JPH047846U - - Google Patents
Info
- Publication number
- JPH047846U JPH047846U JP4997890U JP4997890U JPH047846U JP H047846 U JPH047846 U JP H047846U JP 4997890 U JP4997890 U JP 4997890U JP 4997890 U JP4997890 U JP 4997890U JP H047846 U JPH047846 U JP H047846U
- Authority
- JP
- Japan
- Prior art keywords
- tube
- storage means
- bubble generation
- pattern storage
- pattern
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 2
- 230000002123 temporal effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- External Artificial Organs (AREA)
Description
第１図は本考案にかかるローラポンプの概念図
、第２図ａはチユーブ内に小さな気泡が発生した
状態を示す説明図、第２図ｂは小さな気泡を検出
した特性図、第３図ａは負圧により大きな気泡が
発生した状態を示す説明図、第３図ｂは大きな気
泡を検出した特性図、第４図ａはチユーブ内面に
気泡が付着した状態を示す説明図、第４図ｂは気
泡の付着を検出した特性図、第５図は負圧検出を
行うフローチヤート図、第６図は従来のローラポ
ンプを示す平面図、第７図は従来の負圧検出部を
示す一部拡大図、第８図はチユーブに膨出部を設
けて負圧を検出する従来例を示す説明図である。
１……ローラポンプ、４……モータ、７……ロ
ーラ、９……チユーブ、１０……超音波発振子、
１１……超音波受信子、１５……演算比較手段と
してのＣＰＵ、１６……気泡発生パターン記憶手
段としてのＲＯＭ、１７……パターン記憶手段と
してのＲＡＭ、２０……出力手段としての警報ブ
ザー。
Fig. 1 is a conceptual diagram of the roller pump according to the present invention, Fig. 2 a is an explanatory diagram showing a state in which small bubbles are generated in the tube, Fig. 2 b is a characteristic diagram showing the detection of small bubbles, and Fig. 3 a is an explanatory diagram showing a state in which large bubbles are generated due to negative pressure, Fig. 3b is a characteristic diagram in which large bubbles are detected, Fig. 4a is an explanatory diagram showing a state in which bubbles are attached to the inner surface of the tube, and Fig. 4b Fig. 5 is a flowchart for detecting negative pressure, Fig. 6 is a plan view of a conventional roller pump, and Fig. 7 is a part of a conventional negative pressure detection section. The enlarged view, FIG. 8, is an explanatory view showing a conventional example in which a tube is provided with a bulge to detect negative pressure. 1...Roller pump, 4...Motor, 7...Roller, 9...Tube, 10...Ultrasonic oscillator,
11...Ultrasonic receiver, 15...CPU as arithmetic comparison means, 16...ROM as bubble generation pattern storage means, 17...RAM as pattern storage means, 20...Alarm buzzer as output means.
Claims (1)
りチユーブを押圧して同チユーブ内の液体を移送
するローラポンプにおいて、 前記チユーブ内を移送する液体中の気泡を検出
する気泡検出手段と、 前記気泡検出手段の検出信号に基づいた経時的
パターンを記憶するパターン記憶手段と、 前記チユーブ内の負圧を判別するための気泡発
生パターンを予め記憶する気泡発生パターン記憶
手段と、 前記パターン記憶手段の経時的パターンと気泡
発生パターン記憶手段に記憶された気泡発生パタ
ーンとの類似度を比較し演算する演算比較手段と
、 演算した結果、類似度がしきい値以上のとき、
その判別結果を出力する出力手段と を備えたことを特徴とするローラポンプ。[Claims for Utility Model Registration] A roller pump in which a roller is rotated by a motor, and the rotation presses a tube to transfer the liquid in the tube, in which air bubbles are detected in the liquid being transferred in the tube. means; pattern storage means for storing a temporal pattern based on the detection signal of the bubble detection means; bubble generation pattern storage means for storing in advance a bubble generation pattern for determining the negative pressure in the tube; arithmetic comparison means for comparing and calculating the degree of similarity between the temporal pattern of the pattern storage means and the bubble generation pattern stored in the bubble generation pattern storage means;
A roller pump characterized by comprising: an output means for outputting the determination result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4997890U JP2566308Y2 (en) | 1990-05-14 | 1990-05-14 | Negative pressure detector for roller pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4997890U JP2566308Y2 (en) | 1990-05-14 | 1990-05-14 | Negative pressure detector for roller pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH047846U true JPH047846U (en) | 1992-01-24 |
| JP2566308Y2 JP2566308Y2 (en) | 1998-03-25 |
Family
ID=31568130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4997890U Expired - Lifetime JP2566308Y2 (en) | 1990-05-14 | 1990-05-14 | Negative pressure detector for roller pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2566308Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436054A (en) * | 1977-08-24 | 1979-03-16 | Kyushu Sekisui Kogyo | Device for preventing water supply meter from damaging due to freezing on ground |
| JPS5457632U (en) * | 1977-09-30 | 1979-04-20 | ||
| JP2011241730A (en) * | 2010-05-17 | 2011-12-01 | Nidec Servo Corp | Tube pump |
| JP2012002158A (en) * | 2010-06-18 | 2012-01-05 | Nidec Servo Corp | Tube pump |
| JP2017099441A (en) * | 2015-11-30 | 2017-06-08 | 日機装株式会社 | Blood purification equipment |
-
1990
- 1990-05-14 JP JP4997890U patent/JP2566308Y2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436054A (en) * | 1977-08-24 | 1979-03-16 | Kyushu Sekisui Kogyo | Device for preventing water supply meter from damaging due to freezing on ground |
| JPS5457632U (en) * | 1977-09-30 | 1979-04-20 | ||
| JP2011241730A (en) * | 2010-05-17 | 2011-12-01 | Nidec Servo Corp | Tube pump |
| JP2012002158A (en) * | 2010-06-18 | 2012-01-05 | Nidec Servo Corp | Tube pump |
| JP2017099441A (en) * | 2015-11-30 | 2017-06-08 | 日機装株式会社 | Blood purification equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2566308Y2 (en) | 1998-03-25 |