DE2801586A1 - Fluessigkeitsstandanzeiger - Google Patents
FluessigkeitsstandanzeigerInfo
- Publication number
- DE2801586A1 DE2801586A1 DE19782801586 DE2801586A DE2801586A1 DE 2801586 A1 DE2801586 A1 DE 2801586A1 DE 19782801586 DE19782801586 DE 19782801586 DE 2801586 A DE2801586 A DE 2801586A DE 2801586 A1 DE2801586 A1 DE 2801586A1
- Authority
- DE
- Germany
- Prior art keywords
- transistor
- liquid
- probe
- liquid level
- level indicator
- 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.)
- Ceased
Links
- 239000007788 liquid Substances 0.000 title claims description 27
- 239000012530 fluid Substances 0.000 claims description 22
- 239000000523 sample Substances 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 9
- 239000003981 vehicle Substances 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
-
- 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
- G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/265—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1832/77A GB1598447A (en) | 1977-01-18 | 1977-01-18 | Liquid level indicators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2801586A1 true DE2801586A1 (de) | 1978-07-20 |
Family
ID=9728790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19782801586 Ceased DE2801586A1 (de) | 1977-01-18 | 1978-01-14 | Fluessigkeitsstandanzeiger |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE2801586A1 (en]) |
| ES (1) | ES465640A1 (en]) |
| FR (1) | FR2377615A1 (en]) |
| GB (1) | GB1598447A (en]) |
| IT (1) | IT1101937B (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2169082A (en) * | 1984-12-13 | 1986-07-02 | Lin Shang Jing | High frequency electrode type low-level alarm for drip-feed injection |
| CN108332820B (zh) * | 2018-04-25 | 2024-06-21 | 深圳市科烸芯科技有限公司 | 一种液位检测电路和液位检测装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE956629C (de) * | 1954-04-21 | 1957-01-24 | Peters Ag Claudius | Einrichtung zum Auswerten einer Zustandsaenderung, insbesondere zum Anzeigen des Fuellungsgrades von Vorratsbehaeltern aller Art |
| DE2617177A1 (de) * | 1975-04-19 | 1976-10-28 | Lucas Electrical Co Ltd | Fluessigkeitsstand-detektorschaltung |
-
1977
- 1977-01-18 GB GB1832/77A patent/GB1598447A/en not_active Expired
- 1977-12-30 ES ES465640A patent/ES465640A1/es not_active Expired
-
1978
- 1978-01-14 DE DE19782801586 patent/DE2801586A1/de not_active Ceased
- 1978-01-16 IT IT47646/78A patent/IT1101937B/it active
- 1978-01-18 FR FR7801386A patent/FR2377615A1/fr active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE956629C (de) * | 1954-04-21 | 1957-01-24 | Peters Ag Claudius | Einrichtung zum Auswerten einer Zustandsaenderung, insbesondere zum Anzeigen des Fuellungsgrades von Vorratsbehaeltern aller Art |
| DE2617177A1 (de) * | 1975-04-19 | 1976-10-28 | Lucas Electrical Co Ltd | Fluessigkeitsstand-detektorschaltung |
Also Published As
| Publication number | Publication date |
|---|---|
| IT7847646A0 (it) | 1978-01-16 |
| FR2377615A1 (fr) | 1978-08-11 |
| ES465640A1 (es) | 1978-09-16 |
| IT1101937B (it) | 1985-10-07 |
| FR2377615B1 (en]) | 1980-08-22 |
| GB1598447A (en) | 1981-09-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8120 | Willingness to grant licences paragraph 23 | ||
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |