JPS5524670A - Automatic surface tension meter - Google Patents
Automatic surface tension meterInfo
- Publication number
- JPS5524670A JPS5524670A JP9803978A JP9803978A JPS5524670A JP S5524670 A JPS5524670 A JP S5524670A JP 9803978 A JP9803978 A JP 9803978A JP 9803978 A JP9803978 A JP 9803978A JP S5524670 A JPS5524670 A JP S5524670A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- droplets
- time
- circuit
- unit time
- 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
- Measurement Of Unknown Time Intervals (AREA)
Abstract
PURPOSE: To automatically measure the surface tension in a continuous manner through the accurate time measurement by an electronic circuit and with the use of liquid droplet detecting means, while counting the number of the liquid droplets falling within a unit time, by making use of the fact that the falling speed of the liquid droplets is inversely proportional to the surface potential.
CONSTITUTION: A liquid to be metered is continuously reserved in a constant pressure bath 10 by a sampling pump 11 while having its level held at a constant by the action of an over-flow hole 103. The liquid is then allowed to fall from the gap between a valve ball 14 and a guide 104 and from a capillary 152 of a pippet 15 so that its droplets are detected by a sensor 18 which is composed of a projector 181 and a light receiving device 182. The detected signals are converted into a single pulse signal by a waveform shaping circuit 20. A standard time signal generating circuit 23 generates a signal corresponding to the time of 60/n when the unit time is assumed to be 60 seconds. A multiplying circuit 21 multiplies the aforementioned pulse signal by n the times to convert the same into the number of droplets per unit time. In response to time signal from the circuit 23, a gate 22 is opened and closed, and a counter 27 counts the number of the droplets per unit time or 60 seconds so that the content is fed to a display device 24, a recording device 25 and a warning device 26.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9803978A JPS5524670A (en) | 1978-08-10 | 1978-08-10 | Automatic surface tension meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9803978A JPS5524670A (en) | 1978-08-10 | 1978-08-10 | Automatic surface tension meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5524670A true JPS5524670A (en) | 1980-02-21 |
Family
ID=14208926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9803978A Pending JPS5524670A (en) | 1978-08-10 | 1978-08-10 | Automatic surface tension meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5524670A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361032A (en) * | 1979-09-17 | 1982-11-30 | Agfa-Gevaert Aktiengesellschaft | Apparatus for measuring surface tension |
| US5218841A (en) * | 1990-11-05 | 1993-06-15 | The Dow Chemical Company | Apparatus and methods for determining liquid/liquid interfacial tension and dynamic interfacial tension reduction |
| US5559284A (en) * | 1995-04-17 | 1996-09-24 | The United States Of America As Represented By The Secretary Of The Army | Method for determining elongational viscosity and dynamic surface tension in liquid solutions |
| CN110186815A (en) * | 2019-06-27 | 2019-08-30 | 西南石油大学 | The anti-phase transformation gas-liquid interface tension determining apparatus of high temperature and pressure and measuring method |
-
1978
- 1978-08-10 JP JP9803978A patent/JPS5524670A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361032A (en) * | 1979-09-17 | 1982-11-30 | Agfa-Gevaert Aktiengesellschaft | Apparatus for measuring surface tension |
| US5218841A (en) * | 1990-11-05 | 1993-06-15 | The Dow Chemical Company | Apparatus and methods for determining liquid/liquid interfacial tension and dynamic interfacial tension reduction |
| US5559284A (en) * | 1995-04-17 | 1996-09-24 | The United States Of America As Represented By The Secretary Of The Army | Method for determining elongational viscosity and dynamic surface tension in liquid solutions |
| CN110186815A (en) * | 2019-06-27 | 2019-08-30 | 西南石油大学 | The anti-phase transformation gas-liquid interface tension determining apparatus of high temperature and pressure and measuring method |
| CN110186815B (en) * | 2019-06-27 | 2024-02-23 | 西南石油大学 | High-temperature high-pressure phase-change-preventing gas-liquid interfacial tension measuring device and measuring method |
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