JPS5612513A - Film oscillation sensor - Google Patents

Film oscillation sensor

Info

Publication number
JPS5612513A
JPS5612513A JP8854779A JP8854779A JPS5612513A JP S5612513 A JPS5612513 A JP S5612513A JP 8854779 A JP8854779 A JP 8854779A JP 8854779 A JP8854779 A JP 8854779A JP S5612513 A JPS5612513 A JP S5612513A
Authority
JP
Japan
Prior art keywords
polymer piezoelectric
piezoelectric film
freely
case
heavy weight
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
JP8854779A
Other languages
Japanese (ja)
Other versions
JPS6228843B2 (en
Inventor
Yasuro Obata
Naohiro Murayama
Teruo Fujii
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.)
ASUKA DENSHI KK
ASUKA DENSHI YUUGEN
Kureha Corp
Original Assignee
ASUKA DENSHI KK
ASUKA DENSHI YUUGEN
Kureha Corp
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 ASUKA DENSHI KK, ASUKA DENSHI YUUGEN, Kureha Corp filed Critical ASUKA DENSHI KK
Priority to JP8854779A priority Critical patent/JPS5612513A/en
Priority to GB8021502A priority patent/GB2055018B/en
Priority to US06/165,802 priority patent/US4368525A/en
Priority to DE19803025894 priority patent/DE3025894A1/en
Priority to FR8015352A priority patent/FR2461270A1/en
Priority to CA000355868A priority patent/CA1171953A/en
Publication of JPS5612513A publication Critical patent/JPS5612513A/en
Publication of JPS6228843B2 publication Critical patent/JPS6228843B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To improve sensitivity by fixing a heavy weight at a free oscillation section of polymer piezoelectric film.
CONSTITUTION: Both ends 5, 5' of polymer piezoelectric film 1, of which both sides are adhered by thin film electrodes 2, 2', are fixed with the side wall section 4 of base body 3, while a heavy weight 6 is fixed to the central part of the upper thin film electrode 2. Thereby from the low Young's modulus and primitivity of the polymer piezoelectric film and from the high mechanical-electrical coupling constant, the extremely good sensitivity is obtained, while the spring strength can freely be changed by changing the tention thereof, and in addition to the change of the mass of the heavy weight 6, also the change of the tention of polymer piezoelectric film 1 can freely change the natural oscillation frequency of the spring. If required, a case 9 is prepared and by solely changing a gap to the case 9 as well as the size of the air holes to be prepared on the case 9 and the like, a damping ratio can freely be changed.
COPYRIGHT: (C)1981,JPO&Japio
JP8854779A 1979-07-11 1979-07-11 Film oscillation sensor Granted JPS5612513A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP8854779A JPS5612513A (en) 1979-07-11 1979-07-11 Film oscillation sensor
GB8021502A GB2055018B (en) 1979-07-11 1980-07-01 Vibration detector
US06/165,802 US4368525A (en) 1979-07-11 1980-07-03 Vibration detector
DE19803025894 DE3025894A1 (en) 1979-07-11 1980-07-09 VIBRATION DETECTOR
FR8015352A FR2461270A1 (en) 1979-07-11 1980-07-10 VIBRATION DETECTOR
CA000355868A CA1171953A (en) 1979-07-11 1980-07-10 Seismic vibration detector using piezoelectric polymeric substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8854779A JPS5612513A (en) 1979-07-11 1979-07-11 Film oscillation sensor

Publications (2)

Publication Number Publication Date
JPS5612513A true JPS5612513A (en) 1981-02-06
JPS6228843B2 JPS6228843B2 (en) 1987-06-23

Family

ID=13945872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8854779A Granted JPS5612513A (en) 1979-07-11 1979-07-11 Film oscillation sensor

Country Status (1)

Country Link
JP (1) JPS5612513A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06139472A (en) * 1992-10-27 1994-05-20 Satoru Ota Earthquake announcing device before large shake comes
WO2011083239A1 (en) * 2010-01-08 2011-07-14 Commissariat à l'énergie atomique et aux énergies alternatives Sound wave detection device and sound wave source location system
DE10354281B4 (en) * 2003-11-20 2012-10-25 Marco Systemanalyse Und Entwicklung Gmbh sensor
JP2014032162A (en) * 2012-08-06 2014-02-20 Shinshu Univ Sensor using polymer gel
CN105247335A (en) * 2012-09-24 2016-01-13 积水化学工业株式会社 Leakage detector, leakage detection method, and pipe network monitoring apparatus
JP2020020597A (en) * 2018-07-30 2020-02-06 株式会社バルカー Vibration sensor
US11793083B2 (en) 2017-07-07 2023-10-17 Daikin Industries, Ltd. Vibration sensor and piezoelectric element

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522533U (en) * 1991-09-05 1993-03-23 日立化成ポリマー株式会社 Rubber adhesive tape
JP5810059B2 (en) * 2012-09-24 2015-11-11 積水化学工業株式会社 Piezoelectric vibration sensor and water leakage detection method
JP5873453B2 (en) * 2012-09-24 2016-03-01 積水化学工業株式会社 Leak detector
JP6235362B2 (en) * 2014-02-12 2017-11-22 積水化学工業株式会社 Piezoelectric vibration sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52140374U (en) * 1976-04-19 1977-10-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52140374U (en) * 1976-04-19 1977-10-24

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06139472A (en) * 1992-10-27 1994-05-20 Satoru Ota Earthquake announcing device before large shake comes
DE10354281B4 (en) * 2003-11-20 2012-10-25 Marco Systemanalyse Und Entwicklung Gmbh sensor
WO2011083239A1 (en) * 2010-01-08 2011-07-14 Commissariat à l'énergie atomique et aux énergies alternatives Sound wave detection device and sound wave source location system
FR2955226A1 (en) * 2010-01-08 2011-07-15 Commissariat Energie Atomique ACOUSTIC WAVE DETECTION DEVICE AND SYSTEM FOR LOCATING ACOUSTIC WAVE SOURCE
JP2014032162A (en) * 2012-08-06 2014-02-20 Shinshu Univ Sensor using polymer gel
CN105247335A (en) * 2012-09-24 2016-01-13 积水化学工业株式会社 Leakage detector, leakage detection method, and pipe network monitoring apparatus
US11793083B2 (en) 2017-07-07 2023-10-17 Daikin Industries, Ltd. Vibration sensor and piezoelectric element
JP2020020597A (en) * 2018-07-30 2020-02-06 株式会社バルカー Vibration sensor

Also Published As

Publication number Publication date
JPS6228843B2 (en) 1987-06-23

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