GB566515A - Improvements in piezo-electric oscillators - Google Patents

Improvements in piezo-electric oscillators

Info

Publication number
GB566515A
GB566515A GB755543A GB755543A GB566515A GB 566515 A GB566515 A GB 566515A GB 755543 A GB755543 A GB 755543A GB 755543 A GB755543 A GB 755543A GB 566515 A GB566515 A GB 566515A
Authority
GB
United Kingdom
Prior art keywords
inductance
crystal
piezo
oscillator
electric
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
GB755543A
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.)
ALBERT JESSE BIGGS
General Electric Co PLC
Original Assignee
ALBERT JESSE BIGGS
General Electric Co PLC
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 ALBERT JESSE BIGGS, General Electric Co PLC filed Critical ALBERT JESSE BIGGS
Priority to GB755543A priority Critical patent/GB566515A/en
Publication of GB566515A publication Critical patent/GB566515A/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
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

566,515. Valve generators. GENERAL ELECTRIC CO., Ltd., and BIGGS, A. J. May 12, 1943, No. 7555. [Class 40 (v)] In a piezo-electric oscillator, the crystal is shunted by an inductance (other than one necessary for the circuit to generate oscillations) to increase the effective impedance across the crystal terminals at the anti-resonant frequency Wo of the oscillator. This inductance is so chosen that where Zx is the impedance of C1 (the capacity of the driving arrangements), R and L (the losses and inductance of the added inductance) and C2 (the shunt capacity in the equivalent circuit of the crystal) in parallel. The driving arrangements are designed to avoid the generation of oscillation at the frequency defined by Land (C1+C2).
GB755543A 1943-05-12 1943-05-12 Improvements in piezo-electric oscillators Expired GB566515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB755543A GB566515A (en) 1943-05-12 1943-05-12 Improvements in piezo-electric oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB755543A GB566515A (en) 1943-05-12 1943-05-12 Improvements in piezo-electric oscillators

Publications (1)

Publication Number Publication Date
GB566515A true GB566515A (en) 1945-01-02

Family

ID=9835371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB755543A Expired GB566515A (en) 1943-05-12 1943-05-12 Improvements in piezo-electric oscillators

Country Status (1)

Country Link
GB (1) GB566515A (en)

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