JPS6214900U - - Google Patents

Info

Publication number
JPS6214900U
JPS6214900U JP10565285U JP10565285U JPS6214900U JP S6214900 U JPS6214900 U JP S6214900U JP 10565285 U JP10565285 U JP 10565285U JP 10565285 U JP10565285 U JP 10565285U JP S6214900 U JPS6214900 U JP S6214900U
Authority
JP
Japan
Prior art keywords
surface electrode
mfb
sensor
piezoelectric element
indicates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10565285U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP10565285U priority Critical patent/JPS6214900U/ja
Publication of JPS6214900U publication Critical patent/JPS6214900U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案のＭＦＢ用センサの一実施例
を示す概要図、第２図はこの考案のＭＦＢ用セン
サをスピーカに取り付けたときの側面図、第３図
はバイモルフ構造の圧電素子の動作を示す説明図
である。 図中、１，２は圧電結晶板、３は中間電極板、
４，５は上面電極と下面電極、６はリード線、７
はベース部、８はＩＣ回路、９は支持台、１０は
ＭＦＢ用センサ、３０は振動板を示す。 Fig. 1 is a schematic diagram showing an embodiment of the MFB sensor of this invention, Fig. 2 is a side view of the MFB sensor of this invention when attached to a speaker, and Fig. 3 is the operation of a piezoelectric element with a bimorph structure. FIG. In the figure, 1 and 2 are piezoelectric crystal plates, 3 is an intermediate electrode plate,
4 and 5 are upper surface electrodes and lower surface electrodes, 6 is a lead wire, and 7
8 indicates a base portion, 8 indicates an IC circuit, 9 indicates a support base, 10 indicates an MFB sensor, and 30 indicates a diaphragm.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] バイモルフ構造で形成した圧電素子の上面電極
と下面電極を接地電位とし、中間電極を振動検出
端子としたことを特徴とするＭＦＢ用センサ。 A sensor for MFB, characterized in that an upper surface electrode and a lower surface electrode of a piezoelectric element formed with a bimorph structure are set to a ground potential, and an intermediate electrode is used as a vibration detection terminal.
JP10565285U 1985-07-12 1985-07-12 Pending JPS6214900U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10565285U JPS6214900U (en) 1985-07-12 1985-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10565285U JPS6214900U (en) 1985-07-12 1985-07-12

Publications (1)

Publication Number Publication Date
JPS6214900U true JPS6214900U (en) 1987-01-29

Family

ID=30980286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10565285U Pending JPS6214900U (en) 1985-07-12 1985-07-12

Country Status (1)

Country Link
JP (1) JPS6214900U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01188200A (en) * 1988-01-22 1989-07-27 Hitachi Ltd Piezoelectric detector
JP2007020152A (en) * 2005-06-07 2007-01-25 Nidec Pigeon Corp Speaker

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5255000U (en) * 1975-10-20 1977-04-20
JPS57123798A (en) * 1981-01-22 1982-08-02 Sanyo Electric Co Ltd Motional feedback type speaker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5255000U (en) * 1975-10-20 1977-04-20
JPS57123798A (en) * 1981-01-22 1982-08-02 Sanyo Electric Co Ltd Motional feedback type speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01188200A (en) * 1988-01-22 1989-07-27 Hitachi Ltd Piezoelectric detector
JP2007020152A (en) * 2005-06-07 2007-01-25 Nidec Pigeon Corp Speaker

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