<s>
A	O
displacement	B-Algorithm
receiver	I-Algorithm
is	O
a	O
device	O
that	O
responds	O
to	O
or	O
is	O
sensitive	O
to	O
directed	O
distance	O
(	O
displacement	O
)	O
.	O
</s>
<s>
Examples	O
of	O
displacement	B-Algorithm
receivers	I-Algorithm
include	O
carbon	O
microphones	O
,	O
strain	B-Algorithm
gauges	I-Algorithm
,	O
and	O
pressure	O
sensors	O
or	O
force	O
sensors	O
,	O
which	O
,	O
to	O
within	O
an	O
appropriate	O
scale	O
factor	O
,	O
respond	O
to	O
distance	O
.	O
</s>
<s>
In	O
music	O
,	O
certain	O
music	O
keyboards	O
can	O
be	O
considered	O
displacement	B-Algorithm
receivers	I-Algorithm
in	O
the	O
sense	O
that	O
they	O
respond	O
to	O
displacement	O
,	O
rather	O
than	O
velocity	O
(	O
as	O
is	O
more	O
commonly	O
the	O
case	O
)	O
.	O
</s>
