pound per square inch

ポンド毎平方インチ

関

psi

WordNet

1. the 23rd letter of the Greek alphabet
2. raise to the second power
3. (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon; "you can compute the area of a square if you know the length of its sides" (同)foursquare
4. the product of two equal terms; "nine is the second power of three"; "gravity is inversely proportional to the square of the distance" (同)second power
5. make square; "Square the circle"; "square the wood with a file" (同)square_up
6. something approximating the shape of a square
7. a hand tool consisting of two straight arms at right angles; used to construct or test right angles; "the carpenter who built this room must have lost his square"
8. any artifact having a shape similar to a plane geometric figure with four equal sides and four right angles; "a checkerboard has 64 squares"
9. someone who doesnt understand what is going on (同)lame
10. a formal and conservative person with old-fashioned views (同)square toes
11. rigidly conventional or old-fashioned (同)straight
12. without evasion or compromise; "a square contradiction"; "he is not being as straightforward as it appears" (同)straightforward, straight
13. be compatible with; "one idea squares with another"
14. cause to match, as of ideas or acts
15. having four equal sides and four right angles or forming a right angle; "a square peg in a round hole"; "a square corner"
16. leaving no balance; "my account with you is now all square"
17. pay someone and settle a debt; "I squared with him"
18. position so as to be square; "He squared his shoulders"
19. shut up or confine in any enclosure or within any bounds or limits; "The prisoners are safely pounded" (同)pound up
20. 16 ounces avoirdupois; "he got a hernia when he tried to lift 100 pounds" (同)lb
21. a nontechnical unit of force equal to the mass of 1 pound with an acceleration of free fall equal to 32 feet/sec/sec (同)lbf.
22. a unit of apothecary weight equal to 12 ounces troy
23. break down and crush by beating, as with a pestle; "pound the roots with a heavy flat stone"
24. a public enclosure for stray or unlicensed dogs; "unlicensed dogs will be taken to the pound" (同)dog pound
25. a symbol for a unit of currency (especially for the pound sterling in Great Britain) (同)pound sign
26. partition off into compartments; "The locks pound the water of the canal" (同)pound off
27. holding office; "the in party"
28. to or toward the inside of; "come in"; "smash in the door" (同)inwards, inward
29. currently fashionable; "the in thing to do"; "large shoulder pads are in"
30. directed or bound inward; "took the in bus"; "the in basket"
31. a unit of length equal to one twelfth of a foot (同)in

PrepTutorEJDIC

1. プシー(ギリシア語アルファベットの第23字Ψ,ψ;英語のpsに相当)
2. 『正方形』;四角な物;(チェス・チェッカーなどの盤の,正方形の)目,ます目 / (四角い)『広場』(街路の交差点にあって,しばしば中央に植木や芝などが植えてあり,小公園になっている);《おもに英》広場の回りの建物(街路)(《略》Sq.) / (四方を街路で囲まれた方形の)一区画,ブロック / 直角定規,かね尺 / (数の)『2乗』,平方(《略》sq.) / 《俗》旧式な人 / 『正方形の』,四角な,直角の,直角をなす / 角ばった,がっかりした / 『平方の』,2乗の(《略》『sq.』) / 《補語にのみ用いて》対等の,五分五分の(even);貸し借りにない / 正直な(honest),公正な(fair),正しい(just) / 率直な,はっきりした,きっぱりした(direct) / 実質のある,十分な / 《俗》しゃちほこばった / =squarely / …‘を'正方形(四角)にする;直角にする / …‘を'正方形(四角)に区切る《+『off』+『名』,+『名』+『off』》 / 〈肩・ひじなど〉‘を'張る / (人と)〈勘定〉‘を'決済する,清算する《+『名』〈勘定〉+『with』+『名』〈人〉》 / (…と)…‘を'一致させる,適合させる《+『名』+『with』+『名』》 / 《受動態で》〈数〉‘を'2乗する;〈ある形・図形など〉‘の'平方積(面積)を求める / 〈人〉‘を'買収する,抱き込む,…‘に'わいろを使う / 〈試合の得点〉‘を'同点にする / (…と)一致する,適合する《+『with』+『名』》
3. 『ポンド』(一般に商業で用いられる重量の単位;16オンス;約453.6グラム;{略}『1b.』) / ポンド(英国・アイルランドなどの貨幣の単位(pound sterling)およびその紙幣;もと20シリング(=240ペンス);1971年2月以後は100ペンス;{略}￡) / トロイポンド(金・銀の重量単位;373.2グラム)
4. (…で)…‘を'『強く打つ』,連打する《+名+with+名》 / (…になるまで)…‘を'打ち砕く,たたきつぶす《『+名+into(to)+名』》 / (…を)『強く打つ』,連打する《『+at(on, against)+名』》 / 〈心臓などが〉激しく鼓動する / 《副詞[句]を伴って》ドスンドスンと歩く
5. (動物,特に捨て犬・猫の)囲い檻(おり),収容所
6. 《具体的な場所,位置》 / …『の中に』(『で』) / …『において』,…で / 《intoの代りに移動を表す動詞と共に》…『の中へ』 / (乗り物)『に乗って』 / …『の状熊に』(『で』) / …『に従事して』,に属して / …『を身につけて』,に覆われて / 《『in』do『ing』の形で》…『するときに』,する際に(when) / 《時間》 / …『して』,…『が経過したあと』 / …『の間に』 / …『については』,…の点では / 《方法・手段・材料》…『で』 / 《人を目的語にして,性質・能力があることを示して》…の中に / …の目的で,のつもりで,として / 《比率割合》…のうちで,につき / 《過去分詞に伴って》…に[…されて] / 『中へ』(に) / 『在宅して』,帰って / (乗り物などが)『到着して』,(時期・季節が)来て / 出回って,流行して / 《俗》流行の,当世風の / 《話》特定の人々にのみ理解される
7. 『インチ』(尺度の単位で1/12foot,2.54u;《略》『in.,in』) / わずかな距離,少量,少額,少し / 《まれ》《複数形で》身長,背たけ / …‘を'少しずつ動かす / 少しずつ動く
8. …『につき』,…ごとに / 《文》…によって,…で,…を通じて / 《しばしば『as per』…で》…によって示された通りに,…に従って

