Áit ❯ Gach Sainmhínithe ❯ Aonad ❯ Nepers (NP) Sainmhíniú aonaid
Nepers (NP) Sainmhíniú aonaid
The neper (Np) is a logarithmic unit for ratios of measurements of physical field and power quantities, such as gain and loss of electronic signals or sound level. The units name is derived from the name of John Napier, the inventor of logarithms. Just like the decibel (dB) and bel (B), the neper is a unit defined in the international standard ISO 80000. It is not part of the International System of Units (SI), but is accepted for use alongside the SI.
SI Multiples
A table of various sound level neper units derived from SI multiples:
Submultiples |
Multiples |
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Scientific Notation |
Luach |
Réimeas |
Ainmnigh |
Scientific Notation |
Luach |
Réimeas |
Ainmnigh |
10-1 Np |
0.1 Np |
Deci (d) | DECINEPERS (DNP) | 101 Np |
10 Np |
Deca (DA) | Decanepers (DANP) |
10-2 Np |
0.01 Np |
Centi (c) | Centinepers (CNP) | 102 Np |
100 Np |
Hecto (H) | Hectonepers (HNP) |
10-3 Np |
0.001 Np |
Milli (M) | Millinepers (MNP) | 103 Np |
1000 Np |
Kilo (K) | Kilonepers (KNP) |
10-6 Np |
0.000001 Np |
Micrea (µ) | Micronepers (µnp) | 106 Np |
1000000 Np |
Mega (m) | Meganepers (MNP) |
10-9 Np |
0.000000001 Np |
Nano (n) | Nanonepers (NNP) | 109 Np |
1000000000 Np |
Giga (G) | Giganepers (GNP) |
10-12 Np |
0.000000000001 Np |
Pico (P) | Piconepers (PNP) | 1012 Np |
1000000000000 Np |
Tera (t) | Teranepers (TNP) |
10-15 Np |
0.000000000000001 Np |
Femto (F) | Femtonepers (FNP) | 1015 Np |
1000000000000000 Np |
PETA (P) | Petanepers (PNP) |
10-18 Np |
0.000000000000000001 Np |
Atto (a) | Attonepers (ANP) | 1018 Np |
1000000000000000000 Np |
Exa (e) | Exanepers (ENP) |
10-21 Np |
0.000000000000000000001 Np |
Zepto (z) | Zeptonepers (Znp) | 1021 Np |
1000000000000000000000 Np |
Zetta (Z) | Zettanepers (Znp) |
10-24 Np |
0.000000000000000000000001 Np |
Yocto (y) | Yoctonepers (YNP) | 1024 Np |
1000000000000000000000000 Np |
Yotta (Y) | Yottanepers (YNP) |
10-27 Np |
0.000000000000000000000000001 Np |
Ronto (r) | Rontonepers (rNp) | 1027 Np |
1000000000000000000000000000 Np |
Ronna (R) | Ronnanepers (RNp) |
10-30 Np |
0.000000000000000000000000000001 Np |
Quecto (q) | Quectonepers (qNp) | 1030 Np |
1000000000000000000000000000000 Np |
Quetta (Q) | Quettanepers (QNp) |
Other Sound Level Unit Definitions
- Attobels (AB)
- Attonepers (ANP)
- Bels (b)
- Centibels (CB)
- Centinepers (CNP)
- Decabels (DAB)
- Decanepers (DANP)
- Deicibeil (DB)
- DECINEPERS (DNP)
- Dekabels (daB)
- Dekanepers (daNp)
- Exabels (EB)
- Exanepers (ENP)
- Femtobels (fB)
- Femtonepers (FNP)
- Gigabels (GB)
- Giganepers (GNP)
- Hectobels (HB)
- Hectonepers (HNP)
- Cileabail (KB)
- Kilonepers (KNP)
- Megabels (MB)
- Meganepers (MNP)
- Miocrób (µB)
- Micronepers (µnp)
- Millibels (MB)
- Millinepers (MNP)
- Nanobels (NB)
- Nanonepers (NNP)
- Nepers (NP)
- Petabels (PB)
- Petanepers (PNP)
- PicoBels (PB)
- Piconepers (PNP)
- Quectobels (qB)
- Quectonepers (qNp)
- Quettabels (QB)
- Quettanepers (QNp)
- Ronnabels (RB)
- Ronnanepers (RNp)
- Rontobels (rB)
- Rontonepers (rNp)
- Terabels (TB)
- Teranepers (TNP)
- Yoctobels (YB)
- Yoctonepers (YNP)
- Yottabels (YB)
- Yottanepers (YNP)
- Zeptobels (ZB)
- Zeptonepers (Znp)
- Zettabels (ZB)
- Zettanepers (Znp)
Convert to Another Sound Level Unit
Sainmhínithe gaolmhara
Séanadh
Cé go bhfuil gach iarracht déanta chun an tiontaire aonaid seo a thástáil, ní féidir linn a bheith faoi dhliteanas i leith aon damáistí speisialta, teagmhasacha, indíreacha nó iarmhartacha nó caillteanais airgeadaíochta de chineál ar bith a eascraíonn as nó i dtaca le húsáid aon cheann de na huirlisí tiontaire agus faisnéis a fuarthas ón láithreán gréasáin seo. Cuirtear an tiontaire aonaid seo ar fáil mar sheirbhís duit, bain úsáid as do riosca féin le do thoil. Ná bain úsáid as ríomhanna le haghaidh aon rud ina bhféadfadh cailliúint saoil, airgead, maoin, srl.
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Foinsíocht
“Neper.” Wikipedia, Wikimedia Foundation, 3 Sept. 2023, en.wikipedia.org/wiki/Neper.