GB1146096A - Ac-fed measuring device for controlling an adjustment member - Google Patents
Ac-fed measuring device for controlling an adjustment memberInfo
- Publication number
- GB1146096A GB1146096A GB20110/67A GB2011067A GB1146096A GB 1146096 A GB1146096 A GB 1146096A GB 20110/67 A GB20110/67 A GB 20110/67A GB 2011067 A GB2011067 A GB 2011067A GB 1146096 A GB1146096 A GB 1146096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistor
- diode
- resistors
- circuit
- automatic temperature
- 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
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
- G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
- G05B1/02—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value
- G05D23/1904—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value variable in time
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Volume Flow (AREA)
Abstract
1,146,096. Automatic temperature control systems. LANDIS & GYR A.G. May 1, 1967 [June 22, 1966], No.20110/67. Heading G3R. An automatic temperature ventilation or air conditioning control system has the sensing and setting members fed with A.C. and connected by a single pair of heads to a differencing circuit which controls the restoring circuit. Positive half cycles from an A.C. supply 4 flow serially through a thermistor 9 of either sign, diodes 11, 16 and resistor 17, and negative half waves through a setting resistor 10, diode 12, resistor 18 and diode 15, the voltages across resistors 17, 18 charging capacitors 21, 22 in series opposition, the difference being applied to a transistor amplifier 26, energizing a relay 39 or 41 according to the sense of the error. For proportional control, a variable resistor (42) Fig. 2 (not shown) driven from a heating fluid-flow valve motor may be series connected with resistor 17. A further resistor (44) may adjust the dead zone. A further circuit 2 may be connected across terminals 45, 46 for combined heating and cooling systems. Resistors 9, 10 may be multiplied and may be of relatively high resistance to resistors 17, 18. The amplifier 26 is supplied from a potentiometer comprising a resistor 31 and diode 32, the diode having preferably the same transmission characteristic as transistor 33 to assist stabilization.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH900866A CH447320A (en) | 1966-06-22 | 1966-06-22 | AC-fed measuring device for controlling an actuator, in particular for heating, ventilation or air conditioning systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1146096A true GB1146096A (en) | 1969-03-19 |
Family
ID=4347326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20110/67A Expired GB1146096A (en) | 1966-06-22 | 1967-05-01 | Ac-fed measuring device for controlling an adjustment member |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT272704B (en) |
| BE (1) | BE694687A (en) |
| CH (1) | CH447320A (en) |
| DE (1) | DE1538670B2 (en) |
| GB (1) | GB1146096A (en) |
| NL (1) | NL6703541A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH623943A5 (en) * | 1978-01-27 | 1981-06-30 | Landis & Gyr Ag | AC-powered regulating equipment |
-
1966
- 1966-06-22 CH CH900866A patent/CH447320A/en unknown
- 1966-07-05 DE DE19661538670 patent/DE1538670B2/en active Pending
- 1966-07-06 AT AT649466A patent/AT272704B/en active
-
1967
- 1967-02-27 BE BE694687D patent/BE694687A/xx unknown
- 1967-03-06 NL NL6703541A patent/NL6703541A/xx unknown
- 1967-05-01 GB GB20110/67A patent/GB1146096A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1538670B2 (en) | 1971-12-23 |
| DE1538670A1 (en) | 1970-10-08 |
| AT272704B (en) | 1969-07-25 |
| BE694687A (en) | 1967-07-31 |
| CH447320A (en) | 1967-11-30 |
| NL6703541A (en) | 1967-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1438684A (en) | Fluid flow rate control system | |
| US4257395A (en) | Fluid flow controller | |
| GB1360421A (en) | Fuel injection systems | |
| GB1257552A (en) | ||
| US3403855A (en) | Automatic regulators of air conditioning systems of vehicles | |
| US3594546A (en) | Air temperature control apparatus | |
| GB1313999A (en) | Temperatureregulating apparatus | |
| GB1200099A (en) | Differential fluid-pressure-responsive device and diaphragm therefor | |
| US4489882A (en) | Variable time constant anticipation thermostat | |
| GB717977A (en) | Improvements relating to regulating systems | |
| GB1204882A (en) | Voltage regulators for use in battery charging systems | |
| GB1206808A (en) | Apparatus for controlling the temperature of fluid in hydraulic circuits | |
| GB1146096A (en) | Ac-fed measuring device for controlling an adjustment member | |
| US3317136A (en) | Thermostatic gas flow control means | |
| US3838810A (en) | Control for regulating energy input to a gas burner | |
| GB686607A (en) | Improvements in or relating to electrical temperature regulating apparatus | |
| GB1111747A (en) | Controllers for actuators controlling conditions in a system | |
| GB721572A (en) | Improvements in and relating to temperature compensating systems for electrical heating devices | |
| GB1063747A (en) | Improvements in or relating to control units for automatic temperature control systems | |
| US3976925A (en) | Integral motor controller | |
| GB1339258A (en) | Proportional-integral electric regulating means | |
| US2522287A (en) | Cabin heating control | |
| US3693067A (en) | Adjustable proportional response for balanceable system | |
| GB1017530A (en) | Temperature controlling device | |
| GB1326883A (en) | Temperature regulating means |