GratingTurret < Keck/MOSFIRE

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---+!! %MAKETEXT{"Grating Turret Test Data" args="<nop>%WEB%"}%

---++ Bulletin
   * 5:37pm August 3, 2009:  Reliability script test complete with 200 moves no errors.
   * 9:52am August 4, 2009:  Vacuum leak occurred in test chamber.  Mechanism warmed up over night currently at ~230K.
   * 10:19am August 6, 2009:  Mechanism is in transition to 120K.  Currently at ~220K.
   * 9:47am August 10, 2009:  Mechanism is at an operating temperature of 120K.  Running reliability script for 200 moves with dewar window pointing up.
   * 12:17pm August 10, 2009:  Reliablitily and Repeatability tests complete with dewar at 90 degrees and window up.      

---++  Test Information 

   * [[%ATTACHURL%/Grating_Turret.ppt][Switch Locations and Configurations]]
   * Shortkey Grating Commands from the _mosdev>_ prompt 

|  *Command*  |  *Description*  |
| moveGrating s  | moves the turret to the _secondary_  grating position (i.e. shim out).  |
| moveGrating p  | moves the turret to the _primary_ grating position (i.e. shim in).  |
| moveGrating m  | moves the turret to the imaging mirror position.  |
| moveGrating nnn  | moves the grating to an absolute position nnn, where nnn must be in the range of -9016 to 0.  These are the limits of travel.  |
| homeShim  | homes the shim.  |
| homeGrating  | homes the turret.  |
| exercise_Grating n  | moves the grating through all 6 possible movements n times.  |
| gratingSP n  | moves the grating between the primary and secondary positions n times.  |
| > _filename_ &  |  Add to the end of any command to record all displayed text to a file titled _filename_.  On the next line use _tail -f filename_  to run commad.  |
| gratingStatus  | Displays the status of the grating and shim motor controllers.  |
| abortMove  | Stops the motors.  |
| initPacsci  -p _[/dev/ttyr9 or /dev/ttyra]_  | Initializes the motor controllers.  _ttyr9_ is the turret motor and _ttyra_ is the shim motor.  |
| moveShim in  | moves the shim in.  |
| moveShim out  | moves the shim out.  | 
---++ Repeatability Data

|  *Date [mm/dd/yy]*  |  *Temperature [K]*  |  *N*  |  *Position*  |  *Orientation*  |  *1Sig Grating Side [um]*  |  *1Sig Mirror Side [um]*  |
|  08/10/09  |  120  |  10  |  Primary  |  90 deg window east  |  1.7  |  0.8  |
|  08/10/09  |  120  |  11  |  Secondary  |  90 deg window east  |  0.3  |  0.7  |
|  08/10/09  |  120  |  10  |  Primary  |  90 deg window up  |  2.3  |  2.1  |
|  08/10/09  |  120  |  11  |  Secondary  |  90 deg window up  |  0.4  |  0.6  |
|  08/03/09  |  120  |  10  |  Primary  |  0 deg  |  0.8  |  1.0  |
|  08/03/09  |  120  |  11  |  Secondary  |  0 deg  |  0.4  |  0.7  |  


   * [[%ATTACHURL%/grating_repeat_081009b][grating_repeat_081009b]], [[%ATTACHURL%/grating_repeat_081009c][grating_repeat_081009c]]

Data taken with the optical axis of the grating turret parallel wrt gravity (i.e. dewar window east).  Grating turret was moved between the primary and secondary grating positions a total of 20 times.  Recorded positions are in units of [mm] taken at a time interval of 1[s] per scan.  Second data column is the proximity sensor on the grating side and the third data column is the proximity sensor on the imaging mirror side.  Test was started at 1:42pm and completed at 3:39pm on August 10, 2009.  More details in [Mechanisms Logbook 1 page 81].      

   * [[%ATTACHURL%/grating_repeat_081009][grating_repeat_081009]]
  
Data taken with the optical axis of the grating turret parallel wrt gravity (i.e. dewar window up).  Grating turret was moved between the primary and secondary grating positions a total of 20 times.  Recorded positions are in units of [mm] taken at a time interval of 1[s] per scan.  Second data column is the proximity sensor on the grating side and the third data column is the proximity sensor on the imaging mirror side.  Test was started at 10:40am and completed at 12:11pm on August 10, 2009.  More details in [Mechanisms Logbook 1 page 80].   

