice.Unit.SiUnits.Candela(si_unit=None)

Bases: PySpice.Unit.Unit.SiBaseUnit

QUANTITY = 'luminosity intensity'

SI_UNIT = SiDerivedUnit(cd)

UNIT_NAME = 'candela'

UNIT_SUFFIX = 'cd'

class PySpice.Unit.SiUnits.Coulomb(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'electric charge'

SI_UNIT = SiDerivedUnit(s*A)

UNIT_NAME = 'coulomb'

UNIT_SUFFIX = 'C'

class PySpice.Unit.SiUnits.Deca

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 1

PREFIX = 'da'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.DegreeCelcius(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

QUANTITY = 'temperature relative to 273.15 K'

SI_UNIT = SiDerivedUnit(K)

UNIT_NAME = 'degree celcuis'

UNIT_SUFFIX = '°C'

class PySpice.Unit.SiUnits.Exa

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 18

PREFIX = 'E'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Farad(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'capacitance'

SI_UNIT = SiDerivedUnit(m^-2*kg^-1*s^4*A^2)

UNIT_NAME = 'farad'

UNIT_SUFFIX = 'F'

class PySpice.Unit.SiUnits.Femto

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -15

PREFIX = 'f'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Giga

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 9

PREFIX = 'G'

class PySpice.Unit.SiUnits.Gray(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

QUANTITY = 'absorbed dose (of ionizing radiation)'

SI_UNIT = SiDerivedUnit(m^2*s^-2)

UNIT_NAME = 'gray'

UNIT_SUFFIX = 'Gy'

class PySpice.Unit.SiUnits.Hecto

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 2

PREFIX = 'h'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Henry(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'inductance'

SI_UNIT = SiDerivedUnit(m^2*kg*s^-2*A^-2)

UNIT_NAME = 'henry'

UNIT_SUFFIX = 'H'

class PySpice.Unit.SiUnits.Hertz(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'frequency'

SI_UNIT = SiDerivedUnit(s^-1)

UNIT_NAME = 'frequency'

UNIT_SUFFIX = 'Hz'

class PySpice.Unit.SiUnits.Joule(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'energy'

SI_UNIT = SiDerivedUnit(m^2*kg*s^-2)

UNIT_NAME = 'joule'

UNIT_SUFFIX = 'J'

class PySpice.Unit.SiUnits.Katal(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'catalytic activity'

SI_UNIT = SiDerivedUnit(s^-1*mol)

UNIT_NAME = 'katal'

UNIT_SUFFIX = 'kat'

class PySpice.Unit.SiUnits.Kelvin(si_unit=None)

Bases: PySpice.Unit.Unit.SiBaseUnit

QUANTITY = 'thermodynamic temperature'

SI_UNIT = SiDerivedUnit(K)

UNIT_NAME = 'kelvin'

UNIT_SUFFIX = 'K'

class PySpice.Unit.SiUnits.Kilo

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 3

PREFIX = 'k'

class PySpice.Unit.SiUnits.Kilogram(si_unit=None)

Bases: PySpice.Unit.Unit.SiBaseUnit

QUANTITY = 'mass'

SI_UNIT = SiDerivedUnit(kg)

UNIT_NAME = 'kilogram'

UNIT_SUFFIX = 'kg'

class PySpice.Unit.SiUnits.Lumen(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

QUANTITY = 'luminous flux'

SI_UNIT = SiDerivedUnit(cd)

UNIT_NAME = 'lumen'

UNIT_SUFFIX = 'lm'

class PySpice.Unit.SiUnits.Lux(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'illuminance'

SI_UNIT = SiDerivedUnit(m^-2*cd)

UNIT_NAME = 'lux'

UNIT_SUFFIX = 'lx'

class PySpice.Unit.SiUnits.Mega

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 6

PREFIX = 'M'

SPICE_PREFIX = 'Meg'

class PySpice.Unit.SiUnits.Metre(si_unit=None)

Bases: PySpice.Unit.Unit.SiBaseUnit

QUANTITY = 'length'

SI_UNIT = SiDerivedUnit(m)

UNIT_NAME = 'metre'

UNIT_SUFFIX = 'm'

class PySpice.Unit.SiUnits.Micro

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -6

PREFIX = 'μ'

