{"title":"Conductive Rubber Sheet / Stretch Sensor- 200mm x 200mm x 1mm","handle":"conductive-rubber-sheet-stretch-sensor-200mm-x-200mm-x-1mm","url":"/products/conductive-rubber-sheet-stretch-sensor-200mm-x-200mm-x-1mm","description":"This rubber sheet is made of the same carbon-black impregnated rubber material that our conductive rubber cord uses. Traditionally it would be used for EMF shielding, or conductive gaskets - but it's very fun to play with and we think it makes for an interesting stretch sensor or maybe a conductive material that is soft and conforming.In a 'relaxed' state, the bulk sheet resistivity is about 70 ohm*mm. As you pull on it, the resistance increases (the particles get further apart). You can stretch the rubber about 50-70% longer than the resting length, so a 6\" piece shouldn't be stretched more than 10\". Once the force is released, the rubber will shrink back, although its not very 'fast' and it takes a minute or two to revert to its original length. It's not a true linear sensor, and the resistance may vary from batch to batch, so we consider it a way to measure stretching motion but isn't really precise.This stuff is fun, so we give you a 200mm by 200mm square with 1mm thickness. You can easily cut this material with scissors or a die. You can use it as a conductor or add a 100 ohm resistor as a divider, then use our handy Thermistor tutorial to measure the analog voltage and convert that back to resistance.","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2060,"title":"Default Title","sku":"AF-5463","price":16.21,"on_sale":false,"in_stock":true,"available_quantity":6,"option1":"Default Title"}]}