NBC 2009August2 - Revision history

Dichro at 22:43, 2 August 2009

2009-08-02T22:43:59Z

← Older revision		Revision as of 15:43, 2 August 2009
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	Skin resistance. We tested this after the other tests, and found that the resistance started low and climbed. These numbers are about when we got sick of waiting for it to stabilize. Mikolaj: 55 kOhms, Orion: 50 kOhms, Mike: 116 kOhms, Rachel: 300 kOhms		Skin resistance. We tested this after the other tests, and found that the resistance started low and climbed. These numbers are about when we got sick of waiting for it to stabilize. Mikolaj: 55 kOhms, Orion: 50 kOhms, Mike: 116 kOhms, Rachel: 300 kOhms

			Results were recorded chronologically. MikeW and Mikolaj observed notable sweating on hands, Orion and Rachel not at all. Also belatedly noticed that symmetry was way skewed to one side until MikeW's second test of second round.

			General conclusions: 1mA seems to be a sensible upper bound for current. Next step is to build an inductor-based current source based on standard dc-dc boost topology.

			Videos: http://www.youtube.com/watch?v=YRH0xjcnHV4 http://www.youtube.com/watch?v=XSz21QeLd-U

	{\| border=1		{\| border=1
Line 168:		Line 174:
	\| beginning discomfort		\| beginning discomfort
	\|-}		\|-}

	Results were recorded chronologically. MikeW and Mikolaj observed notable sweating on hands, Orion and Rachel not at all. Also belatedly noticed that symmetry was way skewed to one side until MikeW's second test of second round.

	~~General conclusions: 1mA seems to be a sensible upper bound for current. Next step is to build an inductor-based current source based on standard dc-dc boost topology.~~

	[[User:Dichro\|Mikolaj Habryn]] 15:10, 2 August 2009 (PDT)		[[User:Dichro\|Mikolaj Habryn]] 15:10, 2 August 2009 (PDT)

	[[Category:Sensebridge]]		[[Category:Sensebridge]]

Dichro at 22:10, 2 August 2009

2009-08-02T22:10:50Z

← Older revision		Revision as of 15:10, 2 August 2009
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	Results were recorded chronologically. MikeW and Mikolaj observed notable sweating on hands, Orion and Rachel not at all. Also belatedly noticed that symmetry was way skewed to one side until MikeW's second test of second round.		Results were recorded chronologically. MikeW and Mikolaj observed notable sweating on hands, Orion and Rachel not at all. Also belatedly noticed that symmetry was way skewed to one side until MikeW's second test of second round.

			General conclusions: 1mA seems to be a sensible upper bound for current. Next step is to build an inductor-based current source based on standard dc-dc boost topology.

			[[User:Dichro\|Mikolaj Habryn]] 15:10, 2 August 2009 (PDT)

			[[Category:Sensebridge]]

Dichro at 21:53, 2 August 2009

2009-08-02T21:53:40Z

@@ Line 1: / Line 1: @@
 '''Electrostim'''
-More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valiant experimenter.
+More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valiant experimenters.
 Skin resistance. We tested this after the other tests, and found that the resistance started low and climbed.  These numbers are about when we got sick of waiting for it to stabilize. Mikolaj: 55 kOhms, Orion: 50 kOhms, Mike: 116 kOhms, Rachel: 300 kOhms
@@ Line 143: / Line 143: @@
 | 7
 | finger twitches at 7Hz
-|-}
+Results were recorded chronologically. MikeW and Mikolaj observed notable sweating on hands, Orion and Rachel not at all. Also belatedly noticed that symmetry was way skewed to one side until MikeW's second test of second round.

Dichro at 21:45, 2 August 2009

2009-08-02T21:45:25Z

← Older revision		Revision as of 14:45, 2 August 2009
Line 2:		Line 2:

	More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valiant experimenter.		More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valiant experimenter.

			Skin resistance. We tested this after the other tests, and found that the resistance started low and climbed. These numbers are about when we got sick of waiting for it to stabilize. Mikolaj: 55 kOhms, Orion: 50 kOhms, Mike: 116 kOhms, Rachel: 300 kOhms

	{\| border=1		{\| border=1
Line 13:		Line 15:
	\| 11		\| 11
	\| 0.5		\| 0.5
	\| 60		\| 60
	\| initial sensation		\| initial sensation
	\|-		\|-
Line 19:		Line 21:
	\| 14		\| 14
	\| 0.6		\| 0.6
	\| 60		\| 60
	\| Definitely feel tickle		\| Definitely feel tickle
	\|-		\|-

Dichro at 21:37, 2 August 2009

2009-08-02T21:37:02Z

@@ Line 64: / Line 64: @@
 | distinctly uncomfortable
 |-
-| Ryan
+| Orion
 | 7
 | 0.2
@@ Line 70: / Line 70: @@
 | initial sensation
 |-
-| Ryan
+| Orion
 | 10
 | 0.5
@@ Line 76: / Line 76: @@
 | distinct sensation
 |-
-| Ryan
+| Orion
 | 15
 | 1.0
 | 60
 | strong muscular influence
 |-}

SpammerHellDontDelete: New page: '''Electrostim''' More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valian...

2009-08-02T21:26:39Z

New page: '''Electrostim''' More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valian...

New page

'''Electrostim'''

More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valiant experimenter.

{| border=1
! Subject
! V
! mA
! f
! Perception
|-
| MikeW
| 11
| 0.5
| 60
| initial sensation
|-
| MikeW
| 14
| 0.6
| 60
| Definitely feel tickle
|-
| MikeW
| 18
| 0.9
| 60
| muscle contractions (bordering on v. uncomfortable)
|-
| MikeW
| 22
| 1.2
| 60
| stops being fun
|-
| Rachel
| 6
| 0.15
| 60
| initial sensation
|-
| Rachel
| 12
| 0.5
| 60
| can distinguish brief pulses
|-
| Rachel
| 14
| 0.9
| 60
| distinct buzzing and less precise location sensation when tapping
|-
| Rachel
| 16
| 1.0
| 60
| muscle twitches in hand
|-
| Rachel
| 18
| 1.25
| 60
| distinctly uncomfortable
|-
| Ryan
| 7
| 0.2
| 60
| initial sensation
|-
| Ryan
| 10
| 0.5
| 60
| distinct sensation
|-
| Ryan
| 15
| 1.0
| 60
| strong muscular influence
|-}