GB1010498A - Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages - Google Patents

Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages

Info

Publication number
GB1010498A
GB1010498A GB3136463A GB3136463A GB1010498A GB 1010498 A GB1010498 A GB 1010498A GB 3136463 A GB3136463 A GB 3136463A GB 3136463 A GB3136463 A GB 3136463A GB 1010498 A GB1010498 A GB 1010498A
Authority
GB
United Kingdom
Prior art keywords
voltage
arrangement
transistor
resistor
meter
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
GB3136463A
Inventor
Arthur Edgar Crump
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3136463A priority Critical patent/GB1010498A/en
Publication of GB1010498A publication Critical patent/GB1010498A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0084Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

1,010,498. Voltage measurement, electric meters. GENERAL ELECTRIC CO Ltd. Aug. 10,1964 [Aug. 8,1963], No. 31364/63. Headings G1Q and G1U. In an arrangement for measuring unidirectional voltage, the voltage to be measured is applied as an input to the base of a transistor 1 whose emitter and collector are connected via resistors 4 and 6 respectively to ground, the collector also being connected via a meter 2 to a suitable voltage 3. In use the current through the resistor 6 is such that the total current supplied to the meter is substantially directly proportional to the voltage being measured when in excess of a minimum value. The arrangement compensates for the effect of the non linearity of the transistor characteristic in the region of low input voltages. The transistor 1 is a silicon junction transistor, and the resistor 4 is temperature sensitive to compensate for the effect of temperature changes. The arrangement shown will measure negative voltages only, and these may be applied via a range switching arrangement. An arrangement consisting of a resistor 9 and zener diode 8 may be incorporated for calibrating the circuit. To use this arrangement the Zener voltage (which is known) is switched to the transistor input and the potentiometer 6 is then adjusted to produce the correct reading on the meter 2.
GB3136463A 1963-08-08 1963-08-08 Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages Expired GB1010498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3136463A GB1010498A (en) 1963-08-08 1963-08-08 Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3136463A GB1010498A (en) 1963-08-08 1963-08-08 Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages

Publications (1)

Publication Number Publication Date
GB1010498A true GB1010498A (en) 1965-11-17

Family

ID=10322002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3136463A Expired GB1010498A (en) 1963-08-08 1963-08-08 Improvements in or relating to electric circuit arrangements for measuring uni-directional voltages

Country Status (1)

Country Link
GB (1) GB1010498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543153A (en) * 1967-10-02 1970-11-24 Gen Electric Circuit for monitoring the current delivered by a switching regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543153A (en) * 1967-10-02 1970-11-24 Gen Electric Circuit for monitoring the current delivered by a switching regulator

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