JPS51138363A - Band-pass filter using a piezoelectric tunig furk - Google Patents

Band-pass filter using a piezoelectric tunig furk

Info

Publication number
JPS51138363A
JPS51138363A JP6332075A JP6332075A JPS51138363A JP S51138363 A JPS51138363 A JP S51138363A JP 6332075 A JP6332075 A JP 6332075A JP 6332075 A JP6332075 A JP 6332075A JP S51138363 A JPS51138363 A JP S51138363A
Authority
JP
Japan
Prior art keywords
band
pass filter
piezoelectric
furk
tunig
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.)
Granted
Application number
JP6332075A
Other languages
Japanese (ja)
Other versions
JPS5715493B2 (en
Inventor
Takeshi Nakamura
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.)
NOTO DENSHI KOGYO KK
NOTO DENSHI KOUGIYOU KK
Original Assignee
NOTO DENSHI KOGYO KK
NOTO DENSHI KOUGIYOU KK
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 NOTO DENSHI KOGYO KK, NOTO DENSHI KOUGIYOU KK filed Critical NOTO DENSHI KOGYO KK
Priority to JP6332075A priority Critical patent/JPS51138363A/en
Publication of JPS51138363A publication Critical patent/JPS51138363A/en
Publication of JPS5715493B2 publication Critical patent/JPS5715493B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1208—Frequency selective two-port networks using amplifiers with feedback comprising an electromechanical resonator

Landscapes

  • Electronic Switches (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:A broad band-pass filter with no ripples in the band wherein input signals are applied to two piezoelectric tuning forks having dirrerent resonance frequencies and the phase difference in the outputs therefrom are detected in a phase detector circuit to thereby put the input signals to ON and OFF.
JP6332075A 1975-05-26 1975-05-26 Band-pass filter using a piezoelectric tunig furk Granted JPS51138363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6332075A JPS51138363A (en) 1975-05-26 1975-05-26 Band-pass filter using a piezoelectric tunig furk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6332075A JPS51138363A (en) 1975-05-26 1975-05-26 Band-pass filter using a piezoelectric tunig furk

Publications (2)

Publication Number Publication Date
JPS51138363A true JPS51138363A (en) 1976-11-29
JPS5715493B2 JPS5715493B2 (en) 1982-03-31

Family

ID=13225846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6332075A Granted JPS51138363A (en) 1975-05-26 1975-05-26 Band-pass filter using a piezoelectric tunig furk

Country Status (1)

Country Link
JP (1) JPS51138363A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2433367A (en) * 2005-12-03 2007-06-20 Peter John Jones Filter using tuning fork crystals
WO2013041828A1 (en) 2011-09-22 2013-03-28 Xtra-Sense Limited Filter circuit with neutralised stray capacitance of a piezo - crystal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2433367A (en) * 2005-12-03 2007-06-20 Peter John Jones Filter using tuning fork crystals
GB2433367B (en) * 2005-12-03 2010-11-10 Peter John Jones Filter using tuning fork crystals
WO2013041828A1 (en) 2011-09-22 2013-03-28 Xtra-Sense Limited Filter circuit with neutralised stray capacitance of a piezo - crystal

Also Published As

Publication number Publication date
JPS5715493B2 (en) 1982-03-31

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