JPS55138651A - Method and apparatus for ultrasonic measurement of solution concentration - Google Patents
Method and apparatus for ultrasonic measurement of solution concentrationInfo
- Publication number
- JPS55138651A JPS55138651A JP4681779A JP4681779A JPS55138651A JP S55138651 A JPS55138651 A JP S55138651A JP 4681779 A JP4681779 A JP 4681779A JP 4681779 A JP4681779 A JP 4681779A JP S55138651 A JPS55138651 A JP S55138651A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- measured
- output
- acoustical
- concentration
- 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To improve the accuracy of measurement by correcting the differences between the acoustical paramenters of the solution to be measured and the acoustical parameters of a standard solution, according to the temperature of the solution to be measured.
CONSTITUTION: In the concentration calculating part 5 of the solution to be measured, the difference between the output of the sample holding circuit 16 of an acoustical parameter measuring part 1 for the solution to be measured and the output of the amplifier 20 of an acoustical parameter generating part 2 for a standard solution is obtained by a differential output circuit. This differential output is applied to a multiplying-dividing circuit 22, by which the correction according to the temperature of the solution to be measured is done and further the standard solution concentration is added in an adder 23. The concentration of the solution to be measured having been measured in this way is fetched out as the output of the adder 23 and is converted to a digital signal by an A-D converter 25. This signal is displayed in a display device 26 and is recorded in a recorder 24.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4681779A JPS55138651A (en) | 1979-04-17 | 1979-04-17 | Method and apparatus for ultrasonic measurement of solution concentration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4681779A JPS55138651A (en) | 1979-04-17 | 1979-04-17 | Method and apparatus for ultrasonic measurement of solution concentration |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55138651A true JPS55138651A (en) | 1980-10-29 |
JPS6235063B2 JPS6235063B2 (en) | 1987-07-30 |
Family
ID=12757883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4681779A Granted JPS55138651A (en) | 1979-04-17 | 1979-04-17 | Method and apparatus for ultrasonic measurement of solution concentration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138651A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5877656A (en) * | 1981-11-04 | 1983-05-11 | Fuji Kogyo Kk | Ultrasonic measuring device for concentration |
-
1979
- 1979-04-17 JP JP4681779A patent/JPS55138651A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5877656A (en) * | 1981-11-04 | 1983-05-11 | Fuji Kogyo Kk | Ultrasonic measuring device for concentration |
JPH048746B2 (en) * | 1981-11-04 | 1992-02-18 |
Also Published As
Publication number | Publication date |
---|---|
JPS6235063B2 (en) | 1987-07-30 |
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