GB1389015A - Radio active level indicator - Google Patents
Radio active level indicatorInfo
- Publication number
- GB1389015A GB1389015A GB3975371A GB3975371A GB1389015A GB 1389015 A GB1389015 A GB 1389015A GB 3975371 A GB3975371 A GB 3975371A GB 3975371 A GB3975371 A GB 3975371A GB 1389015 A GB1389015 A GB 1389015A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yoke
- container
- meter
- liquid
- level
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/288—X-rays; Gamma rays or other forms of ionising radiation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/18—Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
Abstract
1389015 Measuring the level of a liquid in a container; liquid level variation WALTER KIDDE CO Ltd 8 June 1972 [24 Aug 1971] 39753/71 Headings G1A and G1H In a device for determining the level 13 of a liquid in a container 12 such as a fire extinguisher a radio-active source 3 (Caesium 137) and a detector 4 (geiger muller tube) are mounted on opposite arms 2 of a yoke I so that the radiation reaching the detector has passed through the container 12. Thus by moving the yoke up or down the container the liquid level 13 can be detected. The arms of the yoke may be moved by adjustment screw and locking arrangement 14 and the detectors output pulses are fed via an uni-junction transistor Fig.2 (not shown) to an electrolytic integrating capacitor which controls the base of a transistor in one leg of a bridge circuit including a meter. In use the yoke is positioned at the base of the cylinder and a variable resistor is adjusted until there is a low reading on the meter and the yoke is moved up the cylinder till the meter reading changes to a higher reading. The device can be powered by a battery. The device may be attached to the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3975371A GB1389015A (en) | 1971-08-24 | 1971-08-24 | Radio active level indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3975371A GB1389015A (en) | 1971-08-24 | 1971-08-24 | Radio active level indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1389015A true GB1389015A (en) | 1975-04-03 |
Family
ID=10411296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3975371A Expired GB1389015A (en) | 1971-08-24 | 1971-08-24 | Radio active level indicator |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1389015A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2198843A (en) * | 1986-12-12 | 1988-06-22 | British Petroleum Co Plc | Densitometer |
| GB2200206A (en) * | 1986-12-19 | 1988-07-27 | Subsea Offshore Ltd | Detecting matter in hollow undersea structures |
| US11378436B2 (en) | 2018-12-10 | 2022-07-05 | Carrier Corporation | Adjustable liquid level indicators |
| EP4148398A1 (en) * | 2018-11-30 | 2023-03-15 | Carrier Corporation | Printed capacitive liquid level sensor for fire suppression |
-
1971
- 1971-08-24 GB GB3975371A patent/GB1389015A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2198843A (en) * | 1986-12-12 | 1988-06-22 | British Petroleum Co Plc | Densitometer |
| GB2200206A (en) * | 1986-12-19 | 1988-07-27 | Subsea Offshore Ltd | Detecting matter in hollow undersea structures |
| GB2200206B (en) * | 1986-12-19 | 1991-02-13 | Subsea Offshore Ltd | Detection apparatus and method |
| EP4148398A1 (en) * | 2018-11-30 | 2023-03-15 | Carrier Corporation | Printed capacitive liquid level sensor for fire suppression |
| US11944857B2 (en) | 2018-11-30 | 2024-04-02 | Carrier Corporation | Printed capacitive liquid level sensor for fire suppression |
| US11378436B2 (en) | 2018-12-10 | 2022-07-05 | Carrier Corporation | Adjustable liquid level indicators |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |