ポンド毎平方インチ
- 関
- psi
WordNet
- the 23rd letter of the Greek alphabet
- raise to the second power
- (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
- 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
- make square; "Square the circle"; "square the wood with a file" (同)square_up
- something approximating the shape of a square
- 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"
- any artifact having a shape similar to a plane geometric figure with four equal sides and four right angles; "a checkerboard has 64 squares"
- someone who doesnt understand what is going on (同)lame
- a formal and conservative person with old-fashioned views (同)square toes
- rigidly conventional or old-fashioned (同)straight
- without evasion or compromise; "a square contradiction"; "he is not being as straightforward as it appears" (同)straightforward, straight
- be compatible with; "one idea squares with another"
- cause to match, as of ideas or acts
- having four equal sides and four right angles or forming a right angle; "a square peg in a round hole"; "a square corner"
- leaving no balance; "my account with you is now all square"
- pay someone and settle a debt; "I squared with him"
- position so as to be square; "He squared his shoulders"
- shut up or confine in any enclosure or within any bounds or limits; "The prisoners are safely pounded" (同)pound up
- 16 ounces avoirdupois; "he got a hernia when he tried to lift 100 pounds" (同)lb
- 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.
- a unit of apothecary weight equal to 12 ounces troy
- break down and crush by beating, as with a pestle; "pound the roots with a heavy flat stone"
- a public enclosure for stray or unlicensed dogs; "unlicensed dogs will be taken to the pound" (同)dog pound
- a symbol for a unit of currency (especially for the pound sterling in Great Britain) (同)pound sign
- partition off into compartments; "The locks pound the water of the canal" (同)pound off
- holding office; "the in party"
- to or toward the inside of; "come in"; "smash in the door" (同)inwards, inward
- currently fashionable; "the in thing to do"; "large shoulder pads are in"
- directed or bound inward; "took the in bus"; "the in basket"
- a unit of length equal to one twelfth of a foot (同)in
PrepTutorEJDIC
- 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)
- 『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』》
- 『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)
- (…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
- (動物,特に捨て犬・猫の)囲い檻(おり),収容所
- 《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
- 『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
- …『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)
[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 lbf/in2 or lbf/sq in or lbf/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:
≈ 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.[1][2]
Contents
- 1 ksi
- 2 Magnitude
- 3 Conversions
- 4 See also
- 5 References
- 6 External links
ksi[edit]
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[edit]
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):Pg = 6–15 psi
- Atmospheric pressure at sea level (standard): Pa = 14.7 psi
- Automobile tyre overpressure (common): Pg = 32 psi
- Bicycle tyre overpressure (common): Pg = 65 psi
- Workshop or garage air tools: Pg = 90 psi
- Air brake (rail) or Air brake (road vehicle) reservoir overpressure (common): 90 psi ≤ Pg ≤ 120 psi
- Road racing bicycle tire overpressure: Pg = 120 psi
- Steam locomotive fire tube boiler (UK, 20th century): 150 psi ≤ Pg ≤ 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): Pg = 3000 psi
- Airbus A380 hydraulic system: 5000 psi
- Ultimate strength of ASTM A36 steel: 58,000 psi
- Inch of water: 0.036 psi
Conversions[edit]
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[edit]
- Conversion of units: Pressure or mechanical stress
- Pressure: Units
References[edit]
- ^ "Glossary of Industrial Air Cleaning Technology". United Air Specialists, Inc.
- ^ "Gage v. Sealed v. Absolute pressure". Dynisco.
External links[edit]
- Pressure measurement primer
- Online pressure conversions
UpToDate Contents
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English Journal
- Somatotopic finger mapping using MEG: toward an optimal stimulation paradigm.
- Jamali S1, Ross B.
- Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology.Clin Neurophysiol.2013 Aug;124(8):1659-70. doi: 10.1016/j.clinph.2013.01.027. Epub 2013 Mar 19.
- OBJECTIVE: In non-invasive somatotopic mapping based on neuromagnetic source analysis, the recording time can be shortened and accuracy improved by applying simultaneously vibrotactile stimuli at different frequencies to multiple body sites and recording multiple steady-state responses. This study c
- PMID 23518470
- Thermal explosion hazards on 18650 lithium ion batteries with a VSP2 adiabatic calorimeter.
- Jhu CY1, Wang YW, Shu CM, Chang JC, Wu HC.
- Journal of hazardous materials.J Hazard Mater.2011 Aug 15;192(1):99-107. doi: 10.1016/j.jhazmat.2011.04.097. Epub 2011 May 4.
- Thermal abuse behaviors relating to adiabatic runaway reactions in commercial 18650 lithium ion batteries (LiCoO(2)) are being studied in an adiabatic calorimeter, vent sizing package 2 (VSP2). We select four worldwide battery producers, Sony, Sanyo, Samsung and LG, and tested their Li-ion batteries
- PMID 21612866
Japanese Journal
- Cleaning Problem in Pulp and Paper Mill by High Pressure Jet Water:I. Paper Mill Washer
- 荒木 正紀,館 勇,北野 昭俊
- 紙パ技協誌 10(12), 656-659, 1956
- … Seiko Isuzu is manufacturing a new type high pressure water pump as car washer since for years before.<BR>Distinctive features of the pump are : two special modified elliptic gears which are arranged and combined properly in the casing, the increased out put considerably per revolution and the highest overall efficiency. … Capacity of the pump is up to 10 gallons per minute at 330 r.p.m.. …
- NAID 130003684587
Related Links
- pound per square inch [′pau nd pər skwer ′inch] (mechanics) A unit of pressure equal to the pressure resulting from a force of 1 pound applied uniformly ... The force of the water was 170 pounds per square inch, flowing through three ...
- Hello everyone, Thank you for great response to the question I posted. Now I understand a little bit more regarding what pound per square inch is but there is a couple more things I am not really clear. 1. Pound per ...
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