US3566164A - System for resiliently supporting an oscillation quartz in a casing - Google Patents

System for resiliently supporting an oscillation quartz in a casing Download PDF

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Publication number
US3566164A
US3566164A US749240*A US3566164DA US3566164A US 3566164 A US3566164 A US 3566164A US 3566164D A US3566164D A US 3566164DA US 3566164 A US3566164 A US 3566164A
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US
United States
Prior art keywords
casing
quartz
oscillator
pin
resilient
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 - Lifetime
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US749240*A
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English (en)
Inventor
Pierre Boillat
Richard Challandes
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Centre Electronique Horloger SA
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Centre Electronique Horloger SA
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Publication date
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/09—Elastic or damping supports
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
    • G04F5/063—Constructional details

Definitions

  • the present invention concerns a resiliently suspended
  • the purpose of the invention is to prevent the limit of elasticity of the suspension from being exceeded.
  • the resonator is characterized in that it comprises at least one shock absorber whichlimits the displacement of the crystal under the influence of shocks, in a zone contained in the zone of elasticity of the suspension of the crystal.
  • the drawing illustrates a known resonator and, by way of examples, two embodiments of the resonator according to the invention.
  • FIG. 1 is a perspective view of a quartz resonator showing the position of the nodal points.
  • FIG. 2 is a diagrammatic view showing the mode of oscillation of the quartz.
  • FIG. 3 is a diagrammatic cross-sectional view showing how a quartz is mounted in a capsule, according to a known device.
  • FIG. 4 is a partial cross-sectional large scale view aiong 4-4 in FIG. 5, of a first embodiment.
  • FIG. 5 is a partial view in elevation with part of the capsule cut away.
  • FIG. 6 is a partial crosssectional large scale view along 6-6 in FIG. 7, of a second embodiment.
  • FIG. 7 is a partial'cross-sectional view along 7-7 in FIG. 6.
  • FIG. I shows a quartz rod 1", having the length L, which is free at both ends. When it oscillates in the fundamental mode and in flexion XY, two nodalpoints P, P are found which are situated a't a distance 0.224 L from the corresponding -ends, these two nodal points being separated by a distance 1-.
  • the rod 1 is mounted in a capsule 2 by means of four springs 3, secured at one end to one of the nodal points of the quartz and at the other end, to a cross piece 4, which is insulated in 5 from the capsule 2.
  • FIGS. 4-and 5 illustrate the suspension of the quartz in one of its nodal axes P-'-P. g
  • the quartz I0 is secured to the capsule 11 by means of two the spring I4 is integral with a flat flange 22, of a generally circular shape, the spring [4 and the flange 22 being situated in the same plane.
  • the resilience of the spring is such that the quartz is enabled to vibrate correctly without this spring introducing losses which would be incompatible with those of the quartz.
  • the suspension members 12 and 13 are each also provided with a protecting member such as spring 16, constituted by an inclined arm 17 the free end of which ends in a circular part 18 partially surrounding the wire 15. This circular part is situated in a plane which is parallel to the flange 22 and to the quartz 10.
  • the flanges 22 of each of the suspension members l2, 13 are respectively welded to a rod 19 made of Kovar, the rod passes through the capsule 11 through a glass ring 20 secured in a fluid-tight manner to the capsule II by means of a sleeve 21.
  • the suspension members l2, 13 being in one piece are everywhere at the same voltage, which suppresses the necessi- 'ty of particular insulation in order to avoid a short circuit.
  • suspension members 12 and 13 arranged on either side of the quartz 10, two other identical members being provided at the other nodal axis.
  • the suspension members 12,13 each comprise a resilient means such as suspension spring 14 the free end of which is welded to one end of a wire 15-, the other end of which is welded to the nodal point of the quartz 10.
  • the other-end of The rigidity of each of the" protecting springs 16 will be greater than the rigidity of the assembly of suspension springs 14.
  • FIGS. 6 and 7 are FIGS; corresponding to FIGS. '4 and 5 and illustrate the suspension of the quartz in one of the nodal axes P-P.
  • the quartz 30 is secured to the capsule 31 by two suspension members 32 and 33 disposed on-either side of the quartz 30, two other identical members being provided at the other nodal axis.
  • Each of these suspension members comprises a suspension element or wire 34 one end of which is wound around a corresponding damping element or wire 35 to which it is welded, one of the ends of this wire being secured to the corresponding nodal point of the quartz 30.
  • the other end of the suspension wire 34 is secured to the inner end of a transverse Kovar rod 36 which is held by a glass ring 37 secured to the capsule 31 by means of a sleeve 38, secured in a fluid-tight manner to the capsule 31.
  • the free end of the wire 35 cooperates with an annular stop 39 and with an axial stop 40 constituted by watch jewels. These stops 39 and 40 are held in spaced relation by means of a washer 41 in a hollow support 42.
  • the wires 35 which are less resilient than the wires 34, have a certain clearance in relation to the stops 39 and 40, which are insulated from the capsule 31.
  • the quartz will be limited in its displacements by the stops coming into contact with the damping wires 35.
  • the capsule 11 or 31 could be replaced by a support.
  • a resonator device comprising a casing, a quartz crystal oscillator, a plurality of resilient members for holding said oscillator for free oscillation in said casing, and a plurality of damping means for limiting the displacement of said oscillator within said casing under the influence of shocks, each resilient member being fixed at one end to a pin located in the wall of said casing, and at the other end to a second pin soldered toa nodal point of said oscillator, each second pin extending from the corresponding nodal point along the corresponding nodal axis; and each of said damping means including a rigid end fixed to said casing and a resilient end surrounding said second pin, the stiffness of said resilient end being greater than the stiffness of each of said resilient members.
  • a resonator device according to claim I wherein four resilient members and four damping means are used.
  • each second pin extending from the corresponding nodal point along the corresponding nodal axis, and each of said damping means comprising an annular stop and an axial stop for each second pin.
  • a resonator device according to claim 3 wherein four resilient members and four damping means are used.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
US749240*A 1967-06-05 1968-05-31 System for resiliently supporting an oscillation quartz in a casing Expired - Lifetime US3566164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH791567A CH493879A (fr) 1967-06-05 1967-06-05 Résonateur à cristal piézoélectrique

