Hello Thomas,

We are using Nexus 10 (http://www.mindmedia.nl/english/nexus10.php) and Nexus 4 (http://www.mindmedia.nl/english/nexus4.php) for bio-signal acquisition in our project, currently we are implementing the PD [audio-visual engine] part of the system, we trace the signals by integrating a Python script to Mindmedia's Biotrace+ (http://www.mindmedia.nl/english/biotrace.php) and we stream data through OSC. 

Skin conductance sensor with the above combination, is like a hand touch sensor available for measuring pulse. On the other hand piezo contact  mic can be used as a sensor to receive pulse, but I guess it should be tested to see how much reliable output can be received though a contact mic.

Koray



-------------------------------------
M.Koray Tahiroglu
Media Lab,UIAH
tel: +358 468956602 ( in Finland only)
tel: +90 533 712 8245




On May 29, 2008, at 2:42 PM, pd-list-request@iem.at wrote:

Message: 1

Date: Thu, 29 May 2008 12:30:38 +0200

From: Thomas Grill <gr@grrrr.org>

Subject: [PD] pulse measurement using touch sensors

To: PD List send <pd-list@iem.at>

Message-ID: <933EED75-12D1-452C-AD25-49247C02ECBF@grrrr.org>

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Hi all,

does anyone have experience with measuring pulse using just hand touch  

sensors?

Which kind of sensors are feasible, is there any special signal  

conditioning necessary?


many thanks,

gr~~~


--

Thomas Grill

http://grrrr.org