最終更新日：2025/11/20
A property of a system such that an output value is not a strict function of the corresponding input, but also incorporates some lag, delay, or history dependence, and in particular when the response for a decrease in the input variable is different from the response for an increase. For example, a thermostat with a nominal setpoint of 75° might switch the controlled heat source on when the temperature drops below 74°, and off when it rises above 76°.
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hysteresis
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元となった辞書の項目
hysteresis
名詞
可算名詞
不可算名詞
A
property
of
a
system
such
that
an
output
value
is
not
a
strict
function
of
the
corresponding
input,
but
also
incorporates
some
lag,
delay,
or
history
dependence,
and
in
particular
when
the
response
for
a
decrease
in
the
input
variable
is
different
from
the
response
for
an
increase.
For
example,
a
thermostat
with
a
nominal
setpoint
of
75°
might
switch
the
controlled
heat
source
on
when
the
temperature
drops
below
74°,
and
off
when
it
rises
above
76°.
日本語の意味
システムの出力が現在の入力だけでなく、過去の状態（履歴）にも依存し、その結果、入力が増加する時と減少する時で出力の応答が異なる現象。 / 入力と出力の関係が単一の明確な関数関係にとどまらず、システムの過去の変化や遅延（ラグ）などの履歴効果が影響する性質。
意味（1）
A
property
of
a
system
such
that
an
output
value
is
not
a
strict
function
of
the
corresponding
input,
but
also
incorporates
some
lag,
delay,
or
history
dependence,
and
in
particular
when
the
response
for
a
decrease
in
the
input
variable
is
different
from
the
response
for
an
increase.
For
example,
a
thermostat
with
a
nominal
setpoint
of
75°
might
switch
the
controlled
heat
source
on
when
the
temperature
drops
below
74°,
and
off
when
it
rises
above
76°.
（ plural ）
