Ultrafast Integrated Humidity and Temperature Sensor Based on Carbon Nanotubes, and a Sensor Controller System

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A flexible, resistive-type, integrated humidity and temperature sensor that is made of carbon nanotubes (CNTs) will be presented. The sensor resolution is ~1% for relative humidity and <0.5°C for temperature. The sensor response and settling times are 50 ms and 2 ms respectively, which are more than 100 times and more than 10 times faster than existing state-of-the-art capacitive-type sensors. The humidity-sensing component of the sensor is also highly sensitive to human breathing. In addition, a sensor controller system, integrated with the sensor, will be presented. The controller system has two decoupled outputs for direct, high-speed measurements of relative humidity and temperature and is capable of direct measurement of absolute humidity. Sensor interchangeability makes the system a versatile platform to sense multiple analytes. The system implements various wireless technology and operating systems.

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Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2014: Graphene, CNTs, Particles, Films & Composites
Published: June 15, 2014
Pages: 1 - 4
Industry sector: Advanced Materials & Manufacturing
Topicss: Carbon Nano Structures & Devices, Graphene & 2D-Materials
ISBN: 978-1-4822-5826-4