پرش به محتوا

میلتلرآراسی بیریملر سیستمی: نوسخه‌لر آراسینداکی فرق

ویکی‌پدیادان، آچیق بیلیک‌لیک‌دن
محتوای حذف‌شده محتوای افزوده‌شده
صفحه‌‌نی ' فایل:SI base units.svg|بندانگشتی|اِس‌آی اصلی بیریملری {| |- ! سیمگه !! آد !! کمیّت |- | style="text-ali...' ایله ياراتدی
فرقیسیز

۱۴ دسامبر ۲۰۱۸، ساعت ۱۸:۴۴ نوسخه‌سی

اِس‌آی اصلی بیریملری
سیمگه آد کمیّت
A آمپر الکتریک آخیمی
K کلوین دما
s ثانیه زامان
m متر اۇزونلوق
kg کیلوقرام کۆتله
cd کاندلا ایشیق شیدّتی
mol موْل مادّه میقداری

میلتلر آراسی بیریملر سیستمی یوخسا میلتلر آراسی واحیدلر سیستمی (اینگیلیسجه: International System of Units و فرانسیزجا: Le Système International d'Unités)، قیسا اولاراق «اِس‌آی» (SI) - ‏۱۹۶۰-جی ایل «آغیرلیق‌لار و اؤلچۆلر» کوْنفرانسیندا تانیملانان بیر اؤلچو سیستمی دیر. اِس‌آی سیستمی، متریک سیستمی‌نین موعاصیرلشمیش فوْرمو کیمی تانینیر و دۆنیادا اَن چوْخ ایشله‌نن اؤلچۆ سیستمی دیر. اِس‌آی سیستمی‌نین ۷ اصلی بیریمی آمپر، کلوین، ثانیه، متر، کیلوقرام، کاندلا و موْل دور. بو اؤلچو سیستمینده اصلی بیریملرین یانیندا، ۲۲ فرعی بیریم ده واردیر.

بیریملر

اصلی بیریملر

اِس‌آی اصلی بیریملری[۱]:۲۳[۲][۳]
بیریم
آدی
بیریم
سیمگه‌سی
کمیّت
سیمگه‌سی
کمیّت
آدی
تعریف[n ۱]
متر m L اۇزونلوق
  • Prior (1793): 1/10000000 of the meridian through Paris between the North Pole and the Equator.FG
  • Interim (1960): 1650763.73 wavelengths in a vacuum of the radiation corresponding to the transition between the 2p10 and 5d5 quantum levels of the krypton-86 atom.
  • Current (1983): The distance travelled by light in vacuum in 1/299792458 second.
کیلوقرام[n ۲] kg M کۆتله
  • Prior (1793): The grave was defined as being the mass (then called weight) of one litre of pure water at its freezing point.FG
  • Current (1889): The mass of a small squat cylinder of ~47 cubic centimetres of platinum-iridium alloy kept in the Pavillon de Breteuil[نیازمند منبع], France. Also, in practice, any of numerous official replicas of it.[Note ۱][۴]
  • Future (2019): The kilogram will be defined by taking the Planck constant h as exactly 6.62607015×10−34 J⋅s (J = kg⋅m2⋅s−2), given the definitions of the metre and the second.[۵][۶]
ثانیه s T زامان
  • Prior: 1/86400 of a day of 24 hours of 60 minutes of 60 seconds
  • Interim (1956): 1/31556925.9747 of the tropical year for 1900 January 0 at 12 hours ephemeris time.
  • Current (1967): The duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom.
آمپر A I الکتریک آخیمی
  • Prior (1881): A tenth of the electromagnetic CGS unit of current. The [CGS] electromagnetic unit of current is that current, flowing in an arc 1 cm long of a circle 1 cm in radius, that creates a field of one oersted at the centre.[۷] IEC
  • Current (1946): The constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 m apart in vacuum, would produce between these conductors a force equal to 2×10−7 newtons per metre of length.
  • Future (2019): The ampere will be defined by taking the fixed numerical value of the elementary charge e to be 1.602176634×10−19 C (C = A⋅s), given the definition of the second.
کلوین K Θ ترمودینامیک دما
  • Prior (1743): The centigrade scale is obtained by assigning 0 °C to the freezing point of water and 100 °C to the boiling point of water.
  • Interim (1954): The triple point of water (0.01 °C) defined to be exactly 273.16 K.[n ۳]
  • Current (1967): 1/273.16 of the thermodynamic temperature of the triple point of water
  • Future (2019): The kelvin will be defined by taking the fixed numerical value of the Boltzmann constant k to be 1.380649×10−23 J⋅K−1, (J = kg⋅m2⋅s−2), given the definition of the kilogram, the metre and the second.
موْل mol N مادّه میقداری
  • Prior (1900): A stoichiometric quantity which is the equivalent mass in grams of Avogadro's number of molecules of a substance.ICAW
  • Current (1967): The amount of substance of a system which contains as many elementary entities[n ۴] as there are atoms in 0.012 kilogram of carbon-12.
  • Future (2019): The amount of substance of exactly 6.02214076×1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, NA, when expressed in the unit mol−1 and is called the Avogadro number.
کاندلا cd J ایشیق شیدّتی
  • Prior (1946): The value of the new candle is such that the brightness of the full radiator at the temperature of solidification of platinum is 60 new candles per square centimetre.
  • Current (1979): The luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 5.4×1014 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.
Note: both old and new definitions are approximately the luminous intensity of a whale blubber candle burning modestly bright, in the late 19th century called a "candlepower" or a "candle".
آچیقلامالار
  1. ^ Interim definitions are given here only when there has been a significant difference in the definition.
  2. ^ Despite the prefix "kilo-", the kilogram is the base unit of mass. The kilogram, not the gram, is the coherent unit and is used in the definitions of derived units. Nonetheless, prefixes are determined as if the gram were the base unit of mass.
  3. ^ In 1954 the unit of thermodynamic temperature was known as the "degree Kelvin" (symbol °K; "Kelvin" spelt with an upper-case "K"). It was renamed the "kelvin" (symbol "K"; "kelvin" spelt with a lower case "k") in 1967.
  4. ^ When the mole is used, the elementary entities must be specified and may be atoms, molecules, ions, electrons, other particles, or specified groups of such particles.

