GB1105114A - Electromechanical resonators and electric circuit devices utilizing the same - Google Patents

Electromechanical resonators and electric circuit devices utilizing the same

Info

Publication number
GB1105114A
GB1105114A GB1576665A GB1576665A GB1105114A GB 1105114 A GB1105114 A GB 1105114A GB 1576665 A GB1576665 A GB 1576665A GB 1576665 A GB1576665 A GB 1576665A GB 1105114 A GB1105114 A GB 1105114A
Authority
GB
United Kingdom
Prior art keywords
terminals
resonator
elements
same
april
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.)
Expired
Application number
GB1576665A
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.)
Kokusai Electric Corp
Original Assignee
Kokusai Electric Corp
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 Kokusai Electric Corp filed Critical Kokusai Electric Corp
Publication of GB1105114A publication Critical patent/GB1105114A/en
Expired 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
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/323—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator having more than two terminals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1,105,114. Piezoelectric elements. KOKUSAI DENKI KASHUSHIKI KAISHA. 13 April, 1965 [13 April, 1964; 24 Aug., 1964; Dec. 28, 1964], No. 15766/65. Heading H1E. [Also in Division H3] The resonant frequency of a composite electromechanical resonator is controlled by means of an impedance element not forming part of either the input or the output circuit. The resonator consists of a metallic member in the form of a tuning fork or a lamina 2 having either two or three separate electroded piezoelectric elements attached to one or both faces. The metallic member forms a common electrode. In one embodiment, input and output terminals 3, 4, Fig. 1a, are connected across two of the elements and the electrode 5 of the third element is connected to earth through a variable impedance, e.g. a capacitor (not shown), which enables the resonant frequency to be varied. In another embodiment, the resonator is used in a two-terminal arrangement, the terminals 3, 4a being connected across one of the elements and the variable impedance across terminals 5, 4a. The resonators may be used to replace the usual tuned circuits in a ratio frequency discriminator.
GB1576665A 1964-04-13 1965-04-13 Electromechanical resonators and electric circuit devices utilizing the same Expired GB1105114A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2055764 1964-04-13
JP4777264 1964-08-24
JP7346164 1964-12-28

Publications (1)

Publication Number Publication Date
GB1105114A true GB1105114A (en) 1968-03-06

Family

ID=27283095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1576665A Expired GB1105114A (en) 1964-04-13 1965-04-13 Electromechanical resonators and electric circuit devices utilizing the same

Country Status (1)

Country Link
GB (1) GB1105114A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440654A1 (en) * 1978-10-30 1980-05-30 Rca Corp PRECISE AUTOMATIC TUNING CIRCUIT
FR2451131A1 (en) * 1979-03-08 1980-10-03 Comp Generale Electricite LOW FREQUENCY RESONANT COMPOSITE PIEZOELECTRIC DEVICE
GB2149570A (en) * 1981-07-24 1985-06-12 Litton Systems Inc Piezoelectric transducer
WO1987003390A1 (en) * 1985-11-26 1987-06-04 General Electric Company Active datum for coordinate reference in a numerically controlled machine tool
EP0706835A1 (en) * 1994-10-10 1996-04-17 Endress + Hauser GmbH + Co. Method of operating an ultrasonic piezoelectric transducer and circuit arrangement for performing the method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440654A1 (en) * 1978-10-30 1980-05-30 Rca Corp PRECISE AUTOMATIC TUNING CIRCUIT
FR2451131A1 (en) * 1979-03-08 1980-10-03 Comp Generale Electricite LOW FREQUENCY RESONANT COMPOSITE PIEZOELECTRIC DEVICE
EP0016976A1 (en) * 1979-03-08 1980-10-15 COMPAGNIE GENERALE D'ELECTRICITE Société anonyme dite: Composite piezoelectric device resonating at a low frequency
GB2149570A (en) * 1981-07-24 1985-06-12 Litton Systems Inc Piezoelectric transducer
WO1987003390A1 (en) * 1985-11-26 1987-06-04 General Electric Company Active datum for coordinate reference in a numerically controlled machine tool
EP0706835A1 (en) * 1994-10-10 1996-04-17 Endress + Hauser GmbH + Co. Method of operating an ultrasonic piezoelectric transducer and circuit arrangement for performing the method
US5757104A (en) * 1994-10-10 1998-05-26 Endress + Hauser Gmbh + Co. Method of operating an ultransonic piezoelectric transducer and circuit arrangement for performing the method

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