JPH0339248B2 - - Google Patents
Info
- Publication number
- JPH0339248B2 JPH0339248B2 JP57150477A JP15047782A JPH0339248B2 JP H0339248 B2 JPH0339248 B2 JP H0339248B2 JP 57150477 A JP57150477 A JP 57150477A JP 15047782 A JP15047782 A JP 15047782A JP H0339248 B2 JPH0339248 B2 JP H0339248B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- oscillation
- operating point
- frequency divider
- division ratio
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57150477A JPS5946512A (ja) | 1982-08-30 | 1982-08-30 | 超音波流量計 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57150477A JPS5946512A (ja) | 1982-08-30 | 1982-08-30 | 超音波流量計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5946512A JPS5946512A (ja) | 1984-03-15 |
JPH0339248B2 true JPH0339248B2 (cs) | 1991-06-13 |
Family
ID=15497744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57150477A Granted JPS5946512A (ja) | 1982-08-30 | 1982-08-30 | 超音波流量計 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5946512A (cs) |
-
1982
- 1982-08-30 JP JP57150477A patent/JPS5946512A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5946512A (ja) | 1984-03-15 |
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