H. Dannerbauer; 07-Dec-2006

Index TableOfContents(2)


1. Determination of Chopper Offset



2. Chopper Open Loop Measurements



3. Chopper Control Loop Parameters (CALU table) - Version: 06 March 2007


ColdOPdef

ColdOPzero

ZEISSzero

ZEISSoffset

ZEISSoffset2

Remark

working but not useful

working but not useful

for testing only

for testing only

to be preferred to ZEISSoffset

Usage

do not use

do not use

do not use

do not use

do not use

Date of creation

Feb 22, 2007 (MN, HD)

Feb 22, 2007 (MN, HD)

Feb 23, 2007 (MN, HD)

Feb 23, 2007 (MN, HD)

Feb 23, 2007 (MN, HD)

Source

CSL EGSE at MPE (Alain)

CSL EGSE at MPE (Alain)

ZEISS EICD

ZEISS EICD

ZEISS EICD

PosLimit

+/- 4.5 deg (13000 units)

+/- 4.5 deg (13000 units)

+/- 5.5 deg (16000 units)

+/- 10.5 deg (28500 units)

+/- 10.5 deg (28500 units)

OutputLimit

+/- 24 mA (6000 units)

+/- 24 mA (6000 units)

+/- 30 mA (7500 units)

+/- 45 mA (11086 units)

+/- 45 mA (11086 units)

Rate

29 units, calculated for chopper pos +/- 12000 units at 100 ms ramp

29 units, calculated for chopper pos +/- 12000 units at 100 ms ramp

29 units, calculated for chopper pos +/- 12000 units at 100 ms ramp

29 units, calculated for chopper pos +/- 12000 units at 100 ms ramp

29 units, calculated for chopper pos +/- 12000 units at 100 ms ramp

Notch filter

480 Hz, DA=2

480 Hz, DA=2

900 Hz, DA=2

900 Hz, DA=2

480 Hz, DA=2

DMC amplification

50.243

50.243

50.09

50.09

50.09

Offset mech. ZP

-1125 units

0 units

0 units

-1195 units

-1195 units

Transition times

not measured

not measured

not measured

not measured

not measured

CSLopt1

CSLopt2-600

CSLopt2-550

CSLopt3-600

CSLopt3-550

Remark

stable fallback parameter set, Warning! Oscillations occur at deflections > 4.1 deg!

Dangerous! Can damage chopper!, worked with CSL EGSE

potentially dangerous, not tested

Working well. This is the default parameter set for now.

potentially dangerous, not tested

Usage

use if other settings fail

never use

do not use

use as default

do not use

Date of creation

Feb 28, 2007 (MN)

Mar 02, 2007 (MN)

Mar 02, 2007 (MN)

Mar 02, 2007 (MN)

Mar 02, 2007 (MN)

Source

CSL EGSE at MPE (Benoit)

CSL EGSE at MPE (Benoit)

CSL EGSE at MPE (Benoit)

CSL EGSE at MPE (Benoit)

CSL EGSE at MPE (Benoit)

PosLimit

+/- 5 deg (14000 units)

+/- 9.5 deg (25000 units)

+/- 9.5 deg (25000 units)

+/- 9.5 deg (25000 units)

+/- 5 deg (14000 units)

OutputLimit

+/- 65 mA (16013 units)

+/- 65 mA (16013 units)

+/- 65 mA (16013 units)

+/- 110 mA (27100 units)

+/- 110 mA (27100 units)

Rate

310 units, calculated for chopper pos +/- 26000 units at 10 ms ramp

310 units, calculated for chopper pos +/- 26000 units at 10 ms ramp

310 units, calculated for chopper pos +/- 26000 units at 10 ms ramp

550 units, calculated for chopper pos +/- 26000 units at 5.8 ms ramp

550 units, calculated for chopper pos +/- 26000 units at 5.8 ms ramp

Notch filter

550 Hz, DA=3

600 Hz, DA=3

550 Hz, DA=3

600 Hz, DA=3

550 Hz, DA=3

Offset mech. ZP

-1195 units

-1195 units

-1195 units

-1195 units

-1195 units

Transition time at +/- 4 deg

slow

approx. 25 ms

approx. 25 ms

approx. 17 ms

approx. 17 ms

Transition time at +/- 9 deg

slow

approx. 60 ms

approx. 60 ms

approx. 60 ms

approx. 60 ms


4. Chopper Standard Tests


CUS-Script

duration

Telemetry-file name convention

SPEC_Chopper_Standard_1_2Hz_OBS.cus

129sec

SPEC_Chop_Standard_1_date_01.tm

SPEC_Chopper_Standard_2_2Hz_OBS.cus

129sec

SPEC_Chop_Standard_2_date_01.tm

PHOT_Chopper_Standard_1_2Hz_OBS.cus

49sec

PHOT_Chop_Standard_1_date_01.tm

PHOT_Chopper_Standard_2_2Hz_OBS.cus

49sec

PHOT_Chop_Standard_2_date_01.tm


5. Verify function of Ge:Ga detectors, CREs and detector heaters PTD 0.7.3 (TBD!)



6. Chopper Synchronization PTD 0.7.6 (TBD!)


6.1. Spectroscopic Mode (TBD!)

6.2. Photometeric Mode (TBD!)


7. Internal Calibration Sources PTD 0.7.11_12 & 2.5.3


7.1. Day 16:

7.2. Day 17:

7.3. Day 18:


8. Optimum Bias Setting PTD 1.2.1_2_17


Instruction for Thomas:


9. CRE Check Out Voltage PTD 1.2.4