JPS5583818A - Level detector - Google Patents
Level detectorInfo
- Publication number
- JPS5583818A JPS5583818A JP15976278A JP15976278A JPS5583818A JP S5583818 A JPS5583818 A JP S5583818A JP 15976278 A JP15976278 A JP 15976278A JP 15976278 A JP15976278 A JP 15976278A JP S5583818 A JPS5583818 A JP S5583818A
- Authority
- JP
- Japan
- Prior art keywords
- detected object
- piezo
- electric element
- level
- output voltage
- 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
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE: To make level detection passible with a simple constitution by vibrating a piezo-electric element in parallel with the level change direction of a detected object approximately and constituting a level detector so that the level detection signal voltage may be changed by the level of the detected object.
CONSTITUTION: Piezo-electric element 5 is constituted by providing electrode 2 and split electrodes 3 and 4 on one face and the other face of piezo-electric porcelain plate 1, and AC voltage Ein to vibrate piezo-electric element 5 is applied across terminals P1 and P2, and level detection signal voltage Eout is taken out across terminals P3 and P4. When much detected object 8 exists and piezo-electric element 5 is buried in detected object 8, vibration is suppressed, and output voltage Eout is small. Otherwise, when little detected object 8 exists and piezo-electric element 5 is outside detected object 8, suppression of vibration is released, and output voltage Eout becomes large. Consequently, the level of the detected object can be detected with a simple constitution by detecting this output voltage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15976278A JPS581371B2 (en) | 1978-12-20 | 1978-12-20 | level detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15976278A JPS581371B2 (en) | 1978-12-20 | 1978-12-20 | level detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5583818A true JPS5583818A (en) | 1980-06-24 |
JPS581371B2 JPS581371B2 (en) | 1983-01-11 |
Family
ID=15700703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15976278A Expired JPS581371B2 (en) | 1978-12-20 | 1978-12-20 | level detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS581371B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919816A (en) * | 1982-07-27 | 1984-02-01 | Chiyoda Seisakusho:Kk | Level gauge |
US4565942A (en) * | 1983-07-01 | 1986-01-21 | Murata Manufacturing Co., Ltd. | Energy trapped piezoelectric resonator liquid sensor |
JP2006194854A (en) * | 2004-04-19 | 2006-07-27 | Seiko Epson Corp | Liquid detection device and liquid container including the device |
KR101038777B1 (en) | 2009-12-11 | 2011-06-03 | (주)블렛스인더스트리 | Receiving and distributing electricity equippment for saving power |
-
1978
- 1978-12-20 JP JP15976278A patent/JPS581371B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919816A (en) * | 1982-07-27 | 1984-02-01 | Chiyoda Seisakusho:Kk | Level gauge |
US4565942A (en) * | 1983-07-01 | 1986-01-21 | Murata Manufacturing Co., Ltd. | Energy trapped piezoelectric resonator liquid sensor |
JP2006194854A (en) * | 2004-04-19 | 2006-07-27 | Seiko Epson Corp | Liquid detection device and liquid container including the device |
KR101038777B1 (en) | 2009-12-11 | 2011-06-03 | (주)블렛스인더스트리 | Receiving and distributing electricity equippment for saving power |
Also Published As
Publication number | Publication date |
---|---|
JPS581371B2 (en) | 1983-01-11 |
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