Figure 1

(a) Elements of TWE technology (a) shows a receiver consisting of 2 rings of biocompatible material and the piezoelectric sensors. (b) Emitter consisting of an electromechanical actuator, a specimen contact element, and (c) configuration of the device where emitter and receiver share the same axis and are located in the same plane of contact with the specimen. (b) shows the probe of Innitius, with the torsional wave transducer into a probe for measuring cervix stiffness.