GB618956A - An improved instrument or measurement transformer for metering, regulating and controlling, and more especially useful for remote control purposes
- Google Patents
An improved instrument or measurement transformer for metering, regulating and controlling, and more especially useful for remote control purposes
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
Application number
GB950/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Landis and Gyr AGfiledCriticalLandis and Gyr AG
Publication of GB618956ApublicationCriticalpatent/GB618956A/en
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D3/00—Control of position or direction
G05D3/10—Control of position or direction without using feedback
Abstract
618,956. Electric indicating systems. LANDIS & GYR SOC. ANON. Jan. 10, 1946, No. 950. Convention date, Jan. 12, 1945. [Class 40 (i)] A transmitter co-operating with a resultant field receiver consists of at least two magnetically coupled windingsrelativelyrotatable and directly connected electrically so as to vary signal currents in opposite sense. A rotatable winding 1, Fig. 1, co-operates with two fixed windings 2, 3 to provide two inversely varying currents for operating a resultant field indicator 16 which preferably incorporates a variable resistance 19 to adjust the scale of the deflection. In a modification, further windings on the cores of windings 2, 3 may be fed with A.C., the source 14 then being removed, Fig. 3 (not shown).
GB950/46A1945-01-121946-01-10An improved instrument or measurement transformer for metering, regulating and controlling, and more especially useful for remote control purposes
ExpiredGB618956A
(en)