Engineering 2013July - Revision history

Monnier at 11:44, 19 July 2013

2013-07-19T11:44:34Z

← Older revision		Revision as of 11:44, 19 July 2013
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	* change colors of AMP(OPD) from red/blue to something that doesn't appear match the flux(OPD) graphs		* change colors of AMP(OPD) from red/blue to something that doesn't appear match the flux(OPD) graphs

			*champ. add more readout modes.. shorter than 30micron stroke, slower than 250 hz. we need a 'phase trakcing' mode this probably like 20 microns.

Monnier at 03:12, 18 July 2013

2013-07-18T03:12:12Z

← Older revision		Revision as of 03:12, 18 July 2013
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	*c) I took pictures of the tip tilt offsets. actualy B6 was worse. about 3/5 or so away from center. I'm asking judit if problem.		*c) I took pictures of the tip tilt offsets. actualy B6 was worse. about 3/5 or so away from center. I'm asking judit if problem.
	*d) check on CHAMP table.		*d) check on CHAMP table.
	~~f) check shear going out through DL and beam compressor by looking at M10 target and moving Delaly the full length~~. ~~the image should~~ not ~~move~~.		not perfect... but B5 is not so different off then B2.. so not clear.

	is there something funny about aligning on laser on champ? due to visible light not traversing the same ir apth, eg. wedge on dicroics?		*f) check shear going out through DL and beam compressor by looking at M10 target and moving Delaly the full length. the image should not move.
			I will do this tongith
			*is there something funny about aligning on laser on champ? due to visible light not traversing the same ir apth, eg. wedge on dicroics?

			the coude alignment was tweaked up, so maybe things will be better.

Monnier at 03:11, 18 July 2013

2013-07-18T03:11:24Z

← Older revision		Revision as of 03:11, 18 July 2013
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	BEAM 2 looked bad on CHAMP last night.		BEAM 2 looked bad on CHAMP last night.

	a) ~~setup engineering beam on~~ B1 / B2~~. (could also do this with visbeams fi we trust~~		*a) I set up visbeams and checked alignment carefully all the way for B1,B2, B5,B6
	~~visbeams and eng beam aligned... although hard to check champ spot fluxes because of double-spots)~~		*b) for B2 I checked carefully that the retro in place works well compared to actually adjustable large retro. no change in
			tiptilt center either.
	b) ~~make sure aligned~~ well.		*c) I took pictures of the tip tilt offsets. actualy B6 was worse. about 3/5 or so away from center. I'm asking judit if problem.
	c) ~~put beam through CHAMP (ideally using engbeam~~ or ~~at most using dicroic only)~~		*d) check on CHAMP table.
	~~we don~~'~~t want to touch internal champ optics ideally~~.
	d) ~~look at tiptilt centers.~~
	~~e) we repeat this using other retros to see if the B1=W1, B2=S2 retros are not good~~.
	f) check shear going out through DL and beam compressor by looking at M10 target and moving Delaly the full length. the image should not move.		f) check shear going out through DL and beam compressor by looking at M10 target and moving Delaly the full length. the image should not move.

	is there something funny about aligning on laser on champ? due to visible light not traversing the same ir apth, eg. wedge on dicroics?		is there something funny about aligning on laser on champ? due to visible light not traversing the same ir apth, eg. wedge on dicroics?

Monnier at 01:00, 18 July 2013

2013-07-18T01:00:47Z

← Older revision		Revision as of 01:00, 18 July 2013
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	""SHOULD continue alignment game for beam 3-6"		""SHOULD continue alignment game for beam 3-6"



			== 2013Jul17 lab notes ==

			BEAM 2 looked bad on CHAMP last night.

			a) setup engineering beam on B1 / B2. (could also do this with visbeams fi we trust
			visbeams and eng beam aligned... although hard to check champ spot fluxes because of double-spots)

			b) make sure aligned well.
			c) put beam through CHAMP (ideally using engbeam or at most using dicroic only)
			we don't want to touch internal champ optics ideally.
			d) look at tiptilt centers.
			e) we repeat this using other retros to see if the B1=W1, B2=S2 retros are not good.
			f) check shear going out through DL and beam compressor by looking at M10 target and moving Delaly the full length. the image should not move.

			is there something funny about aligning on laser on champ? due to visible light not traversing the same ir apth, eg. wedge on dicroics?

