GB1105369A - Improvements in safety devices of the comparison type - Google Patents
Improvements in safety devices of the comparison typeInfo
- Publication number
- GB1105369A GB1105369A GB54424/65A GB5442465A GB1105369A GB 1105369 A GB1105369 A GB 1105369A GB 54424/65 A GB54424/65 A GB 54424/65A GB 5442465 A GB5442465 A GB 5442465A GB 1105369 A GB1105369 A GB 1105369A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- input signals
- trigger
- potentiometer
- dec
- 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
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/36—Control circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
- Safety Devices In Control Systems (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
1,105,369. Comparison circuits. COMPAGNIE FRANCAISE THOMSON-HOUSTONHOTCHKISS BRANDT. Dec. 22, 1965 [Dec. 23, 1964], No. 54424/65. Heading G1U. In a circuit in which a number of input signals V 1 , V 2 , V 3 are compared by finding the difference between each pair and feeding the difference to trigger circuits e.g. 3, 4, the triggering threshold is constantly proportional to the average of the input signals being compared. The average value of the input signals produced at D is fed to a first potentiometer 8 and, via an inverter 11, to a second potentiometer 12 to produce positive and negative threshold reference voltages for the trigger circuits, e.g. 3, 4. If for example V 1 differs from V 2 and V 3 circuit 3 or 4 will trigger (depending on whether V 1 is greater or less than V 2 ) to feed an output to logic circuit 5. An output from 5 is then fed back to gate 6 to close the channel from V 1 to the averaging circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR999775A FR1437417A (en) | 1964-12-23 | 1964-12-23 | Improvements to comparison type measuring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1105369A true GB1105369A (en) | 1968-03-06 |
Family
ID=8845441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB54424/65A Expired GB1105369A (en) | 1964-12-23 | 1965-12-22 | Improvements in safety devices of the comparison type |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE673637A (en) |
| DE (1) | DE1466667A1 (en) |
| FR (1) | FR1437417A (en) |
| GB (1) | GB1105369A (en) |
| NL (1) | NL6516481A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626187A (en) * | 1969-01-21 | 1971-12-07 | Nuclear Chicago Corp | Pulse-height analysis in scintillation counting |
| DE2151162C2 (en) * | 1970-04-29 | 1984-02-02 | Siemens AG, 1000 Berlin und 8000 München | Monitoring circuit for three-channel control system - incorporates oscillator, switching circuit and threshold circuit for analogue signal processing |
| DE2020940B2 (en) * | 1970-04-29 | 1973-05-03 | Siemens AG, 1000 Berlin u. 8000 München | DEVICE FOR THE FUNCTIONAL MONITORING OF THE INDIVIDUAL SET OF CONTROLS OF ANALOGUE MULTI-CHANNEL CONTROL SYSTEM |
| US4772445A (en) * | 1985-12-23 | 1988-09-20 | Electric Power Research Institute | System for determining DC drift and noise level using parity-space validation |
-
1964
- 1964-12-23 FR FR999775A patent/FR1437417A/en not_active Expired
-
1965
- 1965-12-13 BE BE673637A patent/BE673637A/xx unknown
- 1965-12-17 NL NL6516481A patent/NL6516481A/xx unknown
- 1965-12-22 GB GB54424/65A patent/GB1105369A/en not_active Expired
- 1965-12-22 DE DE19651466667 patent/DE1466667A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE673637A (en) | 1966-06-13 |
| DE1466667A1 (en) | 1969-06-19 |
| FR1437417A (en) | 1966-05-06 |
| NL6516481A (en) | 1966-06-24 |
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