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1- and 2-Axis Goniometer Stages

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Goniometer Stages




  • Pure Rotational Motion About a Fixed point Above the Stage
  • 1° Graduation Markings on Side
  • Accuracy of 10 arcmin

Features

  • Pure Rotational Motion About a Virtual Point
  • 1° Graduation Marks on Side
  • Backlash-Free Spring-Loaded Design
  • Fully Lockable
  • Small Platform Goniometer Stage: 1" x 1"
  • Large Platform Goniometer Stage: 1.5" x 1.5"
    (Available Motorized)

A goniometer or goniometric stage is a device used to rotate an object precisely, within a small angular range, about a fixed point in space. Goniometers are similar to linear stages, but, rather than providing linear movement, the stage partially rotates about a fixed point above the mounting surface of the stage. In our two product lines, the distance from the point of rotation to the mounting surface was designed so that two different goniometer models may be stacked in an X-Y configuration and both stages will rotate about the same point. Our goniometers use a backlash-free leadscrew in the smaller GN series and a precision micrometer for enhanced angular positioning of the top plate in the larger GNL series.

Our goniometers offer unobstructed, pure rotational motion about their point of rotation over the angle of rotation (see image to the right). The compact, stackable design allows one model to be fastened to the top plate of another aligning their points of rotation. In the GN series, the GN05 mounts atop the GN1. In the GNL series, the GNL10 mounts atop the GNL18. These two axis stage setups can be purchased as a single package (GN2 or GNL20 respectively).

The precision dovetail design, accompanied by a backlash-free lead screw and a vernier scale, provides accurate and repeatable positioning. A side mounted setscrew can be used to lock the platform in position.

The GN series goniometers provide a generous array of taps including 4-40 (M2.5) and 6-32 (M3) for mounting. This series can be either post mounted via an 8-32 (M4) tap or mounted to a mini series breadboard via the slotted mounting holes.

Alternatively, the GNL series offers 4-40 (M2.5) and 6-32 (M4) taps. See below or the Specs tab for mounting hole position. Our PM3(PM3/M) and PM4(PM4/M) clamping arms feature 6-32 (M4) threads, allowing them to be attached to most goniometers.

 

Goniometers: Small Platform

 

Item #GN05GN1GN2
Distance to Point Rotation from Top Surface 0.50" (13 mm) 1.00" (25 mm) 0.50" (13 mm)
Rotation ±15o ±10o ±10o / ±15o
Accuracy 10 arcmin (0.167°) 10 arcmin (0.167°) 10 arcmin (0.167°)
Load Capacity 0.25 lbs (0.113 kg) 0.25 lbs (0.113 kg) 0.25 lbs (0.113 kg)
Goniometer Dim 1.00" x 1.00" x 0.50"
(25 mm x 25 mm x 13 mm)
1.00" x 1.00" x 0.50"
(25 mm x 25 mm x 13 mm)
1.00" x 1.00" x 1.00"
(25 mm x 25 mm x 25 mm)
Base Plate Dim 1.00" x 1.85" x 0.200"
(25 mm x 47 mm x 5 mm)
1.00" x 1.85" x 0.200"
(25 mm x 47 mm x 5 mm)
1.00" x 1.85" x 0.200"
(25 mm x 47 mm x 5 mm)

 


Goniometers: Large Platform

 

Item #GNL10GNL18GNL20
Distance to Point of Rotation from Top Surface 1.00" (25 mm) 1.75" (44 mm) 1.00" (25 mm)
Rotation ±10o ±5o ±5o / ±10o
Accuracy 10 arcmin (0.167°) 10 arcmin (0.167°) 10 arcmin (0.167°)
Load Capacity 1.0 lbs (0.45 kg) 1.0 lbs (0.45 kg) 1.0 lbs (0.45 kg)
Goniometer Dim 1.50" x 1.50" x 0.75"
(38 mm x 38 mm x 19 mm)
1.50" x 1.50" x 0.75"
(38 mm x 38 mm x 19 mm)
1.50" x 1.50" x 1.50"
(38 mm x 38 mm x 38 mm)
Base Plate Dim 1.50" x 2.50" x 0.200"
(38 mm x 64 mm x 24 mm)
1.50" x 2.50" x 0.200"
(38 mm x 64 mm x 24 mm)
1.50" x 2.50" x 0.200"
(38 mm x 64 mm x 24 mm)

 

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

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