IE43897B1 - Improvements in and relating to frequency selective level meters and tracking generators - Google Patents

Improvements in and relating to frequency selective level meters and tracking generators

Info

Publication number
IE43897B1
IE43897B1 IE111275A IE111275A IE43897B1 IE 43897 B1 IE43897 B1 IE 43897B1 IE 111275 A IE111275 A IE 111275A IE 111275 A IE111275 A IE 111275A IE 43897 B1 IE43897 B1 IE 43897B1
Authority
IE
Ireland
Prior art keywords
frequency
khz
signal
multiplex equipment
modulation
Prior art date
Application number
IE111275A
Other languages
English (en)
Other versions
IE43897L (en
Original Assignee
Telectron Ltd
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 Telectron Ltd filed Critical Telectron Ltd
Priority to IE111275A priority Critical patent/IE43897B1/en
Priority to FR7614632A priority patent/FR2311313A1/fr
Priority to GB2005776A priority patent/GB1551322A/en
Priority to DE19762622304 priority patent/DE2622304A1/de
Publication of IE43897L publication Critical patent/IE43897L/xx
Publication of IE43897B1 publication Critical patent/IE43897B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency
    • G01H3/08—Analysing frequencies present in complex vibrations, e.g. comparing harmonics present
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0007—Frequency selective voltage or current level measuring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
IE111275A 1975-05-16 1975-05-16 Improvements in and relating to frequency selective level meters and tracking generators IE43897B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IE111275A IE43897B1 (en) 1975-05-16 1975-05-16 Improvements in and relating to frequency selective level meters and tracking generators
FR7614632A FR2311313A1 (fr) 1975-05-16 1976-05-14 Dispositif devant etre incorpore ou utilise en association avec un indicateur de niveau selectif en frequence et un generateur de poursuite
GB2005776A GB1551322A (en) 1975-05-16 1976-05-14 Frequency selective level meters and tracking generators
DE19762622304 DE2622304A1 (de) 1975-05-16 1976-05-17 Frequenzselektives messgeraet oder spurengenerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE111275A IE43897B1 (en) 1975-05-16 1975-05-16 Improvements in and relating to frequency selective level meters and tracking generators

Publications (2)

Publication Number Publication Date
IE43897L IE43897L (en) 1976-11-16
IE43897B1 true IE43897B1 (en) 1981-07-01

Family

ID=11022095

Family Applications (1)

Application Number Title Priority Date Filing Date
IE111275A IE43897B1 (en) 1975-05-16 1975-05-16 Improvements in and relating to frequency selective level meters and tracking generators

Country Status (4)

Country Link
DE (1) DE2622304A1 (en:Method)
FR (1) FR2311313A1 (en:Method)
GB (1) GB1551322A (en:Method)
IE (1) IE43897B1 (en:Method)

Also Published As

Publication number Publication date
IE43897L (en) 1976-11-16
DE2622304A1 (de) 1976-12-16
FR2311313A1 (fr) 1976-12-10
GB1551322A (en) 1979-08-30
FR2311313B3 (en:Method) 1980-10-17

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