JPS55138607A - Weir height detection of raised weir made of flexible film - Google Patents
Weir height detection of raised weir made of flexible filmInfo
- Publication number
- JPS55138607A JPS55138607A JP4756979A JP4756979A JPS55138607A JP S55138607 A JPS55138607 A JP S55138607A JP 4756979 A JP4756979 A JP 4756979A JP 4756979 A JP4756979 A JP 4756979A JP S55138607 A JPS55138607 A JP S55138607A
- Authority
- JP
- Japan
- Prior art keywords
- weir
- height
- transmitting
- distance
- detected
- 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
- Barrages (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
PURPOSE: To facilitate detection of overflow amount and control, by providing an ultrasonic wave transmitter/receiver in the weir bottom, and measuring the distance up to the top of weir film circumference by rotating at every specified angle with a motor to facilitate detection of weir height.
CONSTITUTION: A transmitting/receiving part 16 of an ultrasonic wave transmitter/ receiver is provided in a recess 11 in the weir bottom, and is rotated by a motor not illustrated in the drawing to transmit and receive ultrasonic waves to measure the distance l1, l2... etc. from the transmitting/receiving part 16 to the top of the weir film circumference. From these distance and the angles of elevation θ1, θ2... etc. formed by the foundation surface in the transmitting and receiving direction, the weir heights H1, H2... etc. of each point on the weir film circumference from the foundation surface are determined. By repeating this opration over the entire circumference, the largest height from the foundation surface is found, and the weir height is detected. Thus, since the weir height can be detected easily, the overflow amount may be detected, and its control becomes easy.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4756979A JPS55138607A (en) | 1979-04-17 | 1979-04-17 | Weir height detection of raised weir made of flexible film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4756979A JPS55138607A (en) | 1979-04-17 | 1979-04-17 | Weir height detection of raised weir made of flexible film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55138607A true JPS55138607A (en) | 1980-10-29 |
JPS5757643B2 JPS5757643B2 (en) | 1982-12-06 |
Family
ID=12778856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4756979A Granted JPS55138607A (en) | 1979-04-17 | 1979-04-17 | Weir height detection of raised weir made of flexible film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138607A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60186727U (en) * | 1984-05-18 | 1985-12-11 | 三菱電機株式会社 | Erroneous signal output prevention device when power is turned on |
-
1979
- 1979-04-17 JP JP4756979A patent/JPS55138607A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5757643B2 (en) | 1982-12-06 |
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