JPS57125356A - Interval averaging circuit - Google Patents

Interval averaging circuit

Info

Publication number
JPS57125356A
JPS57125356A JP1050681A JP1050681A JPS57125356A JP S57125356 A JPS57125356 A JP S57125356A JP 1050681 A JP1050681 A JP 1050681A JP 1050681 A JP1050681 A JP 1050681A JP S57125356 A JPS57125356 A JP S57125356A
Authority
JP
Japan
Prior art keywords
sample holding
holding circuit
amplifier
output
input terminal
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.)
Granted
Application number
JP1050681A
Other languages
Japanese (ja)
Other versions
JPH0113043B2 (en
Inventor
Kenichi Abiko
Yoshiteru Kanefuji
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.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard 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 Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Priority to JP1050681A priority Critical patent/JPS57125356A/en
Publication of JPS57125356A publication Critical patent/JPS57125356A/en
Publication of JPH0113043B2 publication Critical patent/JPH0113043B2/ja
Granted 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
    • G01R19/02—Measuring effective values, i.e. root-mean-square values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE:To permit to determine the mean value of a DC signal including superimposed ripples in a moment by a construction wherein a sample holding circuit adapted to sample output from an integrator in an interval averaging circuit comprises two units of sample holding circuits serially connected to each other. CONSTITUTION:An input terminal 1 is connected via a resistor R1 to an inverted input terminal of an amplifier U1 having an integrating capacitor C1. Output of thus arranged integrator is connected via a switch S1 to a first sample holding circuit which comprises a capacitor C3 and an amplifier U3. Output of the first sample holding circuit is connected via a switch S3 to a second sample holding circuit which comprises a capacitor C5 and an amplifier U5. Output of the second sample holding circuit is connected to an inverted input terminal of the amplifier U1. The switches S1 and S2 are operated to have respective ON intervals t1 and t2 different from each other, so that a feedback loop is not formed and hence the accurate interval averaging can be performed even in the region of high frequency.
JP1050681A 1981-01-27 1981-01-27 Interval averaging circuit Granted JPS57125356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1050681A JPS57125356A (en) 1981-01-27 1981-01-27 Interval averaging circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1050681A JPS57125356A (en) 1981-01-27 1981-01-27 Interval averaging circuit

Publications (2)

Publication Number Publication Date
JPS57125356A true JPS57125356A (en) 1982-08-04
JPH0113043B2 JPH0113043B2 (en) 1989-03-03

Family

ID=11752088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1050681A Granted JPS57125356A (en) 1981-01-27 1981-01-27 Interval averaging circuit

Country Status (1)

Country Link
JP (1) JPS57125356A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104074U (en) * 1982-12-28 1984-07-13 横河電機株式会社 RMS conversion circuit
JPS62193412A (en) * 1986-02-20 1987-08-25 Yokogawa Electric Corp Signal generating circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4572536B2 (en) * 2003-12-25 2010-11-04 横河電機株式会社 Sampling type measuring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104074U (en) * 1982-12-28 1984-07-13 横河電機株式会社 RMS conversion circuit
JPS62193412A (en) * 1986-02-20 1987-08-25 Yokogawa Electric Corp Signal generating circuit

Also Published As

Publication number Publication date
JPH0113043B2 (en) 1989-03-03

Similar Documents

Publication Publication Date Title
GB2019151A (en) Improvements in sampled analog filters
JPS57125356A (en) Interval averaging circuit
JPS5672510A (en) Muting circuit
JPS5648186A (en) Photodetector
JPS558656A (en) Sample hold circuit
JPS57201308A (en) Frequency demodulating circuit
JPS56166613A (en) Voltage to current converting circuit
JPS5717207A (en) Amplifying circuit
JPS57212826A (en) Signal switching circuit
JPS54118149A (en) Comparator circuit
JPS5453847A (en) Filter unit
JPS5586215A (en) Doubling circuit
JPS6464576A (en) Mechanical resonance cancelling system
JPS5338380A (en) Peak detecting circuit
JPS5568729A (en) Input circuit with input level decision
JPS56160611A (en) Analog quantity indicator
JPS5696307A (en) Constant-current circuit
JPS5736363A (en) Integrating circuit
JPS5566131A (en) Integrated circuit
JPS54161874A (en) Pulse duration modulator circuit
JPS5731236A (en) Frequency converting and amplifying circuit
JPS57121351A (en) Receiving device for time series signal
JPS5783829A (en) Reference voltage generating circuit
JPS5459858A (en) Analog arithmetic unit
JPS5482576A (en) Pulse frequency modulation amplifier