JPS5512455A - Ultrasonic level meter - Google Patents
Ultrasonic level meterInfo
- Publication number
- JPS5512455A JPS5512455A JP8538778A JP8538778A JPS5512455A JP S5512455 A JPS5512455 A JP S5512455A JP 8538778 A JP8538778 A JP 8538778A JP 8538778 A JP8538778 A JP 8538778A JP S5512455 A JPS5512455 A JP S5512455A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- received
- hopper
- level meter
- output
- 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 Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE:To stabilize the indication of an ultrasonic level meter by using the simulated received pulses corresponding to the waves reflected from the most distant point of a measuring span. CONSTITUTION:The ultrasonic pulses from an intermittent oscillator 3 are fed from a transmitting and receiving device 5 to the inside of a hopper 6, and the reflected waves from the content of the hopper 6 are received so that the level of the content is indicated in accordance with the time difference. At this time, there is provided a circuit 17 for generating simulated received pulses which have the time difference corresponding to the reflected waves at the most distant point of the measuring span, i.e., when the hopper is under its substantially vacant condition. These pulse output and the output of the AND circuit, i.e., the received signals are fed to an OFF circuit 18 so that the logic signals become the reset input of an FF 12. As a result, in case no received signal can be obtained at the output of an AND circuit 11, the FF 12 is reset so that the deflection of the level meter 16 can be stabilized without any indication of the abnormal value of an integrating circuit 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8538778A JPS5512455A (en) | 1978-07-13 | 1978-07-13 | Ultrasonic level meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8538778A JPS5512455A (en) | 1978-07-13 | 1978-07-13 | Ultrasonic level meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5512455A true JPS5512455A (en) | 1980-01-29 |
Family
ID=13857326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8538778A Pending JPS5512455A (en) | 1978-07-13 | 1978-07-13 | Ultrasonic level meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5512455A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5718745A (en) * | 1980-07-08 | 1982-01-30 | Sumitomo Rubber Ind Ltd | Method for preventing blooming of rubber |
US4741449A (en) * | 1980-04-15 | 1988-05-03 | Parteurosa S.A. | Container shaped structural element and structure obtained from a plurality of components from such containers |
-
1978
- 1978-07-13 JP JP8538778A patent/JPS5512455A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4741449A (en) * | 1980-04-15 | 1988-05-03 | Parteurosa S.A. | Container shaped structural element and structure obtained from a plurality of components from such containers |
JPS5718745A (en) * | 1980-07-08 | 1982-01-30 | Sumitomo Rubber Ind Ltd | Method for preventing blooming of rubber |
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