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 http://mlab.taik.fi/~korayt 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 Content-Type: text/plain; charset="us-ascii"

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