SPICE_PREFIX = 'u'

class PySpice.Unit.SiUnits.Milli

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -3

PREFIX = 'm'

class PySpice.Unit.SiUnits.Mole(si_unit=None)

Bases: PySpice.Unit.Unit.SiBaseUnit

QUANTITY = 'amount of substance'

SI_UNIT = SiDerivedUnit(mol)

UNIT_NAME = 'mole'

UNIT_SUFFIX = 'mol'

class PySpice.Unit.SiUnits.Nano

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -9

PREFIX = 'n'

class PySpice.Unit.SiUnits.Newton(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'force'

SI_UNIT = SiDerivedUnit(m*kg*s^-2)

UNIT_NAME = 'newton'

UNIT_SUFFIX = 'N'

class PySpice.Unit.SiUnits.Ohm(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'electric resistance, impedance, reactance'

SI_UNIT = SiDerivedUnit(m^2*kg*s^-3*A^-2)

UNIT_NAME = 'ohm'

UNIT_SUFFIX = 'Ω'

class PySpice.Unit.SiUnits.Pascal(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'pressure'

SI_UNIT = SiDerivedUnit(m^-1*kg*s^-2)

UNIT_NAME = 'pascal'

UNIT_SUFFIX = 'Pa'

class PySpice.Unit.SiUnits.Peta

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 15

PREFIX = 'P'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Pico

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -12

PREFIX = 'p'

class PySpice.Unit.SiUnits.Radian(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'angle'

SI_UNIT = SiDerivedUnit()

UNIT_NAME = 'radian'

UNIT_SUFFIX = 'rad'

class PySpice.Unit.SiUnits.Second(si_unit=None)

Bases: PySpice.Unit.Unit.SiBaseUnit

IS_SI = True

QUANTITY = 'time'

SI_UNIT = SiDerivedUnit(s)

UNIT_NAME = 'second'

UNIT_SUFFIX = 's'

class PySpice.Unit.SiUnits.Siemens(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'electrical conductance'

SI_UNIT = SiDerivedUnit(m^-2*kg^-1*s^3*A^2)

UNIT_NAME = 'siemens'

UNIT_SUFFIX = 'S'

class PySpice.Unit.SiUnits.Sievert(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

QUANTITY = ' equivalent dose (of ionizing radiation)'

SI_UNIT = SiDerivedUnit(m^2*s^-2)

UNIT_NAME = 'sievert'

UNIT_SUFFIX = 'Sv'

class PySpice.Unit.SiUnits.Steradian(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'solid angle'

SI_UNIT = SiDerivedUnit()

UNIT_NAME = 'steradian'

UNIT_SUFFIX = 'sr'

class PySpice.Unit.SiUnits.Tera

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 12

PREFIX = 'T'

class PySpice.Unit.SiUnits.Tesla(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'T'

SI_UNIT = SiDerivedUnit(kg*s^-2*A^-1)

UNIT_NAME = 'tesla'

UNIT_SUFFIX = ''

class PySpice.Unit.SiUnits.Volt(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'voltage'

SI_UNIT = SiDerivedUnit(m^2*kg*s^-3*A^-1)

UNIT_NAME = 'volt'

UNIT_SUFFIX = 'V'

class PySpice.Unit.SiUnits.Watt(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'power'

SI_UNIT = SiDerivedUnit(m^2*kg*s^-3)

UNIT_NAME = 'watt'

UNIT_SUFFIX = 'W'

class PySpice.Unit.SiUnits.Weber(si_unit=None)

Bases: PySpice.Unit.Unit.Unit

DEFAULT_UNIT = True

QUANTITY = 'magnetic flux'

SI_UNIT = SiDerivedUnit(m^2*kg*s^-2*A^-1)

UNIT_NAME = 'weber'

UNIT_SUFFIX = 'Wb'

class PySpice.Unit.SiUnits.Yocto

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -24

PREFIX = 'y'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Yotta

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 24

PREFIX = 'Y'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Zepto

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = -21

PREFIX = 'z'

SPICE_PREFIX = None

class PySpice.Unit.SiUnits.Zetta

Bases: PySpice.Unit.Unit.UnitPrefix

POWER = 21

PREFIX = 'Z'

SPICE_PREFIX = None