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5V, 1A Step-Up/Step-Down Voltage Regulator S13V10F5 $9.70

Conductive Rubber Sheet / Stretch Sensor- 200mm x 200mm x 0.5mm

$9.50

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 50 ohm*mm. As you pull on it, the resistance increases (the particles get further apart).

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  • Description
Description

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 50 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 it’s 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 0.5mm 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.

Technical Details

Product Dimensions: 200.0mm x 200.0mm x 0.5mm / 7.9″ x 7.9″ x 0.0″

Product Weight: 22.6g / 0.8oz

https://robot-r-us.com.sg/assets/uploads/img/prod/Sensors/Force_Flex_Pressure/5464Conductive.mp4

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