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Messages 1 - 30 of 839   Oldest  |  < Older  |  Newer >  |  Newest
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1
Nick, This is a great idea for a discussion group. Thanks for creating it. I'm having issues with a GPS receiver, so I'll post my plea for help soon. chris...
Chris Odom
chris_odom_g...
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Nov 2, 2006
3:39 pm
2
Nick, very good idea for a group. I'm also involved in acoustics, day job and serious hobby. For fun I'm doing an acoustical study of snapping shrimp in...
Doug
k6sts
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Nov 2, 2006
11:08 pm
3
I was looking for a sensor-related forum on the web, and I couldn't find one. So, I've decided to start this group. Since sensors are multidisciplinary...
Nick Alexeev
kender_a
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Nov 3, 2006
3:50 am
4
GPS is, probably, the sensor that I've studied the most with. I've worked for the GPS lab at Stanford. Right now I work for one of the GPS startups. I've...
Nick Alexeev
kender_a
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Nov 3, 2006
3:57 am
5
Well, as there seems to be quite a few members registered, and noone is talking, maybe someone would like to chime in on this one. I've got an existing panel...
Don Kirby
psyclopedia
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Nov 9, 2006
10:06 pm
6
Here's a great "touch sensor demo" http://ted.com/tedtalks/tedtalksplayer.cfm?key=j_han <http://ted.com/tedtalks/tedtalksplayer.cfm?key=j_han&flashEnabled=1> ...
stevech
stevech11
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Nov 10, 2006
8:25 am
7
Looked up the IP67 on Google and found that it means 2 things: - Totally protected against dust - Protected against the effect of immersion between 15cm and 1m...
Nick Alexeev
kender_a
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Nov 12, 2006
1:26 am
8
Thanks for your input Nick, ... Industrial ... In this particular application, it won't work, but it's an interesting idea nonetheless.. I'll have to remember...
Don Kirby
psyclopedia
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Nov 12, 2006
12:24 pm
9
I ran accross this a couple of days ago. I don't know what it would take to make a working one. It's an LED touch panel. The video is kink of big. I have no...
cc1865
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Nov 12, 2006
1:36 pm
10
... Very interesting. I wonder if the LEDs are switched between emitting and sensing, using neighbors as sources when sensing. The startup shows a row scan,...
Tom Becker
b19063
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Nov 12, 2006
4:40 pm
11
Yes, that's how they are doing it. http://motestruments.com/led-touch-sensor-circuit/ I just threw it out because it's different. I don't know if it would work...
cc1865
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Nov 12, 2006
5:07 pm
12
The LEDs reminded me that I have an optical flow meter here somewhere; the sensor is a paddle wheel in liquid flow that interrupts an optical path between the...
Tom Becker
b19063
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Nov 12, 2006
5:20 pm
13
May be, each pixel has a pair of LEDs with a common lens. Like the 2-color LEDs. There might be a more brute-force approach to a reflective optical touch...
Nick Alexeev
kender_a
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Nov 13, 2006
10:46 am
14
... would work? That's the path I've been experimenting with recently. Emmitter on one side, receiver on the other. I've casted some small prisms from ...
Don Kirby
psyclopedia
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Nov 14, 2006
2:09 am
15
... 2-color LEDs. Hmmm. That leads to the question: how well can a green LED detect red light?...
Tom Becker
b19063
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Nov 14, 2006
2:36 am
16
I am designing a product around the SCP1000 pressure sensor from VTI Technologies: www.vti.fi I plan to use the breakout board from Sparkfun: ...
Victor Fraenckel
vfraenc1
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Nov 14, 2006
7:41 pm
17
Wow! That's a neat pressure sensor! Although, it's kinda unfortunate that there's no breakout board for the I2C version. May be this article will help you get...
Nick Alexeev
kender_a
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Nov 15, 2006
12:53 am
18
FYI, I just started a forum to help Micromega support their uM-FPU math coprocessors that I want to use. Selfishly, I want others to work with these things,...
Tom Becker
b19063
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Nov 16, 2006
5:51 pm
19
Hi, I do a lot of commercial marine robotics and sensors. I am looking for a better way for a robotic vehicle to track its position when its wheels are...
sherpadoug
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Nov 20, 2006
3:06 pm
20
One thing you might consider, is to use the snesors from one of the new laser mice--they are designed to be able to work at a faster rate, and from what I have...
Davidh359@...
davidjh38
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Nov 20, 2006
7:24 pm
21
... over a longer distance... Perhaps, but focus is critical and the depth-of-field of the HP lens that is supplied with the sensor is very narrow (+/-0.2mm). ...
Tom Becker
b19063
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Nov 20, 2006
10:32 pm
22
... I have quartz halogen lights for video on the vehicle. I just have to get the grazing angle right for the tracker. Do the laser chips need laser light to...
sherpadoug
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Nov 20, 2006
11:48 pm
23
... Find May, 2004 Nuts and Volts. Tom...
Tom Becker
b19063
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Nov 21, 2006
4:10 am
24
I have the uM-FPU V3 running on a BX-24p via fast SPI. Cam Thompson (of Micromega) has been very generous with his time helping me get a fundamental...
Tom Becker
b19063
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Nov 22, 2006
5:55 pm
25
When you get an image, what algorithm are you goind to use to calculate the displacement? 2D correlation?...
Nick Alexeev
kender_a
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Nov 25, 2006
8:39 am
26
... That is all handled internal to the sensor chip. It has some sort of specialized DSP core so the chip outputs X and Y displacements as well as a light...
sherpadoug
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Nov 25, 2006
2:53 pm
27
With an optical sensor, do you have to make sure that your rover doesn't lift the silt from the bottom? Alternatively (and obviously) you could use non-driven...
Nick Alexeev
kender_a
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Nov 27, 2006
7:33 am
28
... With free swimming underwater robotic vehicles there is something called "dustout" when you kick up seidment which blinds the cameras, and therefore...
Douglas Butler
sherpadoug
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Nov 27, 2006
2:17 pm
29
Doug, What part of the world are you in? I'm located in CA near Sacramento and have a Seabotix LBV150. I have some future plans that may call for a positioning...
Doug Niessen
k6sts
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Nov 27, 2006
4:43 pm
30
... Doug, I am on Cape Cod Mass. Imetrix, the company I worked for when we designed the Lampray went bankrupt about three years ago. Now two Lamprays exist,...
Douglas Butler
sherpadoug
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Nov 28, 2006
1:45 am
Messages 1 - 30 of 839   Oldest  |  < Older  |  Newer >  |  Newest
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