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TLevel 0 · Kind of Quantity

time-type quantities

grandeurs de type temps

13 quantities of this kind. All share dimension T and can be compared, added, and converted between units.

Corresponding UnitsDB dimension
time
NISTd3 · d:time
Part 3: Space and Time3 of 42 entries
3-9
durationt
measure of the time difference between two events
3-14
period duration, periodT
duration (t3-9) of one cycle of a periodic event
3-15
time constanttau
parameter characterizing the response to a step input of a first-order, linear time-invariant system
Part 8: Acoustics1 of 18 entries
8-17
reverberation timeT
time duration (iso80000-3) required for the space-averaged sound energy density (t8-7) to decrease to of its initial…
ent
Part 10: Atomic and Nuclear3 of 125 entries
10-25
mean duration of life, mean life time <atomic and nuclear physics>tau
reciprocal of the decay constant (t10-24):
10-31
half lifeT_(1//2)
mean duration (iso80000-3) required for the decay of one half of the atoms or nuclei
ent
10-79
reactor time constantT
duration (iso80000-3) required for the neutron fluence rate (t10-44) in a reactor to change by the factor when the…
ent
Part 12: Condensed Matter2 of 60 entries
12-32.1
relaxation time <condensed matter>tau
time constant (iso80000-3) for scattering, trapping or annihilation of charge carriers, phonons or other quasiparticles
12-32.2
carrier lifetime <semiconductors>tau
time constant (iso80000-3) for recombination or trapping of minority charge carriers in semiconductors
Part 13: Information Science4 of 84 entries
13-12
period of data elementsii(T)
where is transfer rate (t13-11) when the data elements are transmitted in series
13-14
period of binary digits, bit periodii(T)_"b"
where is the binary digit rate (t13-13) when the binary digits are transmitted in series
13-12
period of data elements, period duration of data elementsT
where r is the transfer rate (t13-11) when the data elements are transmitted in series
13-14
period of binary digits, period duration of binary digits, bit periodT_{"bit"}
where is the binary digit rate (t13-13) when the binary digits are transmitted in series