Sensor preparation method, sensor and recognition device

The invention relates to the technical field of sensors, in particular to a sensor preparation method, a sensor and a recognition device. The preparation method of the sensor comprises the following steps: adding the modified nano carbon fiber to the elastomer to obtain a doped elastomer; forming electrode layers on the upper and lower surfaces of the doped elastomer respectively; and forming a packaging layer on the surface of the electrode layer away from the doped elastomer to obtain the sensor. The graphite structure of the modified nano carbon fiber material is arranged disorderly, so that an aggregation state structure is not formed; a certain amount of modified carbon nanofibers are doped on an elastomer, an internal miniature capacitor is constructed, the sensor prepared by the method adapts to acquisition of complex environment pressure signals, multi-modulus acquisition can be realized, energy consumption and equipment maintenance cost are reduced, and data processing efficiency is improved. 本发明涉及传感