Eulerian Cradle 512.5

General information:

The Eulerian cradles of the series 500 can be combined with the goniometers of the series 400 to create multi-circle diffractometers. These can be used for analytical investigations in the fields of X-ray and neutron diffraction.

The Eulerian cradle is a full-circle cradle with an assymetrical design. The Phi- and Chi-circle planes are at right angles to one another.

The motor and signal currents are transmitted via slip rings. This enables an unrestricted rotation around the Phi-axis.

A manual Z-adjustment 5104.A05 is incorporated in the Phi-circle, enabling goniometer heads of the series 1000 to be mounted. Also available is a motorised Z-adjustment.

For sample adjustment an optical microscope or an optional CCD-camera is integrated (see Accessories MiniVID).

Both circles are equipped with zero-point controls and step motors. A range of different motor types and specifications is available according to customer requirements.


Sphere of confusion [mm]: 0.04***
Parallelity (Chi-plane to Phi-axis) ["]: <= +/- 20***
Weight [kg]: 60
  Phi-circle Chi-circle
Travel range [°]: 360 160
Gear ratio: 360:1 / 180:1** 360:1
Accuracy ["]: 30 30
Repeatability (unidir.) ["]: <= 2 <= 3
Reversal error ["]: <= 10 <= 15
Resolution [°]: 0.001* / 0.002* ** 0.001*
Min. drive torque [Nm]: 0.10 / 0.13** 1.5
Flange size [mm]: 56 83

* step motor, 1000 steps/revolution

** using Goniometer 410A

*** with a load of 10kg

Dimensions [mm]:

D: Z:
400 63.5


Motors: included
Limit switches: included
Zero-point control: included
Gear boxes: 2056.05 (Phi)
  2056.10 (Phi)
  2056.20 (Phi)
  2083.05 (Chi)
  2083.10 (Chi)
  2083.20 (Chi)
Encoder: incremental
Control system: 9300
CCD-camera: MiniVID
Z-adjustment motorised: 5104.A05M
Goniometer heads: Series 1000

Eulerian Cradle 512.5


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Catalogue PDF (EN)

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