GB996311A - Improvements in or relating to systems for measuring distance by electromagnetic waves - Google Patents

Improvements in or relating to systems for measuring distance by electromagnetic waves

Info

Publication number
GB996311A
GB996311A GB29723/63A GB2972363A GB996311A GB 996311 A GB996311 A GB 996311A GB 29723/63 A GB29723/63 A GB 29723/63A GB 2972363 A GB2972363 A GB 2972363A GB 996311 A GB996311 A GB 996311A
Authority
GB
United Kingdom
Prior art keywords
frequency
station
crystal
stations
oscillator
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
GB29723/63A
Other languages
English (en)
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.)
Siemens Schweiz AG
Albiswerk Zuerich AG
Original Assignee
Siemens Albis AG
Albiswerk Zuerich AG
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 Siemens Albis AG, Albiswerk Zuerich AG filed Critical Siemens Albis AG
Publication of GB996311A publication Critical patent/GB996311A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/84—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted for distance determination by phase measurement
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0048—Circuit elements of oscillators including measures to switch the frequency band, e.g. by harmonic selection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0056—Circuit elements of oscillators including a diode used for switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/025—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements
    • H03B2201/0258—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements the means comprising a diode

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Laminated Bodies (AREA)
GB29723/63A 1962-07-27 1963-07-26 Improvements in or relating to systems for measuring distance by electromagnetic waves Expired GB996311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH901762A CH395211A (de) 1962-07-27 1962-07-27 Einrichtung zur Distanzmessung

Publications (1)

Publication Number Publication Date
GB996311A true GB996311A (en) 1965-06-23

Family

ID=4347413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29723/63A Expired GB996311A (en) 1962-07-27 1963-07-26 Improvements in or relating to systems for measuring distance by electromagnetic waves

Country Status (7)

Country Link
US (1) US3243726A (US07368563-20080506-C00056.png)
CH (1) CH395211A (US07368563-20080506-C00056.png)
DE (1) DE1214279B (US07368563-20080506-C00056.png)
DK (1) DK106978C (US07368563-20080506-C00056.png)
GB (1) GB996311A (US07368563-20080506-C00056.png)
NL (2) NL142240B (US07368563-20080506-C00056.png)
NO (1) NO119091B (US07368563-20080506-C00056.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1117343A (en) * 1966-01-28 1968-06-19 Marconi Co Ltd Improvements in or relating to piezo-electric crystal circuit arrangements
FR2283581A1 (fr) * 1974-08-30 1976-03-26 Thomson Csf Oscillateur multifrequences a quartz
US20240023491A1 (en) * 2021-08-10 2024-01-25 Kondala Rao Yadlapalli Enhanced plant growth, yield, chlorophyll content and nutrition value through high frequency impulse waves

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1984424A (en) * 1928-06-23 1934-12-18 Telefunken Gmbh Variably tuned piezo-electric resonator
DE1005579B (de) * 1940-11-06 1957-04-04 Loewe Opta Ag Entfernungsmesseinrichtung nach dem Relaisprinzip
DE884831C (de) * 1944-01-08 1953-07-30 Lorenz C Ag Verfahren zur gegenseitigen Entfernungsmessung zwischen zwei Stationen auf drahtlosem Wege
GB836782A (en) * 1955-06-08 1960-06-09 British Telecomm Res Ltd Improvements in and relating to crystal controlled oscillators
US3054967A (en) * 1958-12-31 1962-09-18 Ibm Free-running pulse generator for producing steep edge output pulses
DE1090727B (de) * 1959-08-22 1960-10-13 Deutsche Bundesbahn Frequenzumschaltung quarzgesteuerter Oszillatoren mittels Halbleiterdioden
US3068427A (en) * 1960-02-11 1962-12-11 Motorola Inc Frequency modulator including voltage sensitive capacitors for changing the effective capacitance and inductance of an oscillator circuit
DE1105481B (de) * 1960-03-11 1961-04-27 Deutsche Bundesbahn Schaltanordnung zur Frequenz-umschaltung mehrerer Quarzoszillatoren mittels Halbleiterdioden

Also Published As

Publication number Publication date
NO119091B (US07368563-20080506-C00056.png) 1970-03-23
NL295717A (US07368563-20080506-C00056.png)
NL142240B (nl) 1974-05-15
DE1214279B (de) 1966-04-14
CH395211A (de) 1965-07-15
US3243726A (en) 1966-03-29
DK106978C (da) 1967-04-10

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