JPS604820A - Small sized vibration type level detector - Google Patents

Small sized vibration type level detector

Info

Publication number
JPS604820A
JPS604820A JP11307083A JP11307083A JPS604820A JP S604820 A JPS604820 A JP S604820A JP 11307083 A JP11307083 A JP 11307083A JP 11307083 A JP11307083 A JP 11307083A JP S604820 A JPS604820 A JP S604820A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
diaphragm
level detector
vibro
inspected
piezo
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
JP11307083A
Inventor
Hiroshi Kawakatsu
Original Assignee
Nouken Kogyo 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

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm by measurement of physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm by measurement of physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electric or acoustic waves applied directly to the liquid or fluent solid material

Abstract

PURPOSE:To obtain a small level detector excellent in the stability by having a diaphragm vibrating in resonance with a piezo-electric element provided on the back thereof to detect changes in the vibration amplitude due to a powder, particulate, liquid or the like contacting the surface of the diaphragm through a vibro-voltage conversion element. CONSTITUTION:A level detector is made up of a diaphragm 1, a vibrating piezo- electric element 3, a vibro-voltage conversion element 3', a weight 4 and electrodes 5a-5c all arranged on a circular frame 2. The surface of the diaphragm 1 is mounted facing the inside of a container 6 and an object 7 to be inspected such as a powder, particulate and liquid is fed to the container 6. An AC voltage is applied to the piezo-electric element 3 through the electrode 5b to vibrate in resonance the diaphragm 1 and changes in the vibration amplitude generated upon the contact of the object 7 being inspected with the diaphragm 1 are converted into an electrical signal through the electrodes 5a and 5c and the vibro- voltage conversion element 3' to detect level changes of the object 7 being inspected. Thus, a small level detector is obtained with an excellent stability.
JP11307083A 1983-06-23 1983-06-23 Small sized vibration type level detector Pending JPS604820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11307083A JPS604820A (en) 1983-06-23 1983-06-23 Small sized vibration type level detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11307083A JPS604820A (en) 1983-06-23 1983-06-23 Small sized vibration type level detector

Publications (1)

Publication Number Publication Date
JPS604820A true true JPS604820A (en) 1985-01-11

Family

ID=14602729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11307083A Pending JPS604820A (en) 1983-06-23 1983-06-23 Small sized vibration type level detector

Country Status (1)

Country Link
JP (1) JPS604820A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203059A (en) * 1986-03-01 1987-09-07 Shizuoka Seiki Co Ltd Grain state detector of recirculation type grain dryer and grain state judge device utilizing said detector
US5035140A (en) * 1988-11-03 1991-07-30 The Boeing Company Self cleaning liquid level detector
EP0599233A1 (en) * 1992-11-26 1994-06-01 Konica Corporation Powder fluidity detecting apparatus
US5761955A (en) * 1993-12-27 1998-06-09 Simmonds Precision Products, Inc. Removable ultrasonic transducer with integral electrical disconnect
US6729184B2 (en) 2000-07-28 2004-05-04 Seiko Epson Corporation Detector of liquid consumption condition
US6745626B2 (en) 1999-05-20 2004-06-08 Seiko Epson Corporation Liquid detecting piezoelectric device, liquid container and mounting module member
US6793305B2 (en) 2000-05-18 2004-09-21 Seiko Epson Corporation Method and apparatus for detecting consumption of ink
WO2008053003A1 (en) * 2006-10-31 2008-05-08 Arcelik Anonim Sirketi Detergent dispenser with agitator current determining fill level

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203059A (en) * 1986-03-01 1987-09-07 Shizuoka Seiki Co Ltd Grain state detector of recirculation type grain dryer and grain state judge device utilizing said detector
US5035140A (en) * 1988-11-03 1991-07-30 The Boeing Company Self cleaning liquid level detector
EP0599233A1 (en) * 1992-11-26 1994-06-01 Konica Corporation Powder fluidity detecting apparatus
US5438393A (en) * 1992-11-26 1995-08-01 Konica Corporation Powder fluidity detecting apparatus which includes a piezoelectric element
US5761955A (en) * 1993-12-27 1998-06-09 Simmonds Precision Products, Inc. Removable ultrasonic transducer with integral electrical disconnect
US6745626B2 (en) 1999-05-20 2004-06-08 Seiko Epson Corporation Liquid detecting piezoelectric device, liquid container and mounting module member
US7383727B2 (en) * 1999-05-20 2008-06-10 Seiko Epson Corporation Liquid cotainer having a liquid consumption detecting device therein
US7267000B1 (en) * 1999-05-20 2007-09-11 Seiko Epson Corporation Liquid consumption status detecting method, liquid container, and ink cartridge
US6799820B1 (en) 1999-05-20 2004-10-05 Seiko Epson Corporation Liquid container having a liquid detecting device
US7434462B2 (en) * 1999-05-20 2008-10-14 Seiko Epson Corporation Liquid consumption status detecting method, liquid container, and ink cartridge
US6793305B2 (en) 2000-05-18 2004-09-21 Seiko Epson Corporation Method and apparatus for detecting consumption of ink
US6729184B2 (en) 2000-07-28 2004-05-04 Seiko Epson Corporation Detector of liquid consumption condition
WO2008053003A1 (en) * 2006-10-31 2008-05-08 Arcelik Anonim Sirketi Detergent dispenser with agitator current determining fill level

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