Monnier at 12:39, 17 July 2013

2013-07-17T12:39:17Z

← Older revision		Revision as of 12:39, 17 July 2013
Line 87:		Line 87:
	* whens aving data, the amp[opd] of first BC is corrupted but seems to not affect tracking.		* whens aving data, the amp[opd] of first BC is corrupted but seems to not affect tracking.

	* change colors of AMP(OPD) from red/blue to something that doesn't appear match the flux(t) graphs		* change colors of AMP(OPD) from red/blue to something that doesn't appear match the flux(OPD) graphs

Monnier at 12:39, 17 July 2013

2013-07-17T12:39:01Z

← Older revision		Revision as of 12:39, 17 July 2013
Line 87:		Line 87:
	* whens aving data, the amp[opd] of first BC is corrupted but seems to not affect tracking.		* whens aving data, the amp[opd] of first BC is corrupted but seems to not affect tracking.

			* change colors of AMP(OPD) from red/blue to something that doesn't appear match the flux(t) graphs

Monnier at 10:42, 17 July 2013

2013-07-17T10:42:01Z

← Older revision		Revision as of 10:42, 17 July 2013
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	* improve usability of champ gui. the top part of the gui should not be so sluggish. only the plots need to have a timer, no the other widgets.		* improve usability of champ gui. the top part of the gui should not be so sluggish. only the plots need to have a timer, no the other widgets.

			* fringe 6 B5/B6 pull down state stays in search , doesn't go to semi-lock visually

			* whens aving data, the amp[opd] of first BC is corrupted but seems to not affect tracking.

Monnier at 09:04, 17 July 2013

2013-07-17T09:04:03Z

← Older revision		Revision as of 09:04, 17 July 2013
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	[[2013July JDM Observing Logs]]		[[2013July JDM Observing Logs]]
	----		----
	== Goals ==		== Top-Level Goals ==

	* Install new wolverine2		* Install new wolverine2
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	try to improve grounding on mirc?		try to improve grounding on mirc?
	* go rid of many peaks by moving mirc ground from the overhead pipe to the champ enclosure which is isolated by 3 chokes. maybe we need more chokes.		* go rid of many peaks by moving mirc ground from the overhead pipe to the champ enclosure which is isolated by 3 chokes. maybe we need more chokes.
			*no luck. moving round actually did nothing the next day.. so probably just time variability.


	turn on vega camera and check interfermetence.		turn on vega camera and check interfermetence.
			* did not cause spikes.


	measure flux and xchan ratios for each beam with WL source.		measure flux and xchan ratios for each beam with WL source.
	> mirc and champ (?)		> mirc and champ (?)
			> see notes below.


	check tiptlit centers.		check tiptlit centers.
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	spike suppression algorithm being too primitive.		spike suppression algorithm being too primitive.

			* improve usability of champ gui. the top part of the gui should not be so sluggish. only the plots need to have a timer, no the other widgets.

Monnier at 11:04, 16 July 2013

2013-07-16T11:04:24Z

← Older revision		Revision as of 11:04, 16 July 2013
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	*champ filter SPIKES out of amplitude(t) gui plots		*champ filter SPIKES out of amplitude(t) gui plots

			* make sure search to semi-lock can catch spikes of good seeing (lucky fringes) but
			not get screwed up by huge spikes caused by electronics. currently it seems the system misses real fringes probably due to
			spike suppression algorithm being too primitive.

Monnier at 03:11, 16 July 2013

2013-07-16T03:11:26Z

← Older revision		Revision as of 03:11, 16 July 2013
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	*B6R6 70cts. elongated image.		*B6R6 70cts. elongated image.
	*B6L1 40 cts.		*B6L1 40 cts.


			""SHOULD continue alignment game for beam 3-6"