GB534767A - Improvements in or relating to piezo electric crystal mountings - Google Patents

Improvements in or relating to piezo electric crystal mountings

Info

Publication number
GB534767A
GB534767A GB31012/39A GB3101239A GB534767A GB 534767 A GB534767 A GB 534767A GB 31012/39 A GB31012/39 A GB 31012/39A GB 3101239 A GB3101239 A GB 3101239A GB 534767 A GB534767 A GB 534767A
Authority
GB
United Kingdom
Prior art keywords
crystal
electrode
plates
electric crystal
piezo
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
GB31012/39A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB534767A publication Critical patent/GB534767A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03H9/0504—Holders; Supports for bulk acoustic wave devices
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making

Abstract

534,767. Piezo-electric crystal mountings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 28, 1939, No. 31012. Convention date, Nov. 28, 1938. [Class 40 (v)] A mount for a piezo-electric crystal C includes two electrode plates P formed at the corners with risers R1 - R1 which are adapted to clamp the crystal near the edges. The centres of plates P are formed with raised electrode parts E, the distances of which from the crystal faces can be varied by varying the clamping force, the plates P being sufficiently flexible, Fig. 4 shows a crystal assembly mounted in a plug type holder of the kind described in Specification 459,645. The clamping force is provided by resilient arms A1, A2 and may be varied by means of a screw S. In a modification, Fig. 3 (not shown), the electrode E is formed by a central metallic insert in an insulating clamping plate, thus reducing inter-electrode capacity at high frequencies.
GB31012/39A 1938-11-28 1939-11-28 Improvements in or relating to piezo electric crystal mountings Expired GB534767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US242805A US2229172A (en) 1938-11-28 1938-11-28 Method of and apparatus for mounting piezoelectric crystals

Publications (1)

Publication Number Publication Date
GB534767A true GB534767A (en) 1941-03-17

Family

ID=22916251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31012/39A Expired GB534767A (en) 1938-11-28 1939-11-28 Improvements in or relating to piezo electric crystal mountings

Country Status (2)

Country Link
US (1) US2229172A (en)
GB (1) GB534767A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420864A (en) * 1943-04-17 1947-05-20 Chilowsky Constantin Piezoelectric plastic material and method of making same
US2427825A (en) * 1943-11-06 1947-09-23 Rca Corp Art of mounting piezoelectric crystals
US2434265A (en) * 1945-07-18 1948-01-13 Motorola Inc Holder for piezoelectric crystal units
US2482661A (en) * 1946-08-15 1949-09-20 Rca Corp Crystal mounting
US2464046A (en) * 1947-10-18 1949-03-08 Walter E Kuenstler Crystal holder
US2829284A (en) * 1953-11-04 1958-04-01 Eduard A Gerber Stable piezoelectric crystals
US2806966A (en) * 1953-11-17 1957-09-17 Motorola Inc Crystal assembly and process
US5747857A (en) * 1991-03-13 1998-05-05 Matsushita Electric Industrial Co., Ltd. Electronic components having high-frequency elements and methods of manufacture therefor
JPH06291587A (en) * 1992-07-08 1994-10-18 Matsushita Electric Ind Co Ltd Piezoelectric vibrator

Also Published As

Publication number Publication date
US2229172A (en) 1941-01-21

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