The paper deals with a high-resolution vision-based force sensor integrated on dual micromanipulators operating under a light microscope. Its operating principle is based on the estimation of the contact forces of the handled object through vision deflection measurement of the manipulator tip. Firstly, the simulation and experimental results are compared to verify the validity of the measurement principle. Then, an analysis of the design requirements of the buckling-type force sensor is investigated. Finally, image processing techniques are applied for the precise estimation of the force sensor performances.
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