JPS5837570U - flow meter flow direction detector - Google Patents
flow meter flow direction detectorInfo
- Publication number
- JPS5837570U JPS5837570U JP13266181U JP13266181U JPS5837570U JP S5837570 U JPS5837570 U JP S5837570U JP 13266181 U JP13266181 U JP 13266181U JP 13266181 U JP13266181 U JP 13266181U JP S5837570 U JPS5837570 U JP S5837570U
- Authority
- JP
- Japan
- Prior art keywords
- flow direction
- flow
- direction detector
- signal
- flowmeter
- 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
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Measuring Volume Flow (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は超音波流量計における流体管と送受波器との関
係を示す図、第2図は流量と検出流れ方向の関係を示す
タイムチャート、第3図はヒステリシスをもたせた流れ
方向検出器の入出力特性図、第4図は従来技術の欠点を
説明するための流れ方向の変化を示す図、第5図はこの
考案による流れ方向検出器の一例を示すブロック図、第
6図はその他の例を示すブロック図、第7図はこの考案
の一部変形を示す図である。
11:流量信号入力端子、12:2値信号変換器、13
:シフトレジスタ、14:クロック入力端子、15:多
数決論理回蕗、17:ラッチ回路、18:出力端子、2
1ニアツブダウンカウンタ。Figure 1 is a diagram showing the relationship between the fluid pipe and transducer in an ultrasonic flowmeter, Figure 2 is a time chart showing the relationship between flow rate and detected flow direction, and Figure 3 is a flow direction detector with hysteresis. Fig. 4 is a diagram showing changes in flow direction to explain the drawbacks of the conventional technology, Fig. 5 is a block diagram showing an example of the flow direction detector according to this invention, and Fig. 6 is a diagram showing other flow direction detectors. FIG. 7 is a block diagram showing an example of the invention, and FIG. 7 is a diagram showing a partial modification of this invention. 11: Flow rate signal input terminal, 12: Binary signal converter, 13
: Shift register, 14: Clock input terminal, 15: Majority logic circuit, 17: Latch circuit, 18: Output terminal, 2
1 near down counter.
Claims (1)
さい流量信号を発生する流量計において、前記流量信号
より前記被測定流体の瞬時的な流れ方向に応じて2値の
何れかをとる2値信号を発生する手段と、その2値信号
が周期的に順次取込まれて成る期間内における前記2嶺
の一方の数と他方の数との大小に応じた流れ方向信号を
出力する手段とを具備する流量計の流れ方向検出器。In a flowmeter that generates a flow rate signal that is larger or smaller than a reference value depending on the flow direction of the fluid to be measured, the flow rate signal has a binary value that takes one of two values depending on the instantaneous flow direction of the fluid to be measured. means for generating a signal; and means for outputting a flow direction signal according to the magnitude of one number and the other number of the two ridges within a period in which the binary signals are periodically and sequentially captured. Flowmeter flow direction detector equipped with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13266181U JPS5837570U (en) | 1981-09-07 | 1981-09-07 | flow meter flow direction detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13266181U JPS5837570U (en) | 1981-09-07 | 1981-09-07 | flow meter flow direction detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5837570U true JPS5837570U (en) | 1983-03-11 |
Family
ID=29926184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13266181U Pending JPS5837570U (en) | 1981-09-07 | 1981-09-07 | flow meter flow direction detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5837570U (en) |
-
1981
- 1981-09-07 JP JP13266181U patent/JPS5837570U/en active Pending
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