I am currently designing a microgripper for which I need a proximity/distance sensor.
Please refer to the image below for design requirements.
Due to the force application (as shown in the image), the surfaces A and B undergo bending phenomenon. I need sensors to identify the distance between these surfaces during the bending process. I plan to use capacitive proximity sensor IC (as the material is plastic) either on surface A or both of them to create a capacitor like condition and measure the change in the distance between them.
The dimensions surface are 18mm(length) and 4mm(height)
Could you suggest which proximity solution might work in this case? My idea is to use the two surfaces as capacitor plates but I need help in how to create a detection system.