JPH0193379U - - Google Patents
Info
- Publication number
- JPH0193379U JPH0193379U JP18981687U JP18981687U JPH0193379U JP H0193379 U JPH0193379 U JP H0193379U JP 18981687 U JP18981687 U JP 18981687U JP 18981687 U JP18981687 U JP 18981687U JP H0193379 U JPH0193379 U JP H0193379U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- inputs
- piezoelectric vibrator
- effective value
- 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
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Description
第１図は本考案ポンプの一実施例の構成を示す
ブロツク図、第２図は本考案ポンプの吸入レベル
に対する吐出量の関係を示した図である。
１……圧電振動子ポンプ、２……圧電振動子、
３……振動センサ、４……実効値演算回路、５…
…ＰＩＤ回路、６……設定回路、７……制御電圧
発生回路、８……交流化回路、１７……可撓性絶
縁材。
FIG. 1 is a block diagram showing the construction of an embodiment of the pump of the present invention, and FIG. 2 is a diagram showing the relationship between the suction level and the discharge amount of the pump of the present invention. 1...Piezoelectric vibrator pump, 2...Piezoelectric vibrator,
3... Vibration sensor, 4... Effective value calculation circuit, 5...
... PID circuit, 6 ... Setting circuit, 7 ... Control voltage generation circuit, 8 ... AC converting circuit, 17 ... Flexible insulating material.
Claims (1)
振動センサと、この振動センサの出力を入力し交
流信号の実効値を演算する実効値演算回路と、こ
の実効値演算回路の出力を入力して振動量信号を
演算処理して振動状態信号を出力するＰＩＤ回路
と、このＰＩＤ回路の出力と設定回路の出力を入
力し制御電圧を出力する制御電圧発生回路と、こ
の制御電圧発生回路の出力を交流に変換し上記圧
電振動子に交流電圧を供給する交流化回路とより
なる定吐出量ポンプ。 A vibration sensor installed in parallel on the surface of the piezoelectric vibrator of the piezoelectric vibrator pump, an effective value calculation circuit that inputs the output of this vibration sensor and calculates the effective value of the AC signal, and inputs the output of this effective value calculation circuit. a PID circuit that arithmetic processes a vibration amount signal and outputs a vibration state signal, a control voltage generation circuit that inputs the output of this PID circuit and the output of the setting circuit and outputs a control voltage, and the output of this control voltage generation circuit. A constant discharge pump consisting of an AC conversion circuit that converts AC voltage into AC voltage and supplies AC voltage to the piezoelectric vibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18981687U JPH0193379U (en) | 1987-12-14 | 1987-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18981687U JPH0193379U (en) | 1987-12-14 | 1987-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0193379U true JPH0193379U (en) | 1989-06-20 |
Family
ID=31480827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18981687U Pending JPH0193379U (en) | 1987-12-14 | 1987-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0193379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005080793A1 (en) * | 2004-02-23 | 2005-09-01 | Nec Corporation | Piezoelectric pump driving circuit, and cooling system using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141639A (en) * | 1979-04-20 | 1980-11-05 | Nissan Motor Co Ltd | Vibration sensor |
| JPS61160588A (en) * | 1985-01-07 | 1986-07-21 | Matsushita Electric Ind Co Ltd | Refueling device |
-
1987
- 1987-12-14 JP JP18981687U patent/JPH0193379U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141639A (en) * | 1979-04-20 | 1980-11-05 | Nissan Motor Co Ltd | Vibration sensor |
| JPS61160588A (en) * | 1985-01-07 | 1986-07-21 | Matsushita Electric Ind Co Ltd | Refueling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005080793A1 (en) * | 2004-02-23 | 2005-09-01 | Nec Corporation | Piezoelectric pump driving circuit, and cooling system using the same |
| US7564164B2 (en) | 2004-02-23 | 2009-07-21 | Nec Corporation | Drive circuit for piezoelectric pump and cooling system that uses this drive circuit |
| CN102230457A (en) * | 2004-02-23 | 2011-11-02 | 日本电气株式会社 | Drive circuit for piezoelectric pump and cooling system that uses this drive circuit |
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