Goniometer
stages
can
measure
angles
of
objects
such
as
crystals
or
move
an
object
to a
precise angular position along
an
arc,
in
relation
to a
fixed
point
in
space.
Two
goniometer
stages
mounted
in
an
alpha-beta
configuration
(stacked)
can
rotate
an
object
around
a
fixed
point
in
space on
a
spherical
surface.
The
lower goniometer
stage
features
±
10
degrees
of
rotation
at a
rate
of
14
degrees
per
second
with
stepper
motor
and
90
degrees
per
second
with
Three
Phase
Brushless
Servo
Motor
with
Quadrature
Incremental
Optical
Encoder.
The
upper goniometer
stage
features
a 65
mm x
65
mm
table,
±
15
degrees
of
rotation
at a
rate
of
14
degrees
per
second
with
stepper
motor
and
90
degrees
per
second
with
Three
Phase
Brushless
Servo
Motor
with
Quadrature
Incremental
Optical
Encoder.
The
accuracies
for
each
unit
are;
repeatability:
± 4"
(240
arcseconds),
typical
Positioning
accuracy:
± 9"
(540
arcseconds),
and
typical
backlash
is ±
3"
(180
arcseconds).
The
goniometers
and
stacked
goniometers
are
used
for:
Identifying
crystals,
examining
cutting
edges
of
medical
instruments,
estimating
hyperspectral
bidirectional
reflectance,
gloss
measurements,
measurements
of
radiation
patterns
of
LEDs,
Directing
lasers,
aligning
mirrors,
and
manufacturing
of
quartz
oscillator
plates
using
quartz
cutting
x-rays.
The
precision,
compact
AK110-10-15 Goniometer
stacked
stage,
available
with
either
stepper,
Three
Phase
Brushless
Servo
Motor
with
Quadrature
Incremental
Optical
Encoders,
optical
encoders
or
manual
adjustment
knobs.
It
has
a
footprint
of
just
169
mm x
169
mm,
and
can
be
supplied
plug-and-play
with
a
motion
controller.
It
is
easily
integrated
into
an
inspection,
testing,
or
manufacturing
environment.
This
stage requires a
Motion Controller
that can be
ordered as a
complete
plug-and-play
system with
RS-232, USB,
joystick,
trackball,
and keypad
control.
Video
Example
