GB614417A - Improvements in or relating to electric counting and timing apparatus - Google Patents

Improvements in or relating to electric counting and timing apparatus

Info

Publication number
GB614417A
GB614417A GB91746A GB91746A GB614417A GB 614417 A GB614417 A GB 614417A GB 91746 A GB91746 A GB 91746A GB 91746 A GB91746 A GB 91746A GB 614417 A GB614417 A GB 614417A
Authority
GB
United Kingdom
Prior art keywords
frequency
standard
dividers
unknown
interval
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
GB91746A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB91746A priority Critical patent/GB614417A/en
Publication of GB614417A publication Critical patent/GB614417A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents

Abstract

614,417. Frequency measurements. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Jan. 10, 1946, No. 917. [Class 37] Relates to the system of frequency measurement in which the unknown frequency and a standard frequency are each subjected to successive steps of frequency division, and the phases of corresponding steps of division are compared at the end of a known interval, and consists in defining the interval by one complete cycle of the frequency divider operating on the standard frequency. Standard oscillations from OSC, Fig. 1, are applied to frequency dividers D11 ... D14 over an electronic switch G3, and the unknown frequency from S, or a beat frequency of the unknown and standard frequency, is applied to frequency dividers D1 ... D4 over an electronic switch G2. Phase indicators P1 ... P4 interconnect the outputs of the frequency dividers. The first pulse from divider D14 is applied to G1 to close switch G2 and apply standard oscillations to frequency dividers D1 ... D4, thus stabilizing the phase differences attained by the end of the interval defined by the operation of G1. Specification 601,985 is referred to.
GB91746A 1946-01-10 1946-01-10 Improvements in or relating to electric counting and timing apparatus Expired GB614417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB91746A GB614417A (en) 1946-01-10 1946-01-10 Improvements in or relating to electric counting and timing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB91746A GB614417A (en) 1946-01-10 1946-01-10 Improvements in or relating to electric counting and timing apparatus

Publications (1)

Publication Number Publication Date
GB614417A true GB614417A (en) 1948-12-15

Family

ID=9712778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB91746A Expired GB614417A (en) 1946-01-10 1946-01-10 Improvements in or relating to electric counting and timing apparatus

Country Status (1)

Country Link
GB (1) GB614417A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196497A (en) * 1986-10-15 1988-04-27 Telemus Electronic Systems Inc Apparatus for measuring the frequency of microwave signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196497A (en) * 1986-10-15 1988-04-27 Telemus Electronic Systems Inc Apparatus for measuring the frequency of microwave signals
GB2196497B (en) * 1986-10-15 1991-01-23 Telemus Electronic Systems Inc Apparatus for measuring the frequency of microwave signals

Similar Documents

Publication Publication Date Title
GB614417A (en) Improvements in or relating to electric counting and timing apparatus
SU577469A1 (en) Arrangement for measuring frequency of three-phase sinusoidal voltage
SU682844A1 (en) Digital trigger phase meter
SU534699A1 (en) Digital frequency meter
SU655990A1 (en) Converter of small capacitance and inductance increments into voltage
SU410330A1 (en)
SU382017A1 (en) METHOD OF MEASUREMENT OF PHASE SHIFT BY MEANS OF DIGITAL PHASOMETERS
FR969757A (en) Microwave generator system, more specifically of the magnetron type
SU815884A1 (en) Frequency doubler
SU467302A1 (en) Digital resistance, capacitance and inductance meter
GB628615A (en) Improvements in and relating to the measurement of phase distortion in electrical circuits
GB1195188A (en) Improvements in or relating to Phase Measuring Circuit Arrangements.
SU633152A1 (en) Synchronizing arrangement
SU365821A1 (en) PULSE FORMER
SU124339A1 (en) Frequency telemetry method
SU625957A1 (en) Device for checking railway line ballast normative resistance
SU699448A1 (en) Digital voltmeter
GB1482014A (en) Phase sensitive detector
SU771848A1 (en) Multichannel device for control of power-diode converter
SU510768A1 (en) A device for obtaining a discrete frequency grid
SU662905A1 (en) Pulsed meter of non-linearities of delay line dispersion characteristics
SU744997A2 (en) Frequency counter
GB601985A (en) Improvements in or relating to electric counting apparatus
GB626700A (en) Improved arrangement for monitoring the frequency of an alternating current
JPS57175276A (en) Delayed time measuring circuit