Publications (1)

Publication Number Publication Date
US3566164A true US3566164A (en) 1971-02-23

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ID=4332310

Family Applications (1)

Application Number Title Priority Date Filing Date
US749240*A Expired - Lifetime US3566164A (en) 1967-06-05 1968-05-31 System for resiliently supporting an oscillation quartz in a casing

Country Status (9)

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US (1) US3566164A (es)
AT (1) AT276483B (es)
BE (1) BE716078A (es)
CH (3) CH503424A (es)
DE (1) DE1766489B1 (es)
FR (1) FR1567713A (es)
GB (1) GB1233565A (es)
NL (1) NL155144B (es)
SE (1) SE336382B (es)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751692A (en) * 1970-11-23 1973-08-07 Centre Electron Horloger Temperature insensitive piezoelectric resonator mounting
US3754153A (en) * 1971-12-02 1973-08-21 Bulova Watch Co Inc Crystal mounting assembly
US3828210A (en) * 1973-01-22 1974-08-06 Motorola Inc Temperature compensated mounting structure for coupled resonator crystals
US3906249A (en) * 1971-02-26 1975-09-16 Guy Gibert Mounting device for oscillatory crystal which converts torsional vibrations to flexural vibrations
FR2282746A1 (fr) * 1974-08-20 1976-03-19 Suisse Horlogerie Resonateur piezoelectrique
US4992693A (en) * 1988-10-04 1991-02-12 Toko Kabushiki Kaisha Piezo-resonator
US5017823A (en) * 1988-09-19 1991-05-21 Canon Kabushiki Kaisha Vibration wave driven actuator
WO2000008694A1 (en) * 1998-08-03 2000-02-17 Cts Corporation Embedded piezoelectric resonator
US6288478B1 (en) * 1997-05-28 2001-09-11 Murata Manufacturing Co. Ltd. Vibrating gyroscope
USRE42916E1 (en) 1993-04-27 2011-11-15 Watson Industries, Inc. Single bar type vibrating element angular rate sensor system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109687837A (zh) * 2019-01-17 2019-04-26 铜陵日科电子有限责任公司 一种具有耐跌落冲击的谐振器

