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JPS56156004A - Log sweep generator - Google Patents

Log sweep generator

Info

Publication number
JPS56156004A
JPS56156004A JP5976980A JP5976980A JPS56156004A JP S56156004 A JPS56156004 A JP S56156004A JP 5976980 A JP5976980 A JP 5976980A JP 5976980 A JP5976980 A JP 5976980A JP S56156004 A JPS56156004 A JP S56156004A
Authority
JP
Japan
Prior art keywords
counter
multiplier
output
sweep generator
counting value
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.)
Pending
Application number
JP5976980A
Other languages
Japanese (ja)
Inventor
Katsuhiko Yamanaka
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP5976980A priority Critical patent/JPS56156004A/en
Publication of JPS56156004A publication Critical patent/JPS56156004A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H03B23/00—Generation of oscillations periodically swept over a predetermined frequency range

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To obtain a log sweep generator having high precision, by applying a certain frequency to the 1st and 2nd counters bia a rate multiplier and at the same time setting the counting value of the 2nd counter at the set value of the rate multiplier. CONSTITUTION:The output f1 of a rate multiplier RM to which a certain frequency f0 is applied from an oscillator GE is supplied to the counters C1 and C2. At the same time, the counting value (m) of counter C2 is set at the set value of multiplier RM. Thus the output frequency of multiplier RM increases in a way of exponent and function. The output f1 is counted by the counter C1, and a triangular wave is obtained by giving a D/A conversion to the counting value of counter C1. This triangular wave is shaped by a nonlinear circuit NL to be delivered in the form of a sine wave signal.
JP5976980A 1980-05-06 1980-05-06 Log sweep generator Pending JPS56156004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5976980A JPS56156004A (en) 1980-05-06 1980-05-06 Log sweep generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5976980A JPS56156004A (en) 1980-05-06 1980-05-06 Log sweep generator

Publications (1)

Publication Number Publication Date
JPS56156004A true JPS56156004A (en) 1981-12-02

Family

ID=13122815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5976980A Pending JPS56156004A (en) 1980-05-06 1980-05-06 Log sweep generator

Country Status (1)

Country Link
JP (1) JPS56156004A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152106A (en) * 1984-01-20 1985-08-10 Akashi Seisakusho Co Ltd Sweep oscillator
US8517639B2 (en) 2005-10-14 2013-08-27 Tidal Generation Limited Installation of underwater anchorages

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110750A (en) * 1974-07-16 1976-01-28 Mitsubishi Electric Corp KINJISHINGOHATSUSEISOCHI
JPS5128373A (en) * 1974-09-01 1976-03-10 Tooru Fukunaga KUTSUKYOKUJIZAINATOCHU
JPS5136860A (en) * 1974-09-24 1976-03-27 Takeda Riken Ind Co Ltd

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110750A (en) * 1974-07-16 1976-01-28 Mitsubishi Electric Corp KINJISHINGOHATSUSEISOCHI
JPS5128373A (en) * 1974-09-01 1976-03-10 Tooru Fukunaga KUTSUKYOKUJIZAINATOCHU
JPS5136860A (en) * 1974-09-24 1976-03-27 Takeda Riken Ind Co Ltd

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152106A (en) * 1984-01-20 1985-08-10 Akashi Seisakusho Co Ltd Sweep oscillator
US8517639B2 (en) 2005-10-14 2013-08-27 Tidal Generation Limited Installation of underwater anchorages

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