JPS6413420A - Liquid level measuring instrument - Google Patents
Liquid level measuring instrumentInfo
- Publication number
- JPS6413420A JPS6413420A JP62170722A JP17072287A JPS6413420A JP S6413420 A JPS6413420 A JP S6413420A JP 62170722 A JP62170722 A JP 62170722A JP 17072287 A JP17072287 A JP 17072287A JP S6413420 A JPS6413420 A JP S6413420A
- Authority
- JP
- Japan
- Prior art keywords
- luminous flux
- reflected
- cube
- liquid level
- mirror
- 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 Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE:To make reflected luminous flux incident on the photodetection part of a light wave distance measuring instrument even when constitution is simple and the surface of liquid waves and to measure a distance stably by providing a corner cube which floats on the surface of the liquid. CONSTITUTION:A light source 8 projects luminous flux l on the corner cube 5 through a half-mirror 9, an objective 10, and a window 6 and the luminous flux l which is reflected by the reflecting surface of the corner cube passes through the same optical path and is reflected 9 toward the photodetection part 12. The luminous flux is reflected by the mirror 9 toward a reflecting mirror 11 as well, passes through the mirror 9, and reflected 11 toward the photodetection part 12. The photodetection part 12 photodetects those two pieces of luminous flux and a measurement part 13 measures the position of the liquid level according to the phase difference between the pieces of luminous flux. Here, a measurement part 13 calculates the difference between the positions of the reflecting surface of the cube 5 and the liquid level previously from the liquid specific gravity in a tank 1 and the weight of the cube 5, so the position of the reflecting surface of the cube 5 is only measured to know the position of the liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62170722A JPS6413420A (en) | 1987-07-08 | 1987-07-08 | Liquid level measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62170722A JPS6413420A (en) | 1987-07-08 | 1987-07-08 | Liquid level measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6413420A true JPS6413420A (en) | 1989-01-18 |
Family
ID=15910179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62170722A Pending JPS6413420A (en) | 1987-07-08 | 1987-07-08 | Liquid level measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6413420A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092271A (en) * | 2016-08-05 | 2016-11-09 | 武汉静磁栅机电制造有限公司 | A kind of laser liquid-level measurement apparatus and method |
| CN111623852A (en) * | 2020-04-24 | 2020-09-04 | 北京航天控制仪器研究所 | Device and method for measuring liquid oxygen level of rocket fuel by laser ranging |
| US20220146050A1 (en) * | 2019-03-11 | 2022-05-12 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Liquefied gas storage tank |
-
1987
- 1987-07-08 JP JP62170722A patent/JPS6413420A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092271A (en) * | 2016-08-05 | 2016-11-09 | 武汉静磁栅机电制造有限公司 | A kind of laser liquid-level measurement apparatus and method |
| US20220146050A1 (en) * | 2019-03-11 | 2022-05-12 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Liquefied gas storage tank |
| CN111623852A (en) * | 2020-04-24 | 2020-09-04 | 北京航天控制仪器研究所 | Device and method for measuring liquid oxygen level of rocket fuel by laser ranging |
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