JPH0477855B2 - - Google Patents
Info
- Publication number
- JPH0477855B2 JPH0477855B2 JP59081134A JP8113484A JPH0477855B2 JP H0477855 B2 JPH0477855 B2 JP H0477855B2 JP 59081134 A JP59081134 A JP 59081134A JP 8113484 A JP8113484 A JP 8113484A JP H0477855 B2 JPH0477855 B2 JP H0477855B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- time
- pulse
- clock
- 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
- 238000001514 detection method Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000000630 rising effect Effects 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 230000003111 delayed effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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 |
|---|---|---|---|
| JP59081134A JPS60225027A (ja) | 1984-04-24 | 1984-04-24 | 超音波の伝播時間測定装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59081134A JPS60225027A (ja) | 1984-04-24 | 1984-04-24 | 超音波の伝播時間測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60225027A JPS60225027A (ja) | 1985-11-09 |
| JPH0477855B2 true JPH0477855B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-12-09 |
Family
ID=13737927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59081134A Granted JPS60225027A (ja) | 1984-04-24 | 1984-04-24 | 超音波の伝播時間測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60225027A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4689904B2 (ja) * | 2001-08-28 | 2011-06-01 | 関西ガスメータ株式会社 | 超音波流速測定方法 |
-
1984
- 1984-04-24 JP JP59081134A patent/JPS60225027A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60225027A (ja) | 1985-11-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |