Goniometer II Universal

In contrast to the Goniometer II Standard the Goniometer is equipped with two autocollimators:

  • Autocollimator AKG 300/65/14.7
  • Autocollimator AKG 300/65/14.7 MDD

Thereby this Goniometer can be used to measure dihedral and deflection angles as well the pyramidal error of prisms. The combination of the two autocollimators allows the use as a relativ Goniometer , too. In this case no master prism is required.

For evaluation of the measurement values with a PC the software GonioWin is included with delivery.

Components

Base unit

Base unit with sturdy design in order to achieve thermal stability and long-term accuracy:

  • Consisting of base plate, housing, swinging arm, adjustable supporting table, high precision axis, incremental divided circle with photoelectric reading, collimator stand
  • Swinging arm 360° rotatable (collimator stand removed)
  • Collimator stand for mounting of a collimator or autocollimator with 65 mm tube diameter
  • Autocollimator holder (on swinging arm), and collimator holder (on fixed collimator stand)

AKG 300/65/14,7 MDD

Autocollimator with straight viewing and 300 mm focal length as well as digital double micometer:

  • light source: bulb 6V/5W
  • Setting accuracy: approx. 0.5" in reflection, approx. 1" in transmission

AKG 300/65/14,7

Autocollimator with straight viewing and 300 mm focal length:

  • Setting accuracy. approx. 0.5" in reflection, approx. 1" in transmission

Measurement Tasks

  • Measurement of dihedral angles in reflection of plane-optical components and of optical prisms (absolute measurement)
  • Measurement of dihedral angles in reflection of plane-optical components and of optical prisms (relative measurement)
  • Exat angle measurement of regular and irregular polygon mirrors
  • Measurement of deflection angle of optical prisms
  • Measurement of the pyramidal error of prisms and polygon mirrors

More information as well as sketches for the different applications you will find here.

Every autocollimator/collimator is equipped with a 6V/5W bulb. Other illumination (LED or light conductive fibre illumination) must be ordered separately.

Additionally a motorized tripod for the goniometer can be purchased.

Technical data

  Goniometer
Measuring priniple
- Adjustment
-Angle measurement
optically
photo-electronic with electronic signal evaluation
Divided circle
- Division
- Number of lines
- Number of sensors 		Glass
Radial grating
36.000
2
Swivelling range 360°
appr. 270° (with spectral unit or collimator)
Angle resolution 0.00001°/0.036´´
Accuray/Angle measurement
- Accuracy of single measurement
- Mean error of a series measurement
2-3 arcsec
0.6 arcsec
Autocollimator/Collimator Lens optics
Adjustment Eyepiece visual (optional with CCD-camera)
Data acquisition PC (incl. Software)
Order-No. Description
241 022 Digital Goniometer II Universal