JPS5471664A - Liquid level gauge - Google Patents
Liquid level gaugeInfo
- Publication number
- JPS5471664A JPS5471664A JP13856577A JP13856577A JPS5471664A JP S5471664 A JPS5471664 A JP S5471664A JP 13856577 A JP13856577 A JP 13856577A JP 13856577 A JP13856577 A JP 13856577A JP S5471664 A JPS5471664 A JP S5471664A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- current
- levels
- conductor
- electric resistance
- 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 continuously and surely measure the liquid levels of cryogenic liquid by supplying the current of levels changing at a specified cycle to a superconductive wire thereby measuring the liquid levels.
CONSTITUTION: When the current of a level above the transition cirrent is applied for a specified short time to a superconductor 5 which is dipped in cryogenic liquid 2 such as helium, etc., the portions of the conductor 5 being dipped in the liquid 2 becomes superconducting of electric resistance value zero and the electric resistance of the conductor 5 of the normally onducting state above the liquid level of the liquid 2 changes according to the liquid level. when in this state the current to be applied for a specified time to the conductor 5 is brought to a level below the transition current and the voltage corresponding to the electric resistance of normally conducting part is detected, the current application time becomes short and the evaporation of the liquid 2 owing to current application is prevented. Hence, if the current is applied at the specified cycle, the measurement of the levels of the cryogenic liquid may be continuously and surely performed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13856577A JPS5471664A (en) | 1977-11-18 | 1977-11-18 | Liquid level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13856577A JPS5471664A (en) | 1977-11-18 | 1977-11-18 | Liquid level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5471664A true JPS5471664A (en) | 1979-06-08 |
Family
ID=15225104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13856577A Pending JPS5471664A (en) | 1977-11-18 | 1977-11-18 | Liquid level gauge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5471664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7762132B2 (en) | 2007-01-17 | 2010-07-27 | Mitsubishi Electric Corporation | Refrigerant liquid level measuring device, refrigerant liquid level measuring method, and superconducting magnet device |
| GB2483704A (en) * | 2010-09-17 | 2012-03-21 | Siemens Plc | Method for measuring the level of liquid cryogen in a cryogen vessel |
-
1977
- 1977-11-18 JP JP13856577A patent/JPS5471664A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7762132B2 (en) | 2007-01-17 | 2010-07-27 | Mitsubishi Electric Corporation | Refrigerant liquid level measuring device, refrigerant liquid level measuring method, and superconducting magnet device |
| GB2483704A (en) * | 2010-09-17 | 2012-03-21 | Siemens Plc | Method for measuring the level of liquid cryogen in a cryogen vessel |
| GB2483704B (en) * | 2010-09-17 | 2012-09-26 | Siemens Plc | Method for measuring the level of liquid cryogen in a cryogen vessel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2023308A1 (en) | Superconductor sensors | |
| JPS5471664A (en) | Liquid level gauge | |
| JPS5593024A (en) | Superconductive liquid level indicator | |
| Gorter et al. | On the motion of the boundary between the normal and the superconductive state in a cylindrical wire carrying a strong current | |
| JPS5289970A (en) | Insulation resistance measuring method for distribution lines in live condition | |
| JPS5571914A (en) | Superconductive liquid level indicator | |
| JPS6415617A (en) | Superconducting device | |
| DE3275866D1 (en) | Current generating circuit device for measuring cryogenic liquefied gas liquid level meter with superconductive wire | |
| JPS5576960A (en) | Method of measuring low grounding resistance | |
| JPS5368290A (en) | Insulation resistance measuring apparatus of ground system | |
| JPS57173985A (en) | Device for super conductor characteristic measurement | |
| JPS5485065A (en) | Liquid level gauge | |
| JPS6447924A (en) | Temperature measuring apparatus | |
| JPS5526409A (en) | Liquid surface detection element of extremely low-temperature cooling medium | |
| JPS5797627A (en) | Formation of electric wiring | |
| JPS5522106A (en) | Defective portion detection of stabilized metal layer of stabilized superconductive wire | |
| JACKEL | Experimental studies of superconducting weak links(electrical properties and electric current in Josephson junctions)[Ph. D. Thesis] | |
| JPS6436003A (en) | Measuring wire for cryogenic device | |
| JPS5421766A (en) | Liquid level gauge | |
| HILLMANN | Superconducting materials for pulsed field application[Final Report] | |
| HOLDERMAN et al. | Germanium coated microbridge and method[Patent] | |
| Zenkevich et al. | Losses in Combined Superconductors in a Rapidly Changing Magnetic Field | |
| Clark et al. | Development of standards for superconductors[Interim Report, Oct. 1980- Jan. 1982] | |
| ELBINDARI | Stability of a superconductor as influenced by the substrate(Effects of substrates on stability of superconductor and electrical properties of superconductors for various conditions) | |
| KURAOKA | Liquid Helium Level Meter by Using Two Steps Pulse Current |