| 摘要 |
A wet shave shaving system which contains an in situ sensor within the razor cartridge or razor handle. The sensor preferably comprises either a piezoelectri c or a piezoresistive material which produces an electrical signal or resistance change when it is strained. In an active feedback system, the signal would be transferred from the cartridge to the razor handle where an electronically-active actuator would extend or retract as necessary to position the cartridge to produce a shave with a constant shave force. In a p assive feedback system, the signal would be transferred from the cartridge to the handl e where an electronically-activated element, such as an indicator light, would be activated to produce an indication to the user that he or she should reposition the razor to produce a c onstant shave force. In an alternative embodiment, the passive feedback system signal would pr ovide an indication to the user that the blades are worn and the cartridge or razor shoul d be replaced.
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