GB630394A - Improvements in piezoelectric crystal apparatus - Google Patents

Improvements in piezoelectric crystal apparatus

Info

Publication number
GB630394A
GB630394A GB20992/47A GB2099247A GB630394A GB 630394 A GB630394 A GB 630394A GB 20992/47 A GB20992/47 A GB 20992/47A GB 2099247 A GB2099247 A GB 2099247A GB 630394 A GB630394 A GB 630394A
Authority
GB
United Kingdom
Prior art keywords
nickel
sufficient
platinum
electrode
solution
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
GB20992/47A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB630394A publication Critical patent/GB630394A/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
    • H03H9/09—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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

630,394. Electrodeposition. WESTERN ELECTRIC CO., Inc. Aug. 1, 1947, No. 20992. Convention date, March 28, 1944. Drawings to Specification. [Class 41] [Also in Group XL (c)] A piezo-electric crystal having an electrode of nickel, platinum, silver, chromium, aluminium or gold (the latter possibly being mixed with platinum, rhodium, palladium or other noble metal) applied by deposition or spraying has a further layer of nickel electroplated on to the electrode to adjust the resonant frequency of the crystal (see Group XL). The solution for nickel plating may consist of a bath including nickel sulphate with sufficient nickel chloride present to ensure good anode corrosion, sufficient boric acid to buff the cathode film and prevent it becoming alkaline, and sufficient nickel hydroxide to ensure high cathode efficiency. The solution may be treated with charcoal to remove impurities.
GB20992/47A 1944-03-28 1947-08-01 Improvements in piezoelectric crystal apparatus Expired GB630394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US528388A US2392429A (en) 1944-03-28 1944-03-28 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
GB630394A true GB630394A (en) 1949-10-12

Family

ID=24105487

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20992/47A Expired GB630394A (en) 1944-03-28 1947-08-01 Improvements in piezoelectric crystal apparatus

Country Status (5)

Country Link
US (1) US2392429A (en)
CH (1) CH269634A (en)
FR (1) FR950530A (en)
GB (1) GB630394A (en)
NL (2) NL133060B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132816A (en) * 1982-12-23 1984-07-11 Kung Chao Tung Quartz oscillators

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE462051A (en) * 1944-11-21
BE476120A (en) * 1945-01-23
US2447160A (en) * 1945-10-22 1948-08-17 Philips Lab Inc Piezoelectric apparatus
US2482661A (en) * 1946-08-15 1949-09-20 Rca Corp Crystal mounting
US2508232A (en) * 1947-02-13 1950-05-16 Reeves Hoffman Corp Holder for piezoelectric oscillators
US2484428A (en) * 1947-07-15 1949-10-11 Melvin L Smith Piezoelectric crystal mounting
US2481806A (en) * 1947-08-07 1949-09-13 John M Wolfskill Piezoelectric crystal holder
US2635199A (en) * 1948-01-08 1953-04-14 John M Wolfskill Piezoelectric crystal apparatus
US2656473A (en) * 1950-05-24 1953-10-20 Bell Telephone Labor Inc Crystal unit for use at high temperatures
US2824980A (en) * 1952-03-14 1958-02-25 Erie Resistor Corp Piezoelectric transducers
US2765765A (en) * 1952-09-03 1956-10-09 Robert R Bigler Apparatus for the manufacture of piezoelectric crystals
US2850651A (en) * 1954-03-02 1958-09-02 P R Hoffman Company Piezoelectric crystal support
US2894317A (en) * 1954-06-07 1959-07-14 Spence T Marks Method for constructing a barium titanate blast velocity gauge
US2824981A (en) * 1954-11-03 1958-02-25 Walter J Warden Piezoelectric crystal holder
US2824219A (en) * 1954-11-08 1958-02-18 Midland Mfg Co Inc Piezoelectric crystal assembly
US2852416A (en) * 1955-06-03 1958-09-16 Itt Method and apparatus for manufacturing travelling wave electron discharge devices
US2856549A (en) * 1955-06-06 1958-10-14 Int Standard Electric Corp Method of mounting piezo-electric crystals
US2972068A (en) * 1956-07-06 1961-02-14 Automation Instr Inc Uni-directional ultrasonic transducer
US3054004A (en) * 1957-06-24 1962-09-11 Vitro Corp Of America Piezoelectric crystal holder
GB848028A (en) * 1957-12-24 1960-09-14 Marconi Wireless Telegraph Co Improvements in or relating to piezo-electric crystal units
US2965773A (en) * 1957-12-31 1960-12-20 Hill Electronic Engineering An Crystal mounting structure with damping means
US3069572A (en) * 1958-12-02 1962-12-18 James Knights Company Piezoelectric device
DE1158127B (en) * 1959-02-26 1963-11-28 Kristallverarbeitung Neckarbis Base plate with power supply for a vacuum-tight quartz vessel
US3162780A (en) * 1961-04-10 1964-12-22 Philips Corp Piezo-electrical quartz crystal in evacuated glass housings
US3232787A (en) * 1961-05-08 1966-02-01 Donald C Bennett Bistable magnetic film and method for making same
US3333122A (en) * 1964-01-09 1967-07-25 Motorola Inc Electrical device
US3317761A (en) * 1964-05-12 1967-05-02 Bell Telephone Labor Inc Resonant and antiresonant vibratory members attached to a crystal
US3340410A (en) * 1964-08-05 1967-09-05 Wave Lock Inc Piezoelectric crystal assembly
US3617331A (en) * 1964-08-25 1971-11-02 Optical Coating Laboratory Inc Method for manufacture of rotatable variable filter
US3676741A (en) * 1970-12-09 1972-07-11 Bell Telephone Labor Inc Semiconductor target structure for image converting device comprising an array of silver contacts having discontinuous nodular structure
US4284663A (en) * 1976-05-10 1981-08-18 Bell Telephone Laboratories, Incorporated Fabrication of optical waveguides by indiffusion of metals
US4060888A (en) * 1976-06-29 1977-12-06 Tyco Filters Division, Inc. Method of improving ohmic contact through high-resistance oxide film
DE8120939U1 (en) * 1981-07-16 1981-11-26 SIEMENS AG AAAAA, 1000 Berlin und 8000 München HOLDING AND CONNECTING DEVICE FOR A DISC-SHAPED PIEZOELECTRIC RESONATOR
US5283496A (en) * 1988-07-20 1994-02-01 Asahi Dempa Co., Ltd. Thickness shear crystal resonator and manufacturing method therefor
CN103368458B (en) * 2012-11-30 2016-01-20 北京纳米能源与系统研究所 Impulse generator and generating set
US9941641B1 (en) * 2017-06-01 2018-04-10 Amphenol East Asia Electronic Technology (Shen Zhen) Co., Ltd. Male connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132816A (en) * 1982-12-23 1984-07-11 Kung Chao Tung Quartz oscillators

Also Published As

Publication number Publication date
CH269634A (en) 1950-07-15
US2392429A (en) 1946-01-08
NL133060B (en)
NL72090C (en)
FR950530A (en) 1949-09-29

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