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The experimental setup as seen during the continually applied pressure part of the protocol. The Phantom (A) is resting on a force-sensing plate (B) whilst the linear actuator (C) is descending. The PPG sensor (D) is seen resting on the phantom in this example during the descending phase of the protocol. The loadcell (E) can be seen under the force-sensing plate. For illustrative purposes, this depiction shows the use of a blue dye to highlight the artificial vessel better.
