JPS6447932A - Viscosity measuring apparatus - Google Patents
Viscosity measuring apparatusInfo
- Publication number
- JPS6447932A JPS6447932A JP20574787A JP20574787A JPS6447932A JP S6447932 A JPS6447932 A JP S6447932A JP 20574787 A JP20574787 A JP 20574787A JP 20574787 A JP20574787 A JP 20574787A JP S6447932 A JPS6447932 A JP S6447932A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- resonator
- viscosity
- oscillation frequency
- contact
- 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
Abstract
PURPOSE:To enable measurement of viscosity of a small amount of a liquid sample, by placing a sample liquid into a cell to measure an oscillation frequency of a crystal resonator in contact therewith. CONSTITUTION:A crystal resonator 1 is a device utilizing piezoelectric effect and is connected to an oscillation circuit 4 through a cell 2 to cause a mechanical vibration. Though very small, the vibration causes a shearing stress between the surface of a liquid and the resonator 1 in contact with the liquid and the force thereof balances a force with the vibration of the resonator 1 as elastic body. Hence, a difference between an oscillation frequency when a liquid does not exist and that when the liquid gets in contact with the resonator is in a logarithmic relationship with viscosity. Thus, the viscosity of a sample liquid can be measured from a calibration curve predetermined by obtaining a value of the oscillation frequency.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20574787A JPS6447932A (en) | 1987-08-19 | 1987-08-19 | Viscosity measuring apparatus |
DE19883885200 DE3885200T2 (en) | 1987-08-19 | 1988-08-17 | Device for measuring a property of a liquid. |
EP19880307619 EP0304283B1 (en) | 1987-08-19 | 1988-08-17 | Apparatus for measuring a characteristic of a liquid |
US07/767,532 US5211054A (en) | 1987-08-19 | 1991-09-26 | Method and system for analyzing a gelation reaction by utilizing a piezoelectric resonator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20574787A JPS6447932A (en) | 1987-08-19 | 1987-08-19 | Viscosity measuring apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447932A true JPS6447932A (en) | 1989-02-22 |
Family
ID=16511986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20574787A Pending JPS6447932A (en) | 1987-08-19 | 1987-08-19 | Viscosity measuring apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447932A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02226043A (en) * | 1989-02-27 | 1990-09-07 | Seiko Instr Inc | Reaction measuring apparatus |
-
1987
- 1987-08-19 JP JP20574787A patent/JPS6447932A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02226043A (en) * | 1989-02-27 | 1990-09-07 | Seiko Instr Inc | Reaction measuring apparatus |
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