JPS57171818A - Adjusting method for frequency of piezoelectric tuning fork - Google Patents

Adjusting method for frequency of piezoelectric tuning fork

Info

Publication number
JPS57171818A
JPS57171818A JP5749881A JP5749881A JPS57171818A JP S57171818 A JPS57171818 A JP S57171818A JP 5749881 A JP5749881 A JP 5749881A JP 5749881 A JP5749881 A JP 5749881A JP S57171818 A JPS57171818 A JP S57171818A
Authority
JP
Japan
Prior art keywords
tuning fork
frequency
leg parts
oscillator
base
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
JP5749881A
Other languages
Japanese (ja)
Inventor
Koji Nishiyama
Takeshi Nakamura
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP5749881A priority Critical patent/JPS57171818A/en
Publication of JPS57171818A publication Critical patent/JPS57171818A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/013—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for obtaining desired frequency or temperature coefficient

Abstract

PURPOSE:To achieve trimming without losing the left-right balance of a tuning fork and decreasing a Q factor, by adjusting the frequency by forming a groove in the center of a tuning fork oscillator base in its width direction a the root part of oscillator leg parts. CONSTITUTION:A piezoelectric film 5 is formed over the external surfaces of the oscillation leg parts 2 and 3 of a tuning fork oscillator 1, and the external entire surface of a base part 4 succeeding to the leg parts 2 and 3. At the root part of the leg parts 2 and 3, a V-shaped groove 12 is formed from the center position of the oscillator base in its direction of its width W toward the tuning fork oscillator base 4. For the formation of the groove 12, for example, extremely thin foil 13 is used. Thus, the frequency is lowered. In the figure, 6' is an electrode.
JP5749881A 1981-04-15 1981-04-15 Adjusting method for frequency of piezoelectric tuning fork Pending JPS57171818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5749881A JPS57171818A (en) 1981-04-15 1981-04-15 Adjusting method for frequency of piezoelectric tuning fork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5749881A JPS57171818A (en) 1981-04-15 1981-04-15 Adjusting method for frequency of piezoelectric tuning fork

Publications (1)

Publication Number Publication Date
JPS57171818A true JPS57171818A (en) 1982-10-22

Family

ID=13057387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5749881A Pending JPS57171818A (en) 1981-04-15 1981-04-15 Adjusting method for frequency of piezoelectric tuning fork

Country Status (1)

Country Link
JP (1) JPS57171818A (en)

Similar Documents

Publication Publication Date Title
JPS5343491A (en) Crystal vibrator
JPS56737A (en) Tuning fork type crystal oscillator
US3760482A (en) Method of adjusting frequency of tuning fork type vibrator
JPS5291669A (en) Piezoelectric vibrator
JPS57171818A (en) Adjusting method for frequency of piezoelectric tuning fork
JPS5352088A (en) Tuning fork type crystal resonator
JPS5518190A (en) Frequency adjustment method for high-coupled piezoelectric oscillator
JPS57199314A (en) Tuning fork type quartz oscillator
JPS57199310A (en) Coupling tuning fork type quartz oscillator
JPS54131850A (en) Crystal oscillator for watch
JPS5768924A (en) Coupling turning fork quartz oscillator
JPS5647200A (en) Adjusting method for resonance frequency of piezoelectric vibrator
JPS5332690A (en) Tuning fork type piezoelectric vibrator
JPS57171820A (en) Piezoelectric tuning fork
JPS57199309A (en) Piezoelectric oscillator unit
JPS56123120A (en) Coupled tuning fork type quartz oscillator
JPS5537086A (en) Tuning fork type crystal oscillator
JPS57171817A (en) Adjusting method for frequency of piezoelectric tuning fork
JPS5357788A (en) Electrode structure of tuning fork type crystal
JPS5291672A (en) Longer side piezoelectric vibrator
JPS5499588A (en) Frequency adjustment method for tuning fork type crystal oscillator
JPS55147818A (en) Frequency and temperature characteristic adjusting method of crystal oscillator
WO1979001101A1 (en) Quartz crystal resonator
JPS56110291A (en) Semiconductor laser element and manufacture thereof
JPS5432363A (en) Crystal oscillation type wristwatch