بار

بار
معلومات عامة
النوع
تستخدم لقياس
رمز الوحدة
  • bar (بالإنجليزية)[1]
  • бар (بالروسية) عدل القيمة على Wikidata
تحويلات الوحدة
إلى النظام الدولي
  • 100000 باسكال عدل القيمة على Wikidata
  • الوحدة القياسية
      القائمة ...
  • 100000 باسكال
  • 14.50377 رطل لكل بوصة مربعة
  • 0.9869233 جو
  • 29.52998 inch of mercury (en) ترجم
  • 401.4631 بوصة من الماء
  • 10197.16 مليمتر ماء
  • 750.0616 مليمتر زئبق
  • 2088.543 Psf (en) ترجم
  • 10197.16 kilogram-force per square metre (en) ترجم
  • 1000 ميلي بار[2] عدل القيمة على Wikidata
  • بار(Bar) وحده قياس للضغط لا تتبع النظام الدولي للوحدات.[3][4][5] وتساوي تقريباً مقدار 1 ضغط جوي عادي عند سطح البحر. وتساوي 100 كيلوباسكال.

    • ويجزء البار إلى 1000 مللي بار. (1 بار = 1000 مللي بار).

    مراجع

    1. ^ مذكور في: أنطولوجية وحدات القياس 1.8.
    2. ^ Great Soviet Encyclopedia. Volume 4, 1926 (بالروسية). {{استشهاد بدورية محكمة}}: الوسيط |title= غير موجود أو فارغ (help)
    3. ^ Bar ou Pascal ?, sur jeretiens.net, consulté le 16 décembre 2017 نسخة محفوظة 16 ديسمبر 2017 على موقع واي باك مشين.
    4. ^ "What do the letters 'g' and 'a' denote after a pressure unit? (FAQ - Pressure) : FAQs : Reference : National Physical Laboratory". مؤرشف من الأصل في 2017-12-26. اطلع عليه بتاريخ 2016-02-07.
    5. ^ Nomenclature of the unit of absolut pressure, Charles F. Marvin, 1918 نسخة محفوظة 29 أبريل 2017 على موقع واي باك مشين.
    وحدات الضغط
     
    باسكال
    (Pa)

    بار
    (bar)
    ضغط جوي تقني
    (at)

    ضغط جوي
    (atm)

    ميلليمتر زئبق
    (Torr)
    باوند ثقلي في البوصة المربعة
    (psi)
    1 باسكال ≡ 1 نيوتن/م2 10−5 1.0197×10−5 9.8692×10−6 7.5006×10−3 145.04×10−6
    1 بار 100,000 ≡ 106 داين/سم2 1.0197 0.98692 750.06 14.5037744
    1 ضغط جوي تقني 98,066.5 0.980665 ≡ 1 كجم ق/سم2 0.96784 735.56 14.223
    1 ضغط جوي 101,325 1.01325 1.0332 ≡ 1 ضغط جوي 760 14.696
    1 ميلليمتر زئبق 133.322 1.3332×10−3 1.3595×10−3 1.3158×10−3 1ميلليمتر زئبق=1Torr 19.337×10−3
    1 باوند ثقلي في البوصة المربعة 6,894.76 68.948×10−3 70.307×10−3 68.046×10−3 51.715 ≡ 1 psi
    باسكال ≡ 1 نيوتن/م2 ≡ 1 جول/م3 ≡ 1 كجم/(م1·ثانية2)≡ 10−5 بار   ≡ 10.197×10−6 ضغط جوي   ≡ 9.8692×10−6 ضغط جوي تقني


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