JPS6468112A - Piezoelectric vibrator having adjusting function of oscillated frequency - Google Patents

Piezoelectric vibrator having adjusting function of oscillated frequency

Info

Publication number
JPS6468112A
JPS6468112A JP22548887A JP22548887A JPS6468112A JP S6468112 A JPS6468112 A JP S6468112A JP 22548887 A JP22548887 A JP 22548887A JP 22548887 A JP22548887 A JP 22548887A JP S6468112 A JPS6468112 A JP S6468112A
Authority
JP
Japan
Prior art keywords
electrodes
capacitor
electrode
piezoelectric substrate
clockwise
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
JP22548887A
Other languages
Japanese (ja)
Inventor
Takeshi Oshima
Koichi Hirama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Communication Equipment Co Ltd
Original Assignee
Toyo Communication Equipment Co Ltd
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 by Toyo Communication Equipment Co Ltd filed Critical Toyo Communication Equipment Co Ltd
Priority to JP22548887A priority Critical patent/JPS6468112A/en
Publication of JPS6468112A publication Critical patent/JPS6468112A/en
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To eliminate the need for the adjustment at manufacture by forming a capacitor part required for the oscillation circuit on a piezoelectric substrate and adjusting the capacitor part so as to establish the oscillating condition while being mounted onto an external circuit. CONSTITUTION:An exciting electrode 2 having a diameter in response to a desired resonance frequency and electrodes 6, 7 prolonged from a lead pattern 5 clockwise and counter clockwise are formed to the center of the discoid piezoelectric substrate 1. Moreover, hart of electrodes 4, 6, 7 of the shape similar to, said electrode pattern rotated clockwise by 90 deg., electrodes 7', 6', 4' and an exciting electrode 2' opposed to each other while clipping the exciting electrode 2 onto the piezoelectric substrate 1 are provided on the opposed side. Terminals F, H, and G of crystal vibrator are connected to a base B, an emitter E and earth of the external circuit, and a laser, for example, is radiated to the electrode of a capacitor Cv in this state to adjust its capacitance thereby obtaining a desired oscillated frequency and the capacitor is mounted in the case and sealed.
JP22548887A 1987-09-09 1987-09-09 Piezoelectric vibrator having adjusting function of oscillated frequency Pending JPS6468112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22548887A JPS6468112A (en) 1987-09-09 1987-09-09 Piezoelectric vibrator having adjusting function of oscillated frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22548887A JPS6468112A (en) 1987-09-09 1987-09-09 Piezoelectric vibrator having adjusting function of oscillated frequency

Publications (1)

Publication Number Publication Date
JPS6468112A true JPS6468112A (en) 1989-03-14

Family

ID=16830108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22548887A Pending JPS6468112A (en) 1987-09-09 1987-09-09 Piezoelectric vibrator having adjusting function of oscillated frequency

Country Status (1)

Country Link
JP (1) JPS6468112A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962776A (en) * 1987-03-26 1990-10-16 Regents Of The University Of Minnesota Process for surface and fluid cleaning

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228890A (en) * 1975-08-30 1977-03-04 Citizen Watch Co Ltd Piezoelectric oscillator
JPS5264129A (en) * 1975-11-22 1977-05-27 Shiyashin Kougiyou Kk Method of arranging reinforcement for concrete panel and so on
JPS54157494A (en) * 1978-06-01 1979-12-12 Seikosha Kk Piezooelectric vibrator
JPS553208A (en) * 1978-06-22 1980-01-11 Toshiba Corp Device to obtain plural resonance frequencies
JPS5936018U (en) * 1982-08-27 1984-03-06 日本電気ホームエレクトロニクス株式会社 magnetic head
JPS617711A (en) * 1984-06-22 1986-01-14 Tdk Corp Piezoelectric ceramic resonator and its manufacture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228890A (en) * 1975-08-30 1977-03-04 Citizen Watch Co Ltd Piezoelectric oscillator
JPS5264129A (en) * 1975-11-22 1977-05-27 Shiyashin Kougiyou Kk Method of arranging reinforcement for concrete panel and so on
JPS54157494A (en) * 1978-06-01 1979-12-12 Seikosha Kk Piezooelectric vibrator
JPS553208A (en) * 1978-06-22 1980-01-11 Toshiba Corp Device to obtain plural resonance frequencies
JPS5936018U (en) * 1982-08-27 1984-03-06 日本電気ホームエレクトロニクス株式会社 magnetic head
JPS617711A (en) * 1984-06-22 1986-01-14 Tdk Corp Piezoelectric ceramic resonator and its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962776A (en) * 1987-03-26 1990-10-16 Regents Of The University Of Minnesota Process for surface and fluid cleaning

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