NL7808859A - Electromagnetic tuning fork filter with electromechanical converter - has ends of terminal wires loosely coiled to form spring loaded section around terminals - Google Patents

Electromagnetic tuning fork filter with electromechanical converter - has ends of terminal wires loosely coiled to form spring loaded section around terminals

Info

Publication number
NL7808859A
NL7808859A NL7808859A NL7808859A NL7808859A NL 7808859 A NL7808859 A NL 7808859A NL 7808859 A NL7808859 A NL 7808859A NL 7808859 A NL7808859 A NL 7808859A NL 7808859 A NL7808859 A NL 7808859A
Authority
NL
Netherlands
Prior art keywords
tuning fork
terminal
spring loaded
section around
terminal wires
Prior art date
Application number
NL7808859A
Other languages
Dutch (nl)
Other versions
NL177873C (en
NL177873B (en
Original Assignee
Matsushita Electric Ind 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
Priority claimed from JP1973085107U external-priority patent/JPS578248Y2/ja
Priority claimed from JP1973119990U external-priority patent/JPS5714411Y2/ja
Priority claimed from NL7409796.A external-priority patent/NL158666B/en
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to NLAANVRAGE7808859,A priority Critical patent/NL177873C/en
Publication of NL7808859A publication Critical patent/NL7808859A/en
Publication of NL177873B publication Critical patent/NL177873B/en
Application granted granted Critical
Publication of NL177873C publication Critical patent/NL177873C/en

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
    • H03H9/46—Filters
    • H03H9/48—Coupling means therefor
    • H03H9/50—Mechanical coupling means
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/48—Coupling means therefor

Landscapes

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

Abstract

The electro-magnetic tuning fork filter, consists of a base element, a set of elongated mechanically resonating tuning fork elements. The end sections of the tuning fork elements are connected to each other and to the base element. There are electro-mechanical converters attached to the surface of the tuning fork. A set of output terminals are attached to the base element with discrete terminal wires between the terminals andelectro-magnetic converters. The end of one of the connecting wires (9, 10) near a terminal (7) is wound around the end of the terminal. Part of the wire is loosely wound around the terminal to produce a spring loading and the remaining section of the wound wire is rigidly attached to the terminal.
NLAANVRAGE7808859,A 1973-07-20 1978-08-28 ELECTROMECHANICAL TONGUE FILTER. NL177873C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7808859,A NL177873C (en) 1973-07-20 1978-08-28 ELECTROMECHANICAL TONGUE FILTER.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1973085107U JPS578248Y2 (en) 1973-07-20 1973-07-20
JP1973119990U JPS5714411Y2 (en) 1973-10-15 1973-10-15
NL7409796.A NL158666B (en) 1973-07-20 1974-07-19 ELECTROMECHANICAL TONGUE FILTER.
NLAANVRAGE7808859,A NL177873C (en) 1973-07-20 1978-08-28 ELECTROMECHANICAL TONGUE FILTER.

Publications (3)

Publication Number Publication Date
NL7808859A true NL7808859A (en) 1978-12-29
NL177873B NL177873B (en) 1985-07-01
NL177873C NL177873C (en) 1985-12-02

Family

ID=27304766

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7808859,A NL177873C (en) 1973-07-20 1978-08-28 ELECTROMECHANICAL TONGUE FILTER.

Country Status (1)

Country Link
NL (1) NL177873C (en)

Also Published As

Publication number Publication date
NL177873C (en) 1985-12-02
NL177873B (en) 1985-07-01

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Legal Events

Date Code Title Description
V4 Lapsed because of reaching the maximum lifetime of a patent