JPS54109867A - Powder and granule level detector - Google Patents
Powder and granule level detectorInfo
- Publication number
- JPS54109867A JPS54109867A JP1650578A JP1650578A JPS54109867A JP S54109867 A JPS54109867 A JP S54109867A JP 1650578 A JP1650578 A JP 1650578A JP 1650578 A JP1650578 A JP 1650578A JP S54109867 A JPS54109867 A JP S54109867A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- conductors
- granules
- levels
- granule
- 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
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE: To prevent deposition of powder and granules on electrode bodies and accurately perform detection of powder and granule levels by forcefully exciting the electrode bodies forming a level detecting element.
CONSTITUTION: The electrostatic capacity between plate form conductors 1a, 1b changes according to the levels of powder and granules when their dielectric constants are constant. This change causes the output frequency of an oscillator 2 to change and the output voltage corresponding to the input frequency of a frequency voltage converter 3 decreases as the level of the powder and granules lowers and the capacity between the conductors 1a, 1b decreases, whereby the levels of the powder and granule are detected. In this case, magnetostrictive vibrating elements 4a, 4b are driven to forcefully vibrate the conductors 1a, 1b by turning ON a changeover switch 6, whereby deposition of the powder on the conductors is prevented, the powder bridging between the conductors 1a, 1b eliminated and the level detection of the powder and granules made sure.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1650578A JPS54109867A (en) | 1978-02-17 | 1978-02-17 | Powder and granule level detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1650578A JPS54109867A (en) | 1978-02-17 | 1978-02-17 | Powder and granule level detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54109867A true JPS54109867A (en) | 1979-08-28 |
Family
ID=11918125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1650578A Pending JPS54109867A (en) | 1978-02-17 | 1978-02-17 | Powder and granule level detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54109867A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132022A (en) * | 1981-02-09 | 1982-08-16 | Fujitsu Ltd | Detector for amount of powder |
| US4603581A (en) * | 1984-02-14 | 1986-08-05 | Nippon Soken, Inc. | Sensing apparatus |
-
1978
- 1978-02-17 JP JP1650578A patent/JPS54109867A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132022A (en) * | 1981-02-09 | 1982-08-16 | Fujitsu Ltd | Detector for amount of powder |
| US4603581A (en) * | 1984-02-14 | 1986-08-05 | Nippon Soken, Inc. | Sensing apparatus |
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