GB1167730A - Improvements in or relating to apparatus for giving an indication of the frequency of an oscillatory signal - Google Patents

Improvements in or relating to apparatus for giving an indication of the frequency of an oscillatory signal

Info

Publication number
GB1167730A
GB1167730A GB3196459A GB3196459A GB1167730A GB 1167730 A GB1167730 A GB 1167730A GB 3196459 A GB3196459 A GB 3196459A GB 3196459 A GB3196459 A GB 3196459A GB 1167730 A GB1167730 A GB 1167730A
Authority
GB
United Kingdom
Prior art keywords
frequency
detectors
indicated
phase
waveguide
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
GB3196459A
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.)
PETER CHARLTON BUSTON
General Electric Co PLC
Original Assignee
PETER CHARLTON BUSTON
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 PETER CHARLTON BUSTON, General Electric Co PLC filed Critical PETER CHARLTON BUSTON
Priority to GB3196459A priority Critical patent/GB1167730A/en
Publication of GB1167730A publication Critical patent/GB1167730A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

1, 167, 730. Frequency measurement. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd., and P. C. BUTSON. Dec. 19, 1960 [Sept. 18, 1959], No.31964/59. Heading G1U. Frequency is indicated by radial deflection of a spot on a cathode ray tube screen, the direction of deflection corresponding to the frequency. The signal whose frequency is to be indicated is made to set up a standing wave in a waveguide 1 by a short circuit 3. One component of the standing wave is amplitude - or phase-modulated at frequency f, e.g. by supplying an oscillatory signal to a rectifier 2 or to a variable phase shifter. Further waveguides, terminated by short circuits 10, 13 and crystal detectors 9, 12, are coupled to waveguide 1 at points 5, 6 separated by #/8, # being the wavelength of the mean frequency of which indication is required. Detectors 9, 12 supply oscillations, of frequency f and of phase depending on the frequency of the signal to be indicated, to phase sensitive detectors 18, 19 where they are compared with oscillations of frequency f from oscillator 4. The outputs of the phase sensitive detectors therefore depend on the frequency to be indicated and are supplied to the vertical and horizontal deflectors of the cathode ray tube. Each crystal detector may be replaced by two detectors with their couplings to waveguide 1 separated by #/4, their outputs being subtracted. The range of frequencies which will give a unique direction of deflection is greater as junctions 5, 6 are closer to 3.
GB3196459A 1959-09-18 1959-09-18 Improvements in or relating to apparatus for giving an indication of the frequency of an oscillatory signal Expired GB1167730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3196459A GB1167730A (en) 1959-09-18 1959-09-18 Improvements in or relating to apparatus for giving an indication of the frequency of an oscillatory signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3196459A GB1167730A (en) 1959-09-18 1959-09-18 Improvements in or relating to apparatus for giving an indication of the frequency of an oscillatory signal

Publications (1)

Publication Number Publication Date
GB1167730A true GB1167730A (en) 1969-10-22

Family

ID=10331014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3196459A Expired GB1167730A (en) 1959-09-18 1959-09-18 Improvements in or relating to apparatus for giving an indication of the frequency of an oscillatory signal

Country Status (1)

Country Link
GB (1) GB1167730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108710025A (en) * 2016-01-22 2018-10-26 浙江大学台州研究院 Quartz wafer grinding control based on Waveform Matching and frequency measuring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108710025A (en) * 2016-01-22 2018-10-26 浙江大学台州研究院 Quartz wafer grinding control based on Waveform Matching and frequency measuring method
CN108710025B (en) * 2016-01-22 2020-06-09 浙江大学台州研究院 Quartz wafer grinding control and frequency measurement method based on waveform matching

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents