JPS5512462A - Acoustic liquid level detection - Google Patents
Acoustic liquid level detectionInfo
- Publication number
- JPS5512462A JPS5512462A JP8550378A JP8550378A JPS5512462A JP S5512462 A JPS5512462 A JP S5512462A JP 8550378 A JP8550378 A JP 8550378A JP 8550378 A JP8550378 A JP 8550378A JP S5512462 A JPS5512462 A JP S5512462A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- liquid level
- pulses
- liquid
- level detection
- 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
Links
Abstract
PURPOSE:To highly accurately detect the displacement of a liquid level by using acoustic means. CONSTITUTION:A surface wave transmitting and receiving converter 73 is disposed on the surface of a piezoelectric substrate 71. Thus, if R and F pulses are impressed upon the converter 73 from an electric input and output terminal 72, the surface waves oscillated are reflected on a liquid surface 74 to be detected so that the reflected waves 75 are received by the converter 73. At this time, the pulses of the reflected waves 75 have the delay time which is determined by the distance between the converter 73 and the liquid surface 74 with respect to the transmitting pulses. If this delay time is measured by an electronic circuit, the distance between the converter 73 and the liquid surface 74, i.e., the liquid level can be detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8550378A JPS5512462A (en) | 1978-07-12 | 1978-07-12 | Acoustic liquid level detection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8550378A JPS5512462A (en) | 1978-07-12 | 1978-07-12 | Acoustic liquid level detection |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5512462A true JPS5512462A (en) | 1980-01-29 |
Family
ID=13860727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8550378A Pending JPS5512462A (en) | 1978-07-12 | 1978-07-12 | Acoustic liquid level detection |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5512462A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5788327A (en) * | 1980-11-19 | 1982-06-02 | Besutoooberu Moburii Ltd | Liquid level detector |
JPH01215305A (en) * | 1988-02-22 | 1989-08-29 | Mitsubishi Gas Chem Co Inc | Automatic distillation testing devide for chemical product or the like |
JPH02633U (en) * | 1988-06-15 | 1990-01-05 |
-
1978
- 1978-07-12 JP JP8550378A patent/JPS5512462A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5788327A (en) * | 1980-11-19 | 1982-06-02 | Besutoooberu Moburii Ltd | Liquid level detector |
JPH01215305A (en) * | 1988-02-22 | 1989-08-29 | Mitsubishi Gas Chem Co Inc | Automatic distillation testing devide for chemical product or the like |
JPH02633U (en) * | 1988-06-15 | 1990-01-05 | ||
JPH0429382Y2 (en) * | 1988-06-15 | 1992-07-16 |
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