   * [[%ATTACHURL%/grating_repeat_080309][grating_repeat_080309]] 

Data taken with the optical axis of the grating turret perpendicular wrt gravity.  Grating turret was moved between the primary and secondary grating positions a total of 20 times.  Recorded positions are in units of [mm] taken at a time interval of 1[s] per scan.  Second data column is the proximity sensor on the grating side and the third data column is the proximity sensor on the imaging mirror side.  Test was started at 1:23pm and completed at 3:05pm on August 3, 2009.  More details in [Mechanisms Logbook 1 page 79].

---++ Reliability Data

   * [[%ATTACHURL%/090810_window_east][090810_window_east]]

Data taken with the optical axis of the grating turret parallel wrt gravity (i.e. dewar window east).  Grating turret was moved between the primary and secondary grating positions a total of 200 times.  No reported errors.  Test was started at 3:40pm and completed at 5:15pm on August 10, 2009.  More details in [Mechanisms Logbook 1 page 81].

   * [[%ATTACHURL%/090810_window_up][090810_window_up]]

Data taken with the optical axis of the grating turret parallel wrt gravity (i.e. dewar window up).  Grating turret was moved between the primary and secondary grating positions a total of 200 times.  No reported errors.  Test was started at 8:57am and completed at 10:33am on August 10, 2009.  More details in [Mechanisms Logbook 1 page 80].

   * [[%ATTACHURL%/data090803][data090803]]

Data taken with the optical axis of the grating turret perpendicular wrt gravity.  Grating turret was moved between the primary and secondary grating positions a total of 200 times.  No reported errors.  Test was started at 10:06am and completed at 11:40am on August 3, 2009.  More details in [Mechanisms Logbook 1 page 78].  

   * [[%ATTACHURL%/data080309b][data080309b]]

Data taken with the optical axis of the grating turret parallel wrt gravity.  Grating turret was moved between the primary and secondary grating positions a total of 200 times.  No reported errors.  Test was started at 4:03pm and completed at 5:37pm on August 3, 2009.  More details in [Mechanisms Logbook 1 page 80]. 

---++ Grating Temperature Data

   * [[%ATTACHURL%/Grating_Cool_Down_Data_111908.dat][Grating_Cool_Down_Data_111908.dat]]

Data was taken on October 29, 2008 through November 19, 2008.  File contains the temperature readings over 22 days while the mechanisms transfered from 300K to 120K and back to 300K.  

<img src="%ATTACHURLPATH%/gratingtempprofile.jpg" alt="gratingtempprofile.jpg" width='1228' height='477' />

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
EXT	090810_window_east	r1	manage	431.2 K	2009-08-11 - 16:08	JasonFucik	Grating Turret Reliability 08-10-09 @ 90deg orientation
EXT	090810_window_up	r1	manage	430.5 K	2009-08-10 - 18:41	JasonFucik	Grating Turret Reliability 08-10-09 @ 90deg orientation
dat	Grating_Cool_Down_Data_111908.dat	r1	manage	10739.1 K	2009-08-04 - 19:23	JasonFucik	Grating Temp Profile during Transition from 300K to 120K
ppt	Grating_Turret.ppt	r1	manage	2057.5 K	2009-08-06 - 22:58	JasonFucik	Switch Locations and Configurations
EXT	data080309b	r1	manage	427.1 K	2009-08-04 - 16:42	JasonFucik	Grating Turret Reliability 08-03-09 @ 90deg orientation
EXT	data090803	r1	manage	426.6 K	2009-08-03 - 23:56	JasonFucik	Grating Turret Reliability 08-03-09 @ 0deg orientation
EXT	grating_repeat_080309	r1	manage	260.5 K	2009-08-03 - 22:08	JasonFucik	Grating Turret Repeatibility 08-03-09 @ 0deg orientation
EXT	grating_repeat_081009	r1	manage	253.0 K	2009-08-10 - 19:12	JasonFucik	Grating Turret Repeatibility 08-10-09 @ 90deg orientation
EXT	grating_repeat_081009b	r1	manage	223.0 K	2009-08-10 - 22:57	JasonFucik	Grating Turret Repeatibility 08-10-09 @ 90deg orientation
EXT	grating_repeat_081009c	r1	manage	90.0 K	2009-08-10 - 22:58	JasonFucik	Grating Turret Repeatibility 08-10-09 @ 90deg orientation

Topic revision: r13 - 2009-12-11 - HectorRodriguez

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