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352311A (en) * 1941-02-07 1944-06-27 Edison Inc Thomas A Oscillation translating device
US2380592A (en) * 1944-07-08 1945-07-31 Herman L Gordon Piezoelectric crystal holder
US2830203A (en) * 1956-07-19 1958-04-08 Standard Electronics Corp Piezoelectric crystal support
US3004177A (en) * 1961-10-10 sobel etal
US3048815A (en) * 1952-11-05 1962-08-07 Edward G Thurston Low frequency transducer
US3093760A (en) * 1960-06-15 1963-06-11 Bosch Arma Corp Composite piezoelectric element
US3110824A (en) * 1960-10-31 1963-11-12 Eastman Kodak Co Piezoelectric actuating element
US3185868A (en) * 1962-05-28 1965-05-25 Forrest E Coyle Acoustic absorber pad
US3331970A (en) * 1964-09-29 1967-07-18 Honeywell Inc Sonic transducer
US3359435A (en) * 1965-05-04 1967-12-19 James E Webb Holder for crystal resonators
US3423542A (en) * 1965-01-28 1969-01-21 Astatic Corp Tapered fingers for resonant peak damping in piezoelectric transducers
US3423700A (en) * 1963-04-30 1969-01-21 Clevite Corp Piezoelectric resonator
US3477849A (en) * 1964-03-23 1969-11-11 Eastman Kodak Co Multi-color dye developer systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970230C (de) * 1952-09-18 1958-08-28 Siemens Ag Stabfoermiger Schwingquarz hoher Guete und Frequenzkonstanz

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004177A (en) * 1961-10-10 sobel etal
US2352311A (en) * 1941-02-07 1944-06-27 Edison Inc Thomas A Oscillation translating device
US2380592A (en) * 1944-07-08 1945-07-31 Herman L Gordon Piezoelectric crystal holder
US3048815A (en) * 1952-11-05 1962-08-07 Edward G Thurston Low frequency transducer
US2830203A (en) * 1956-07-19 1958-04-08 Standard Electronics Corp Piezoelectric crystal support
US3093760A (en) * 1960-06-15 1963-06-11 Bosch Arma Corp Composite piezoelectric element
US3110824A (en) * 1960-10-31 1963-11-12 Eastman Kodak Co Piezoelectric actuating element
US3185868A (en) * 1962-05-28 1965-05-25 Forrest E Coyle Acoustic absorber pad
US3423700A (en) * 1963-04-30 1969-01-21 Clevite Corp Piezoelectric resonator
US3477849A (en) * 1964-03-23 1969-11-11 Eastman Kodak Co Multi-color dye developer systems
US3331970A (en) * 1964-09-29 1967-07-18 Honeywell Inc Sonic transducer
US3423542A (en) * 1965-01-28 1969-01-21 Astatic Corp Tapered fingers for resonant peak damping in piezoelectric transducers
US3359435A (en) * 1965-05-04 1967-12-19 James E Webb Holder for crystal resonators

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751692A (en) * 1970-11-23 1973-08-07 Centre Electron Horloger Temperature insensitive piezoelectric resonator mounting
US3906249A (en) * 1971-02-26 1975-09-16 Guy Gibert Mounting device for oscillatory crystal which converts torsional vibrations to flexural vibrations
US3754153A (en) * 1971-12-02 1973-08-21 Bulova Watch Co Inc Crystal mounting assembly
US3828210A (en) * 1973-01-22 1974-08-06 Motorola Inc Temperature compensated mounting structure for coupled resonator crystals
FR2282746A1 (fr) * 1974-08-20 1976-03-19 Suisse Horlogerie Resonateur piezoelectrique
US5017823A (en) * 1988-09-19 1991-05-21 Canon Kabushiki Kaisha Vibration wave driven actuator
US4992693A (en) * 1988-10-04 1991-02-12 Toko Kabushiki Kaisha Piezo-resonator
USRE42916E1 (en) 1993-04-27 2011-11-15 Watson Industries, Inc. Single bar type vibrating element angular rate sensor system
US6288478B1 (en) * 1997-05-28 2001-09-11 Murata Manufacturing Co. Ltd. Vibrating gyroscope
US6720714B2 (en) * 1997-05-28 2004-04-13 Murata Manufacturing Co., Ltd. Vibrating gyroscope
WO2000008694A1 (en) * 1998-08-03 2000-02-17 Cts Corporation Embedded piezoelectric resonator
US6093997A (en) * 1998-08-03 2000-07-25 Cts Corporation Embedded piezoelectric resonator

Also Published As

Publication number Publication date
SE336382B (es) 1971-07-05
GB1233565A (es) 1971-05-26
CH791567A4 (es) 1970-03-31
DE1766489B1 (de) 1972-05-04
NL6807887A (es) 1968-12-06
NL155144B (nl) 1977-11-15
CH493879A (fr) 1970-03-31
FR1567713A (es) 1969-04-08
BE716078A (es) 1968-11-04
CH503424A (fr) 1971-02-15
AT276483B (de) 1969-11-25

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