The Prior definitions of the various base units in the above table were made by the following authorities:

All other definitions result from resolutions by either CGPM or the CIPM and are catalogued in the SI Brochure.

فرعی بیریملر

اؤزل آدی اوْلان اِس‌آی فرعی بیریملری[۱]
Nameنوْت 1 سیمگه کمیّت باشقا اس‌آی بیریملری
ایله تعریفی
اصلی اس‌آی بیریملری
ایله تعریفی
رادیاننوْت 2 rad آچی (زاویه) (m⋅m−1)
ایسترادیاننوْت 2 sr فضایی آچی (m2⋅m−2)
هرتز Hz فرکانس s−1
نیوتون N گۆج، آغیرلیق kg⋅m⋅s−2
پاسکال Pa باسقی، گرگینلیک N/m2 kg⋅m−1⋅s−2
ژول J انرژی، ایش، ایستی‌لیک N⋅m = Pa⋅m3 kg⋅m2⋅s−2
وات W power, radiant flux J/s kg⋅m2⋅s−3
کۇلوْن C الکتریک یۆکو s⋅A
ووْلت V ووْلتاژ، الکتروموتور گۆجو W/A kg⋅m2⋅s−3⋅A−1
فاراد F الکتریک تۇتومو C/V kg−1⋅m−2⋅s4⋅A2
ohm Ω resistance, impedance, reactance V/A kg⋅m2⋅s−3⋅A−2
siemens S electrical conductance Ω−1 kg−1⋅m−2⋅s3⋅A2
weber Wb magnetic flux V⋅s kg⋅m2⋅s−2⋅A−1
tesla T magnetic flux density Wb/m2 kg⋅s−2⋅A−1
henry H inductance Wb/A kg⋅m2⋅s−2⋅A−2
degree Celsius °C temperature relative to 273.15 K K
lumen lm luminous flux cd⋅sr cd
lux lx illuminance lm/m2 m−2⋅cd
becquerel Bq radioactivity (decays per unit time) s−1
gray Gy absorbed dose (of ionising radiation) J/kg m2⋅s−2
sievert Sv equivalent dose (of ionising radiation) J/kg m2⋅s−2
katal kat catalytic activity mol⋅s−1
آچیقلامالار (نوْتلار)
1. The table is ordered so that a derived unit is listed after the units upon which its definition depends.
2. The radian and steradian are defined as dimensionless derived units.

قایناقلار

  1. ^ ۱٫۰ ۱٫۱ قایناق خطاسی برچسب <ref> نامعتبر؛ متنی برای ارجاع‌های با نام NIST330 وارد نشده است
  2. ^ Quantities Units and Symbols in Physical Chemistry, IUPAC
  3. ^ Page, Chester H.; Vigoureux, Paul, eds. (1975-05-20). The International Bureau of Weights and Measures 1875–1975: NBS Special Publication 420. Washington, D.C.: National Bureau of Standards. pp. 238–244.
  4. ^ Secula, Erik M. (7 October 2014). Redefining the Kilogram, The Past. یوْخلانیلیب22 August 2017.
  5. ^ Draft Resolution A "On the revision of the International System of units (SI)" to be submitted to the CGPM at its 26th meeting (2018) (PDF)
  6. ^ If you thought a kilogram weighed a kilogram, you were wrong (and the definition is about to change) (2018-11-15).
  7. ^ McKenzie, A. E. E. (1961). Magnetism and Electricity. Cambridge University Press. p. 322.


قایناق خطاسی برچسب <ref> برای گروهی به نام «Note» وجود دارد، اما برچسب متناظر با <references group="Note"/> یافت نشد.