JPH0310087U - - Google Patents
Info
- Publication number
- JPH0310087U JPH0310087U JP7058289U JP7058289U JPH0310087U JP H0310087 U JPH0310087 U JP H0310087U JP 7058289 U JP7058289 U JP 7058289U JP 7058289 U JP7058289 U JP 7058289U JP H0310087 U JPH0310087 U JP H0310087U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric pump
- pump
- drive current
- detected current
- sucks
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
Landscapes
- Reciprocating Pumps (AREA)
Description
図面は本考案装置の一実施例の構成を示す説明
図である。 １……圧電ポンプ、２……駆動電流検出回路、
３……信号回路。
図である。 １……圧電ポンプ、２……駆動電流検出回路、
３……信号回路。
Claims (1)
- 流体の吸込み、吐出を行う圧電ポンプ１におい
て、この圧電ポンプ１の駆動電流Ｉを検出する駆
動電流検出回路２と、その検出電流Ｉを入力して
検出電流値が所定値以上に変化したとき、警報・
ポンプ停止等を行う信号回路３とよりなる圧電ポ
ンプの負荷変動検出装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7058289U JPH0310087U (ja) | 1989-06-16 | 1989-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7058289U JPH0310087U (ja) | 1989-06-16 | 1989-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0310087U true JPH0310087U (ja) | 1991-01-30 |
Family
ID=31606854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7058289U Pending JPH0310087U (ja) | 1989-06-16 | 1989-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310087U (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008173420A (ja) * | 2007-01-19 | 2008-07-31 | Norihiro Shiraishi | 飲酒時における避酒意思等表示用具 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58215996A (ja) * | 1982-06-08 | 1983-12-15 | Nippon Denso Co Ltd | 過給機付エンジンの冷却用モ−タの駆動回路 |
-
1989
- 1989-06-16 JP JP7058289U patent/JPH0310087U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58215996A (ja) * | 1982-06-08 | 1983-12-15 | Nippon Denso Co Ltd | 過給機付エンジンの冷却用モ−タの駆動回路 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008173420A (ja) * | 2007-01-19 | 2008-07-31 | Norihiro Shiraishi | 飲酒時における避酒意思等表示用具 |