Small capacitive graphene-based sensors

Reference number 2018-03321
Coordinator Aninkco AB
Funding from Vinnova SEK 300 000
Project duration December 2018 - May 2019
Status Ongoing
Venture The strategic innovation programme for graphene
Call 2017-05429-en

Purpose and goal

With this feasibility study, we will explore the possibility of developing graphene-based contactless capacitive sensors to give the market smaller and flexible displacement and gap sensors. The nature of graphene also offers the possibility of using these sensors in applications at high temperature and in high electric and magnetic fields. The objectives of our study are 50% less physical size than conventional sensors, for high temperature applications (high temperature means 260 C and higher), as well as minimized heating in high electric and magnetic fields.

Expected results and effects

Capacitive sensors are often used as contactless displacement and gap sensors. For example, they can be used in generators and electric motors to monitor the air gap between the rotor and the stator. Using graphene to make them smaller and flexible provides additional use in physically small and difficult areas in industrial process equipment. The project will be conducted in cooperation between Aninkco AB, MacDonald-Arnskov AB and KTH Royal Institute of Technology. Together, this group has knowledge from material to electronics to applications.

Planned approach and implementation

The project begins by selecting a possible sensor type for a likely end product. In order to avoid patent infringement, we will study our freedom-to-operate to manufacture and sell this graphene based capacitive displacement and gap sensors, and a business plan will be initiated. Through practical studies, we will verify the potential of our graphene material, find suitable dielectric and encapsulation materials, as well as specify and build a test sensor, and finally measure with test systems similar to real industrial installations.

The project description has been provided by the project members themselves and the text has not been examined by our editors.