JPS5674658A - Waveform recorder - Google Patents

Waveform recorder

Info

Publication number
JPS5674658A
JPS5674658A JP15181679A JP15181679A JPS5674658A JP S5674658 A JPS5674658 A JP S5674658A JP 15181679 A JP15181679 A JP 15181679A JP 15181679 A JP15181679 A JP 15181679A JP S5674658 A JPS5674658 A JP S5674658A
Authority
JP
Japan
Prior art keywords
waveform
memory
counter
signal
inputted
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
JP15181679A
Other languages
Japanese (ja)
Inventor
Shigeo Sakai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15181679A priority Critical patent/JPS5674658A/en
Publication of JPS5674658A publication Critical patent/JPS5674658A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To record intermittent waveforms with high accuracy by alternately reading out memory contents and the counting time width of a counter.
CONSTITUTION: When a waveform W1 is inputted to an input terminal 1, a waveform detector 2 outputs a waveform detecting signal (a) at the instant when the waveform W1 exceeds a threshold level TH, thereby driving a write controller 4 and giving a write signal to a memory 5. In an A/D converter 3, the waveforms are converted to digital signals irrespective of the operation of the detector 2, and the waveform W1 is stored in the form of a digital signal into the memory 5. The memory 5 ends writing TM second after, and applies a start signal to a counter 8. The counter 8 begins to count the time, and at the instant when the next waveform W2 is inputted, it stops counting; at the same time, the controller 4 applies a storage command to a memory 6. Namely, only the waveform is stored in the memory and the waveform intervals are counted and held in the counter.
COPYRIGHT: (C)1981,JPO&Japio
JP15181679A 1979-11-22 1979-11-22 Waveform recorder Pending JPS5674658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15181679A JPS5674658A (en) 1979-11-22 1979-11-22 Waveform recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15181679A JPS5674658A (en) 1979-11-22 1979-11-22 Waveform recorder

Publications (1)

Publication Number Publication Date
JPS5674658A true JPS5674658A (en) 1981-06-20

Family

ID=15526932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15181679A Pending JPS5674658A (en) 1979-11-22 1979-11-22 Waveform recorder

Country Status (1)

Country Link
JP (1) JPS5674658A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586274U (en) * 1981-07-03 1983-01-14 北陸電力株式会社 Multiple lightning waveform storage device
JPS60214266A (en) * 1984-04-11 1985-10-26 Sony Tektronix Corp Signal storage device
JPS61114170A (en) * 1984-11-09 1986-05-31 Kansai Electric Power Co Inc:The Measuring device for lightning surge voltage
JPH02128163A (en) * 1988-11-09 1990-05-16 Yokogawa Electric Corp Waveform display apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586274U (en) * 1981-07-03 1983-01-14 北陸電力株式会社 Multiple lightning waveform storage device
JPS60214266A (en) * 1984-04-11 1985-10-26 Sony Tektronix Corp Signal storage device
JPH0135303B2 (en) * 1984-04-11 1989-07-25 Sony Tektronix Corp
JPS61114170A (en) * 1984-11-09 1986-05-31 Kansai Electric Power Co Inc:The Measuring device for lightning surge voltage
JPH02128163A (en) * 1988-11-09 1990-05-16 Yokogawa Electric Corp Waveform display apparatus

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