JPS5542463A - Inflected metal vibrator - Google Patents

Inflected metal vibrator

Info

Publication number
JPS5542463A
JPS5542463A JP11617578A JP11617578A JPS5542463A JP S5542463 A JPS5542463 A JP S5542463A JP 11617578 A JP11617578 A JP 11617578A JP 11617578 A JP11617578 A JP 11617578A JP S5542463 A JPS5542463 A JP S5542463A
Authority
JP
Japan
Prior art keywords
temperature
primary
vibrator
young
modulus
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.)
Pending
Application number
JP11617578A
Other languages
Japanese (ja)
Inventor
Hirofumi Kawashima
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments 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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP11617578A priority Critical patent/JPS5542463A/en
Publication of JPS5542463A publication Critical patent/JPS5542463A/en
Pending 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 elements; 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

PURPOSE:To obtain excellent frequency-temperature characteristics by reducing extremely the absolute value of the sum of the primary temperature coefficient of the Young's modulus of a metal vibrator and its primary linear expansion coefficient. CONSTITUTION:Metal tuning fork 1 with piezoelectric thin film 2 formed on its surface is supported at its base part by lead wires 3 and 4 as electrode terminals. Denoting the primary temperature coefficient of the Young's modulus of a material for vibrator 1 by E1 and its primary linear expansion coefficient by X1, a frequency variation rate is unrelated with a temperature with E1+X1=0, namely, when E1 and X1 are opposite in sign and equal in absolute value. By selecting the adequate composition of the material, X1 can be fixed between 4.9X10<-6> and 8.1X10<-6>/ deg.C and E1 between -10.1X10<-6> and -2.9X10<-6>/ deg.C and consequently ¦E1+X1¦ can be made less than ZX10<-6>. As a result, frequency variation ratio DELTAf/f is expressed by (I) [wherein t represents the temperature] and excellent frequency- temperature characteristics can be obtained.
JP11617578A 1978-09-20 1978-09-20 Inflected metal vibrator Pending JPS5542463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11617578A JPS5542463A (en) 1978-09-20 1978-09-20 Inflected metal vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11617578A JPS5542463A (en) 1978-09-20 1978-09-20 Inflected metal vibrator

Publications (1)

Publication Number Publication Date
JPS5542463A true JPS5542463A (en) 1980-03-25

Family

ID=14680642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11617578A Pending JPS5542463A (en) 1978-09-20 1978-09-20 Inflected metal vibrator

Country Status (1)

Country Link
JP (1) JPS5542463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5744020A (en) * 1995-11-01 1998-04-28 Douryokuro Kakunenryo Kaihatsu Jigyoudan Process for treatment of radioactive waste

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5744020A (en) * 1995-11-01 1998-04-28 Douryokuro Kakunenryo Kaihatsu Jigyoudan Process for treatment of radioactive waste

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