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/12/14 22:27:09」(JST)

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[Wiki en表示]

A pressure gauge reading in psi (red scale) and kPa (black scale)

The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lb_f/in² or lbf/sq in or lb_f/sq in)/ pressure per square inch is a unit of pressure or of stress based on avoirdupois units. It has been largely replaced by the pascal. It is the pressure resulting from a force of one pound-force applied to an area of one square inch:

Using unit conversion:

1 psi = ≈ 6894.757293168 N/m²

Therefore, one pound per square inch is approximately 6894.757 Pa.

Now converting the psi to standard atmospheres:

$\frac{1 \text{ psi}}{ 6894.757293 \text{ Pa}} \cdot \frac{1.01325 \text { x} \ 10^5 \text{ Pa}}{1 \text{ atm}}$ ≈ 14.69594877551 psi/atm

Therefore, 1 atmosphere is approximately 14.696 pounds per square inch.

Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around 14.7 psi, this will be added to any pressure reading made in air at sea level. The converse is pounds per square inch gauge or pounds per square inch gage (psig), indicating that the pressure is relative to atmospheric pressure. For example a bicycle tire pumped up to 65 psi above atmospheric pressure, will have a pressure of 65 + 14.7 = 79.7 psia or 65 psig.

ksi

The kilopound per square inch is a scaled unit derived from psi, equivalent to a thousand psi.

ksi are not widely used for gas pressures. They are mostly used in materials science, where the tensile strength of a material is measured as a large number of psi.

Magnitude

Main article: Orders of magnitude (pressure)

In liquid: pressure per square inch (psi)

• Blood Pressure – Average human blood pressure (120/80): 2.32 psi/1.55 psi
• Water jet cutter: 40,000–100,000 psi
• Commercial jet airliner hydraulic pressure: 3000 psi
• Boost Pressure Provided By an Automotive Turbocharger(common):P_g = 6–15 psi
• Atmospheric pressure at sea level (standard): P_a = 14.7 psi
• Automobile tyre overpressure (common): P_g = 32 psi
• Bicycle tyre overpressure (common): P_g = 65 psi
• Workshop or garage air tools: P_g = 90 psi
• Air brake (rail) or Air brake (road vehicle) reservoir overpressure (common): 90 psi ≤ P_g ≤ 120 psi
• Road racing bicycle tire overpressure: P_g = 120 psi
• Steam locomotive fire tube boiler (UK, 20th century): 150 psi ≤ P_g ≤ 280 psi
• Union Pacific Big Boy steam locomotive boiler: 300 psi
• Natural gas pipelines: 800 to 1000 psi
• Full SCBA Self Contained Breathing Apparatus for toxic atmospheres: 2216 psi
• Full scuba tank overpressure (common): P_g = 3000 psi
• Airbus A380 hydraulic system: 5000 psi
• Ultimate strength of ASTM A36 steel: 58,000 psi
• Inch of water: 0.036 psi

Conversions

Pressure units

	Pascal	Bar	Technical atmosphere	Standard atmosphere	Torr	Pounds per square inch
	(Pa)	(bar)	(at)	(atm)	(Torr)	(psi)
1 Pa	≡ 1 N/m2	10−5	1.0197×10−5	9.8692×10−6	7.5006×10−3	1.450377×10−4
1 bar	105	≡ 106 dyn/cm2	1.0197	0.98692	750.06	14.50377
1 at	0.980665 ×105	0.980665	≡ 1 kp/cm2	0.9678411	735.5592	14.22334
1 atm	1.01325 ×105	1.01325	1.0332	≡ p0	≡ 760	14.69595
1 Torr	133.3224	1.333224×10−3	1.359551×10−3	1.315789×10−3	≈ 1 mmHg	1.933678×10−2
1 psi	6.8948×103	6.8948×10−2	7.03069×10−2	6.8046×10−2	51.71493	≡ 1 lbF/in2

See also

• Conversion of units: Pressure or mechanical stress
• Pressure: Units

References

External links

• Pressure measurement primer
• Online pressure conversions

UpToDate Contents

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• NAID 130003684587

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★リンクテーブル★

リンク元	「psi」「ポンド毎平方インチ」
関連記事	「square」「per」「PER」「pound」「pe」

「psi」

　　[★] ポンド毎平方インチ

関

pound per square inch

　 　

「ポンド毎平方インチ」

　　[★]

英

• pound per square inch、psi

「square」

　　[★]

• n.

• 平方、二乗、四角

• adj.

• 四角の

関

sq

　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　

「per」

　　[★]

• prep

• (商)～につき/ごとに
• ～で、～によって。～に託して
• ～によれば

• adv.

• 1個につき、各。

　

「PER」

　　[★]

• タンパク効率

関

protein efficiency ratio

「pound」

　　[★] ポンド 　 　 　 　 　 　 　 　 　 　 　

「pe」

　　[★]

• n.

• 体育。ペルーのドメイン名