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Sense Stage Workshop » Stretch sensor
Home > Sensors > Stretch sensor

Stretch sensor

May 10th, 2009

We will have 2 elbow and 2 knee units measuring the current state of the joint. We measure this with a stretch sensor that goes along the elbow or knee, so that as you bend the joint, the sensor stretches out.

From the Robotshop website:

4″ (or 6″) long flexible cylindrical cord
• Measures stretch, displacement and force
• Changes resistance when stretched

The Images Scientific Flexible Stretch Sensor is a unique component that changes resistance when stretched. When relaxed the sensor material has a nominal resistance of 1000 ohms per linear inch. As the stretch sensor is stretched the resistance gradually increases. When the sensor is stretched to 150% of its original length (2″ X 150% = 3″), its resistance will approximately double to 2.0 Kohms per inch.

The stretch sensor is a new way to measure stretch, displacement and force. The sensor is a flexible cylindrical cord with hook electrical terminals at each end. The sensor measures 4 (or 6) inches long, not including the electrical terminals, and only .060 inches diameter!

Amount in workshop: 2 times 4″ and 2 times 6″

Author: marije Categories: Sensors Tags: ,
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