CA951430A - Control apparatus - Google Patents
Control apparatusInfo
- Publication number
- CA951430A CA951430A CA070,042,A CA70042A CA951430A CA 951430 A CA951430 A CA 951430A CA 70042 A CA70042 A CA 70042A CA 951430 A CA951430 A CA 951430A
- Authority
- CA
- Canada
- Prior art keywords
- control apparatus
- control
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
- G01R17/06—Automatic balancing arrangements
- G01R17/08—Automatic balancing arrangements in which a force or torque representing the measured value is balanced by a force or torque representing the reference value
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
- Testing And Monitoring For Control Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80816769A | 1969-03-18 | 1969-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA951430A true CA951430A (en) | 1974-07-16 |
Family
ID=25198047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA070,042,A Expired CA951430A (en) | 1969-03-18 | 1969-12-16 | Control apparatus |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4925319B1 (en) |
CA (1) | CA951430A (en) |
FR (1) | FR2035031A1 (en) |
GB (1) | GB1309161A (en) |
NL (1) | NL7003639A (en) |
-
1969
- 1969-12-16 CA CA070,042,A patent/CA951430A/en not_active Expired
-
1970
- 1970-02-17 JP JP45013147A patent/JPS4925319B1/ja active Pending
- 1970-03-13 NL NL7003639A patent/NL7003639A/xx unknown
- 1970-03-16 FR FR7009340A patent/FR2035031A1/fr not_active Withdrawn
- 1970-03-18 GB GB1292870A patent/GB1309161A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2035031A1 (en) | 1970-12-18 |
JPS4925319B1 (en) | 1974-06-28 |
NL7003639A (en) | 1970-09-22 |
GB1309161A (en) | 1973-03-07 |
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