JPS5598314A - Detecting device - Google Patents

Detecting device

Info

Publication number
JPS5598314A
JPS5598314A JP643779A JP643779A JPS5598314A JP S5598314 A JPS5598314 A JP S5598314A JP 643779 A JP643779 A JP 643779A JP 643779 A JP643779 A JP 643779A JP S5598314 A JPS5598314 A JP S5598314A
Authority
JP
Japan
Prior art keywords
vibrating
vibrating member
density
pressure
temperature
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
JP643779A
Other languages
Japanese (ja)
Other versions
JPS60611B2 (en
Inventor
Kinji Harada
Kyoichi Ikeda
Motoyoshi Ando
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP643779A priority Critical patent/JPS60611B2/en
Publication of JPS5598314A publication Critical patent/JPS5598314A/en
Publication of JPS60611B2 publication Critical patent/JPS60611B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measuring Fluid Pressure (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To detect density, pressure, and temperature simultaneously by providing a vibrating member having a vibrating film portion, a driving portion for vibrating the vibrating member in not less than three vibrating modes and an operating portion for obtaining the density, pressure and temperature of a fluid to be measured.
CONSTITUTION: A vibrating member 1 has a thin circulr head portion 13 (vibrating film portion) and a thick circular head portion 14 formed through hole 12 along a center axis. On a bottom of spot facing holes 15, 16 of the vibrating member 1, an exciting and detecting piezoelectric elements are respectively attached. Amplifiers 91W93 have a signal selectivity, so that when the amplifiers 91, 92, 93 respectively constitute the closed circuit, the frequencies of the vibrating member 1 are respectively fi, fj, fk. Accordingly, from a conversion circuit 95W97, signals corresponding to the frequencies fi, fj, fk are outputted. In this case, fi, fj, fk are natural frequencies of the vibrating member or vibrator 1 disposed in the fluid to be measured, so that they are functions of the density, pressure and temperature of the fluid to be measured, and any of the density, pressure and temperature can be obtained, if required, by an operating circuit 98.
COPYRIGHT: (C)1980,JPO&Japio
JP643779A 1979-01-19 1979-01-19 detection device Expired JPS60611B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP643779A JPS60611B2 (en) 1979-01-19 1979-01-19 detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP643779A JPS60611B2 (en) 1979-01-19 1979-01-19 detection device

Publications (2)

Publication Number Publication Date
JPS5598314A true JPS5598314A (en) 1980-07-26
JPS60611B2 JPS60611B2 (en) 1985-01-09

Family

ID=11638367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP643779A Expired JPS60611B2 (en) 1979-01-19 1979-01-19 detection device

Country Status (1)

Country Link
JP (1) JPS60611B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153130A (en) * 1983-02-22 1984-09-01 Yokogawa Hokushin Electric Corp Vibration type transducer
JPS59162442A (en) * 1983-02-22 1984-09-13 ユ−オ−ピ−・インコ−ポレ−テツド Device for determining unknown quantity of gas sample
JPS60105917A (en) * 1983-10-03 1985-06-11 クウオ−ツトロニクス，インコ−ポレイテイツド Resonance conversion system, resonance-force conversion system and method of determining force or other parameter and temperature
WO2017037117A1 (en) * 2015-08-31 2017-03-09 Koninklijke Philips N.V. Electroactive polymer sensors and sensing methods

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153130A (en) * 1983-02-22 1984-09-01 Yokogawa Hokushin Electric Corp Vibration type transducer
JPS59162442A (en) * 1983-02-22 1984-09-13 ユ−オ−ピ−・インコ−ポレ−テツド Device for determining unknown quantity of gas sample
JPH0331207B2 (en) * 1983-02-22 1991-05-02 Yokogawa Electric Corp
JPS60105917A (en) * 1983-10-03 1985-06-11 クウオ−ツトロニクス，インコ−ポレイテイツド Resonance conversion system, resonance-force conversion system and method of determining force or other parameter and temperature
WO2017037117A1 (en) * 2015-08-31 2017-03-09 Koninklijke Philips N.V. Electroactive polymer sensors and sensing methods
CN107923811A (en) * 2015-08-31 2018-04-17 皇家飞利浦有限公司 Electroactive polymer sensor and method for sensing
US10905334B2 (en) 2015-08-31 2021-02-02 Koninklijke Philips N.V. Electroactive polymer sensors and sensing methods

Also Published As

Publication number Publication date
JPS60611B2 (en) 1985-01-09

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