GB804694A - Improvements in or relating to electromechanical oscillators - Google Patents

Improvements in or relating to electromechanical oscillators

Info

Publication number
GB804694A
GB804694A GB2830255A GB2830255A GB804694A GB 804694 A GB804694 A GB 804694A GB 2830255 A GB2830255 A GB 2830255A GB 2830255 A GB2830255 A GB 2830255A GB 804694 A GB804694 A GB 804694A
Authority
GB
United Kingdom
Prior art keywords
fork
relating
tuning
coil
electromechanical oscillators
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
GB2830255A
Inventor
Kenneth Arthur Robinson
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.)
Lancashire Dynamo Electronic Products Ltd
Original Assignee
Lancashire Dynamo Electronic Products 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 Lancashire Dynamo Electronic Products Ltd filed Critical Lancashire Dynamo Electronic Products Ltd
Priority to GB2830255A priority Critical patent/GB804694A/en
Publication of GB804694A publication Critical patent/GB804694A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

804,694. Reciprocating electric motors. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS, Ltd. Jan. 4, 1957 [Oct. 4, 1955], No. 28302/55. Class 35. A tuning-fork for generating current of fixed frequency is maintained in vibration by a coil 2 fed from an amplifier 3 controlled by capacityinduced voltage from plates 4 facing the prongs of the tuning fork, thus avoiding coupling between the driving coil and the pick-off of the fork.
GB2830255A 1955-10-04 1955-10-04 Improvements in or relating to electromechanical oscillators Expired GB804694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2830255A GB804694A (en) 1955-10-04 1955-10-04 Improvements in or relating to electromechanical oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2830255A GB804694A (en) 1955-10-04 1955-10-04 Improvements in or relating to electromechanical oscillators

Publications (1)

Publication Number Publication Date
GB804694A true GB804694A (en) 1958-11-19

Family

ID=10273485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2830255A Expired GB804694A (en) 1955-10-04 1955-10-04 Improvements in or relating to electromechanical oscillators

Country Status (1)

Country Link
GB (1) GB804694A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532408A (en) * 1968-05-20 1970-10-06 Bulova Watch Co Inc Resonant torsional oscillators
US4763967A (en) * 1986-11-18 1988-08-16 General Scanning, Inc. Tunable resonant device
US4816920A (en) * 1986-11-18 1989-03-28 General Scanning, Inc. Planar surface scanning system
US4874215A (en) * 1987-04-23 1989-10-17 General Scanning, Inc. Tunable resonant mechanical system
US4959568A (en) * 1986-08-05 1990-09-25 General Scanning, Inc. Dynamically tunable resonant device with electric control

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532408A (en) * 1968-05-20 1970-10-06 Bulova Watch Co Inc Resonant torsional oscillators
US4959568A (en) * 1986-08-05 1990-09-25 General Scanning, Inc. Dynamically tunable resonant device with electric control
US4763967A (en) * 1986-11-18 1988-08-16 General Scanning, Inc. Tunable resonant device
US4816920A (en) * 1986-11-18 1989-03-28 General Scanning, Inc. Planar surface scanning system
US4874215A (en) * 1987-04-23 1989-10-17 General Scanning, Inc. Tunable resonant mechanical system

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