Soft-matter sensor for proximity, tactile and pressure detection.
- Rui Rocha
- Pedro Lopes
- Aníbal T. de Almeida
- Mahmoud Tavakoli
- Carmel Majidi
(a) Combined proximity, touch, and pressure sensing is accomplished with multiple layers of patterned liquid metal (LM). (b) Proximity sensor composed of 9 capacitive electrodes arranged in rows and columns; (inset) complete multimodal sensor with capacitive array and resistive pressure transducer. (c) Multimodal sensor is capable of distinguishing between remote finger motion and contact.
![](https://spm.isr.uc.pt/wp-content/uploads/2019/08/qqz.png)
![](https://spm.isr.uc.pt/wp-content/uploads/2019/08/sadfghjk-1.png)
(a) Steps for fabricating multimodal sensor. The sensor is composed of the following four layer of EGaIn that are spray deposited using a stencil: (i) pressure transducer, (ii) top capacitor electrodes, (iii) bottom capacitor electrodes, (iv) electromagnetic shield. (b) Cross-sectional view of sensor layup. The EGaIn terminals of the sensor interface witha flex PCB connector through either (c) direct contact or
(d) a z-axis conductive elastomer composed of verticallyaligned columns of Ag-coated Ni microspheres that is only conductive through its thickness.
Soft-matter sensor for proximity, tactile and pressure detection.
R. Rocha, P. Lopes, A. T. de Almeida, M. Tavakoli and C. Majidi, “Soft-matter sensor for proximity, tactile and pressure detection,” 2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Vancouver, BC, 2017, pp. 3734-3738.
doi: 10.1109/IROS.2017.8206222