Last Updated：2025/11/28
The loss of one degree of freedom in the three-dimensional rotational movement of a three-gimbal mechanism, which occurs when the axes of two of the three gimbals are driven into a parallel configuration, so that the system's rotational movement becomes two-dimensional (and necessarily remains so until an appropriate force is applied); the equivalent situation in a simulation of rotational movement, when the mathematical model uses Euler angles (representing pitch, yaw and roll) or their equivalent.
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gimbal lock
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Source Word
gimbal lock
Noun
countable
uncountable
The
loss
of
one
degree
of
freedom
in
the
three-dimensional
rotational
movement
of
a
three-gimbal
mechanism,
which
occurs
when
the
axes
of
two
of
the
three
gimbals
are
driven
into
a
parallel
configuration,
so
that
the
system's
rotational
movement
becomes
two-dimensional
(and
necessarily
remains
so
until
an
appropriate
force
is
applied);
the
equivalent
situation
in
a
simulation
of
rotational
movement,
when
the
mathematical
model
uses
Euler
angles
(representing
pitch,
yaw
and
roll)
or
their
equivalent.
Japanese Meaning
三軸ジンバル機構において、2軸が平行になり、回転自由度が1つ失われる現象。これにより、本来の3次元回転が実質的に2次元の回転運動に制限される。
Sense（1）
The
loss
of
one
degree
of
freedom
in
the
three-dimensional
rotational
movement
of
a
three-gimbal
mechanism,
which
occurs
when
the
axes
of
two
of
the
three
gimbals
are
driven
into
a
parallel
configuration,
so
that
the
system's
rotational
movement
becomes
two-dimensional
(and
necessarily
remains
so
until
an
appropriate
force
is
applied);
the
equivalent
situation
in
a
simulation
of
rotational
movement,
when
the
mathematical
model
uses
Euler
angles
(representing
pitch,
yaw
and
roll)
or
their
equivalent.
（ plural ）
