GB514990A - Improvements in or relating to electrical control systems - Google Patents

Improvements in or relating to electrical control systems

Info

Publication number
GB514990A
GB514990A GB8412/38A GB841238A GB514990A GB 514990 A GB514990 A GB 514990A GB 8412/38 A GB8412/38 A GB 8412/38A GB 841238 A GB841238 A GB 841238A GB 514990 A GB514990 A GB 514990A
Authority
GB
United Kingdom
Prior art keywords
relays
resistance
balance
valve
shunt resistances
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
Application number
GB8412/38A
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.)
CHARLES TAGLIABUE Manufacturing CO
Original Assignee
CHARLES TAGLIABUE Manufacturing CO
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 CHARLES TAGLIABUE Manufacturing CO filed Critical CHARLES TAGLIABUE Manufacturing CO
Publication of GB514990A publication Critical patent/GB514990A/en
Expired legal-status Critical Current

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
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/012—Automatic controllers electric details of the transmission means
    • G05B11/016—Automatic controllers electric details of the transmission means using inductance means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Particle Accelerators (AREA)

Abstract

514,990. Thermionic relay circuits. TAGLIABUE MANUFACTURING CO., C. J. March 18, 1938, No. 8412. Convention date, April 17, 1937. Addition to 512,984. Drawings to Specification. [Class 40 (v)] [Also in Groups XXXVIII and XXXVI] The control system of the automaticallybalanced bridge type described in the parent Specification and wherein a mirror galvanometer controls the balance motor by means of a photoelectric cell, a therm'onic valve amplifier and relays controlled by anode current, is modified in the following respects : (1) the grid bias control circuit arranged to provide two different time-constants under control of the relays is replaced by a circuit independent of the relays and comprising a capacity and resistance in series shunted by a resistance, to effect an initial rapid response of the valve (2) the shunt resistances which the relays connect up on operation are of such value as to cause the appropriate relay to vibrate when the system is approaching balance from either direction so that balance is effected in a step-by-step manner, but this vibration does not occur on rapid deviations of the galvanometer, (3) a resistance is included in the anode circuit to minimize current variation due to the inclusion of the shunt resistances on the relays.
GB8412/38A 1937-04-17 1938-03-18 Improvements in or relating to electrical control systems Expired GB514990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514990XA 1937-04-17 1937-04-17

Publications (1)

Publication Number Publication Date
GB514990A true GB514990A (en) 1939-11-23

Family

ID=21971675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8412/38A Expired GB514990A (en) 1937-04-17 1938-03-18 Improvements in or relating to electrical control systems

Country Status (1)

Country Link
GB (1) GB514990A (en)

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