87 lines
2.4 KiB
HTML
87 lines
2.4 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>POLDI motors</TITLE>
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</HEAD>
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<BODY>
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<H1>POLDI motors</H1>
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<P>
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<h2>Physical Motors</h2>
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<DL>
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<DT>D1HL
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<DD>2-axis diaphragm - horizontal translation (left)
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<DT>D1HR
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<DD>2-axis diaphragm - horizontal translation (right)
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<DT>D2HL
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<DD>4-axis diaphragma - horizontal translation (left)
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<DT>D2HR
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<DD>4-axis diaphragma - horizontal translation (right)
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<DT>D2VU
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<DD>4-axis diaphragma - vertical translation (upper side)
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<DT>D2VL
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<DD>4-axis diaphragma - vertical translation (lower side)
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<DT>SHU
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<DD>sample table x-translation
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<DT>SHL
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<DD>sample table y-translation
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<DT>SV
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<DD>sample table z-translation
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<DT>SA
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<DD>sample table rotation
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<DT>SGU
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<DD>sample goniometer rotation (alpha)
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<DT>SGL
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<DD>sample goniometer rotation (beta)
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<DT>RSU
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<DD>sample table overlay for radioactive samples (x-translation)
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<DT>RSL
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<DD>sample table overlay for radioactive samples (y-translation)
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<DT>RSA
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<DD>sample table overlay for radioactive samples (rotation)
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</DL>
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</P>
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<h2>Virtual motors</h2>
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<p>
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Virtual motors are instrument parameters which can be driven with the
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drive and run commands, though they are not physical motors. Mostly
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this encompasses coordinated movements of motors around several axis
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or other lengthy and error prone hardware operations.
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<dl>
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<DT>flightpathlength
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<DD>distance between chopper and detector [in mm]
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<DT>chopper_sample
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<DD>distance between chopper and sample [in mm]
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<DT>chopper_dia
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<DD>distance between chopper and 2-axis diaphragma [in mm]
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<DT>dia1_dia2
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<DD>distance between 2-axis diaphragma and 4-axis diaphragma [in mm]
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<DT>dia2_sample
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<DD>distance between 4-axis diaphragma and sample position [in mm]
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<DT>detectordist
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<DD>distance between sample position and detector [in mm]
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<DT>chopperspeed
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<DD>disk chopper speed
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<DT>twotheta
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<DD>scattering angle to the middle of the detector
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<DT>x0_det
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<DD>centre of the detector circle (x-coordinate)
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<DT>y0_det
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<DD>centre of the detector circle (y-coordinate)
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<DT>nodet
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<DD>number of detector cells (400 really cells exist)
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<DT>det_size
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<DD>size of a single detector cell [in mm]
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<DT>det400
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<DD>automatic configuration of the histogram memory to 400 detectors with
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a cell size of 2.5 mm
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<DT>det800
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<DD>automatic configuration of the histogram memory to 800 detectors
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(including 400 virtual detectors) with a cell size of 1.25 mm
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</dl>
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Note: The adjustments of det400 and det800 will be activated after giving a
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HM init command!
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</p>
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</BODY>
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</HTML>
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