JPS56158956A - Crest value detection system - Google Patents

Crest value detection system

Info

Publication number
JPS56158956A
JPS56158956A JP6300980A JP6300980A JPS56158956A JP S56158956 A JPS56158956 A JP S56158956A JP 6300980 A JP6300980 A JP 6300980A JP 6300980 A JP6300980 A JP 6300980A JP S56158956 A JPS56158956 A JP S56158956A
Authority
JP
Japan
Prior art keywords
regions
crest value
equation
range
calculated
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
JP6300980A
Other languages
Japanese (ja)
Inventor
Tokuo Emura
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.)
Nissin Electric Co Ltd
Original Assignee
Nissin Electric Co 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 Nissin Electric Co Ltd filed Critical Nissin Electric Co Ltd
Priority to JP6300980A priority Critical patent/JPS56158956A/en
Publication of JPS56158956A publication Critical patent/JPS56158956A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01R19/04—Measuring peak values or amplitude or envelope of ac or of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE:To obtain the crest value of sine waves in a short time from sampling data having a 90 deg. phase difference by sampling from the regions dividing a 0-pi/2 range to plurality. CONSTITUTION:A crest value I is calculated in the form of depending upon vectors ¦is¦, ¦ic¦ belong to which of the regions divided from a 0-pi/2 range with respect to two data is=IsinPSI, ic=IcosPSI having a 90 deg. time difference. (alpha, beta are the constants determined by the regions). If, for example, the number of division is assumed to be 3 and the range is divided to regions R1, R2, R3, the crest values of the sine waves belong to the regions R1-R2 can be calculated respectively by the equation-1-equation-3. Here, the equation-1 and the equation-3 are simply substituted with ¦is¦, ¦ic¦ and therefore if the two regions are discriminated, the crest value can be calculated. Since this method mecessitates simply using such simple arithmetic circuits, the crest value is obtained in a short time.
JP6300980A 1980-05-12 1980-05-12 Crest value detection system Pending JPS56158956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6300980A JPS56158956A (en) 1980-05-12 1980-05-12 Crest value detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6300980A JPS56158956A (en) 1980-05-12 1980-05-12 Crest value detection system

Publications (1)

Publication Number Publication Date
JPS56158956A true JPS56158956A (en) 1981-12-08

Family

ID=13216883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6300980A Pending JPS56158956A (en) 1980-05-12 1980-05-12 Crest value detection system

Country Status (1)

Country Link
JP (1) JPS56158956A (en)

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