JPS54151021A - Ultrasonic liquid atomizer - Google Patents
Ultrasonic liquid atomizerInfo
- Publication number
- JPS54151021A JPS54151021A JP5970278A JP5970278A JPS54151021A JP S54151021 A JPS54151021 A JP S54151021A JP 5970278 A JP5970278 A JP 5970278A JP 5970278 A JP5970278 A JP 5970278A JP S54151021 A JPS54151021 A JP S54151021A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- driving current
- transistor
- constitution
- oscillation
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
Abstract
PURPOSE: To make the constitution of a liquid load protecting circuit simple and achieve the improvement of reliability by controlling the driving circuit for electrostrictive type ultrasonic wave vibrator according to the change in the driving current owing to the presence or not of liquid load.
CONSTITUTION: When there is no more liquid load, the internal impedance of the electrostrictive type ultrasonic wave vibrator 8 of an oscillation circuit A sharply decreases. This results in an increase in the driving current of the vibrator 8 and an increase in the voltage through the resistance 14 of a protecting circuit part B in proportion to the driving current. When this voltage becomes high than the reference voltage having been set in the emitter and base of a transistor 15, the transistor 15 conducts. Then, a thyristor 20 goes ON to cut off the bias current flowing in a transistor 11, causing the driving current to the vibrator 8 to be set and the oscillation of the vibrator 8 to be stopped by the circuit part B which does not use any float or the like and operates stably. Thus, the occurrence of breakdown, etc, owing to the large oscillation of the vibrator 8 is surely prevented by the simple constitution.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5970278A JPS54151021A (en) | 1978-05-18 | 1978-05-18 | Ultrasonic liquid atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5970278A JPS54151021A (en) | 1978-05-18 | 1978-05-18 | Ultrasonic liquid atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54151021A true JPS54151021A (en) | 1979-11-27 |
Family
ID=13120802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5970278A Pending JPS54151021A (en) | 1978-05-18 | 1978-05-18 | Ultrasonic liquid atomizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54151021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064820A (en) * | 2010-11-03 | 2011-05-18 | 苏州合欣美电子科技有限公司 | Ultrasonic atomization circuit |
| JP2015192985A (en) * | 2014-03-27 | 2015-11-05 | Tdk株式会社 | Ultrasonic vibrator drive circuit |
-
1978
- 1978-05-18 JP JP5970278A patent/JPS54151021A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064820A (en) * | 2010-11-03 | 2011-05-18 | 苏州合欣美电子科技有限公司 | Ultrasonic atomization circuit |
| JP2015192985A (en) * | 2014-03-27 | 2015-11-05 | Tdk株式会社 | Ultrasonic vibrator drive circuit |
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