DE1548952B2 - - Google Patents
Info
- Publication number
- DE1548952B2 DE1548952B2 DE19511548952 DE1548952A DE1548952B2 DE 1548952 B2 DE1548952 B2 DE 1548952B2 DE 19511548952 DE19511548952 DE 19511548952 DE 1548952 A DE1548952 A DE 1548952A DE 1548952 B2 DE1548952 B2 DE 1548952B2
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- zener diode
- resistor
- transistor
- diode
- 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.)
- Granted
Links
- 230000015556 catabolic process Effects 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- G01F23/24—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 resistance of resistors due to contact with conductor fluid
- G01F23/246—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 resistance of resistors due to contact with conductor fluid thermal devices
- G01F23/247—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 resistance of resistors due to contact with conductor fluid thermal devices for discrete levels
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Amplifiers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19511548952 DE1548952A1 (de) | 1951-01-28 | 1951-01-28 | Tankueberfuellsicherung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19511548952 DE1548952A1 (de) | 1951-01-28 | 1951-01-28 | Tankueberfuellsicherung |
| DEF0048178 | 1966-01-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1548952A1 DE1548952A1 (de) | 1970-04-02 |
| DE1548952B2 true DE1548952B2 (cg-RX-API-DMAC7.html) | 1973-09-13 |
| DE1548952C3 DE1548952C3 (cg-RX-API-DMAC7.html) | 1974-04-18 |
Family
ID=25752892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19511548952 Granted DE1548952A1 (de) | 1951-01-28 | 1951-01-28 | Tankueberfuellsicherung |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1548952A1 (cg-RX-API-DMAC7.html) |
-
1951
- 1951-01-28 DE DE19511548952 patent/DE1548952A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE1548952A1 (de) | 1970-04-02 |
| DE1548952C3 (cg-RX-API-DMAC7.html) | 1974-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |