Experimental Physics and
Industrial Control System

Hej Steve,

for building the ESTIA neutron instrument (beamline) @ESS there has been
done some engineering work with an interferoemter and motion control.

They used an
Attocube IDS3010

The motion controller has been integrated into EPICS, using motorRecord.

The interferometer was not integrated into EPICS, mainly due to lack of time.

There was a mechanical test becnch, which was controlled by a python based
control system called NICOS2.

The engineers where quite happy with the complete setup, as far as I know.

For a more production-like setup I would push for a proper EPICS integration,
but we are not there yet.

Hopefully this answers some questions?
I can dig into the details if you want.



On 23/05/18 21:09, Hartman, Steven M. wrote:

For our engineering materials diffractometer instrument, we have been approached about the feasibility of integrating a laser tracker into the beam line EPICS system. The idea would be to use the laser tracker to measure position and compute six misalignment parameters. The misalignment parameters would be passed to the EPICS-based motion control system to correct positioning.

How anyone attempted this before? (I found a related query in tech-talk from 2016 but no response.)


The Survey & Alignment team suggests the Leica AT401 Laser Tracker [1] with the Spatial Analyzer (SA) software [2]. The SA software has a scripting interface (Measurement Plan) [3, page 927] which could be used to calculate the transformation from a measured misalignment to a motor move. The SA documentation [3, page 969] indicates that SA includes an OPC server.


[1] http://metrology.leica-geosystems.com/downloads123/m1/metrology/AT401/brochures-datasheet/Leica%20Absolute%20Tracker%20AT401%20-%20ASME%20specifications_en.pdf

[2] http://www.kinematics.com/spatialanalyzer/

[3] http://www.kinematics.com/ftp/SA/Install/Documentation/SA%20User%20Manual%202018.02.16.pdf

References:

Leica laser tracker integration with EPICS Hartman, Steven M.

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