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US 6,661,232 B1Granted
Electric potential sensor and electronic apparatus using the same
AssigneeMurata Manufacturing Co., Ltd.
InventorChikahiro Horiguchi
Life of this patent
Estimating the term…
Abstract
An electric potential sensor comprises a tuning fork having two legs; a detecting electrode provided on one leg of the tuning fork so as to face a surface of which an electric potential is to be detected; a driving piezoelectric member provided on at least one leg of the tuning fork; and feedback piezoelectric members respectively provided on both legs of the tuning fork.
Claims10
An electric potential sensor comprising:
- a tuning fork having first and second legs;
- a detecting electrode provided on one leg of the tuning fork so as to face a surface of which an electric potential is to be detected;
- at least one driving piezoelectric member, said at least one driving piezoelectric member being provided on at least one leg of the tuning fork;
- and
- at least first and second feedback piezoelectric members, each of the legs of the tuning fork having at least one of the feedback piezoelectric members provided thereon.
2 more elements
An electronic apparatus comprising:
- a photosensor drum;
- and
- an electric potential sensor comprising:
- a tuning fork having first and second legs;
- a detecting electrode provided on one leg of the tuning fork so as to face a surface of said photosensor drum of which an electric potential is to be detected;
- at least one driving piezoelectric member, each of the driving piezoelectric members being provided on at least one leg of the tuning fork;
- and
- at least first and second feedback piezoelectric members, each of the legs of the tuning fork having at least one of the feedback piezoelectric members provided thereon.
5 more elements
Dependencies are inferred from the claim text.