JPS5542048A - Method of and apparatus for measuring freezing point depression using ultrasonic wave - Google Patents
Method of and apparatus for measuring freezing point depression using ultrasonic waveInfo
- Publication number
- JPS5542048A JPS5542048A JP11549578A JP11549578A JPS5542048A JP S5542048 A JPS5542048 A JP S5542048A JP 11549578 A JP11549578 A JP 11549578A JP 11549578 A JP11549578 A JP 11549578A JP S5542048 A JPS5542048 A JP S5542048A
- Authority
- JP
- Japan
- Prior art keywords
- specimen
- specimen liquid
- freezing
- point depression
- freezing point
- 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 the freezing point depression by applying ultrasonic vibration to specimen liquid of sub cooled state to thereby induce freezing of the specimen liquid and inserting only a temperature detector into the specimen.
CONSTITUTION: After a power is thrown, a cooling plate 8 is controlled at low temperature by an outside cooler. When a start switch 15 is closed, a nozzle 18 is inserted into a specimen container 19 by the instruction of a microcomputer 16, and specimen liquid 7 is introduced simultaneously into a flow cell 1. Then, a thermistor 6 is inserted into the specimen liquid 7. Vibration of a ultrasonic vibrator 5 is transmitted to the specimen liquid to stimulate freezing to allow the entire specimen liquid to be frozne. The freezing temperature is calculated by the microcomputer 16, and outputted to a display unit 32 or a printer 33.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11549578A JPS5542048A (en) | 1978-09-19 | 1978-09-19 | Method of and apparatus for measuring freezing point depression using ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11549578A JPS5542048A (en) | 1978-09-19 | 1978-09-19 | Method of and apparatus for measuring freezing point depression using ultrasonic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5542048A true JPS5542048A (en) | 1980-03-25 |
Family
ID=14663914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11549578A Pending JPS5542048A (en) | 1978-09-19 | 1978-09-19 | Method of and apparatus for measuring freezing point depression using ultrasonic wave |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5542048A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014240839A (en) * | 2002-08-06 | 2014-12-25 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | Tear film osmometry |
| US9217701B2 (en) | 2002-08-06 | 2015-12-22 | The Regents Of The University Of California | Biomarker normalization |
| US9335243B2 (en) | 2006-12-11 | 2016-05-10 | Tearlab Research, Inc. | Systems and methods for collecting tear film and measuring tear film osmolarity |
| CN105588852A (en) * | 2016-01-23 | 2016-05-18 | 东北石油大学 | Crude oil condensation point measurement device based on ultrasonic technology and measurement method adopting crude oil condensation point measurement device |
| US11536707B2 (en) | 2014-09-23 | 2022-12-27 | Tearlab Research, Inc. | Systems and methods for integration of microfluidic tear collection and lateral flow analysis of analytes of interest |
-
1978
- 1978-09-19 JP JP11549578A patent/JPS5542048A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014240839A (en) * | 2002-08-06 | 2014-12-25 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | Tear film osmometry |
| US9217701B2 (en) | 2002-08-06 | 2015-12-22 | The Regents Of The University Of California | Biomarker normalization |
| US9217702B2 (en) | 2002-08-06 | 2015-12-22 | The Regents Of The University Of California | Biomarker normalization |
| US9335243B2 (en) | 2006-12-11 | 2016-05-10 | Tearlab Research, Inc. | Systems and methods for collecting tear film and measuring tear film osmolarity |
| US11536707B2 (en) | 2014-09-23 | 2022-12-27 | Tearlab Research, Inc. | Systems and methods for integration of microfluidic tear collection and lateral flow analysis of analytes of interest |
| CN105588852A (en) * | 2016-01-23 | 2016-05-18 | 东北石油大学 | Crude oil condensation point measurement device based on ultrasonic technology and measurement method adopting crude oil condensation point measurement device |
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