This sensor changes its resistance when being bent.
Bent is detected in one direction only.
Highly flexible, very robust, laminated.
about 2K Ohm stretched, 200KOhm bent
sensing area length 6cm
sensor overall length 8.4cm
http://i531.photobucket.com/albums/dd355/innerbreed/bend-sensor-size.jpg
nodna.com/xtc/product_info.p … 8-5cm.html
such application could be used as a sensor for detecting the opening of a door or even maybe the feedback in a robot app!