JPS5556278A - Non-linear arithmetic circuit - Google Patents

Non-linear arithmetic circuit

Info

Publication number
JPS5556278A
JPS5556278A JP12849078A JP12849078A JPS5556278A JP S5556278 A JPS5556278 A JP S5556278A JP 12849078 A JP12849078 A JP 12849078A JP 12849078 A JP12849078 A JP 12849078A JP S5556278 A JPS5556278 A JP S5556278A
Authority
JP
Japan
Prior art keywords
k2ei
k1ei
degree
linear arithmetic
arithmetic circuit
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
JP12849078A
Other languages
Japanese (ja)
Inventor
Hiromi Chiba
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12849078A priority Critical patent/JPS5556278A/en
Publication of JPS5556278A publication Critical patent/JPS5556278A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE:To constitute a non-linear arithmetic circuit which is easily adjusted and provides linearization with high approximation. CONSTITUTION:Circuits 2 and 3 outputs k1Ei and + or -k2Ei by receiving input signal Ei and curcuit 4 receives output Ef of multiplier 1 and outputs + or -k3Ef; and Em= + or -k2Ei+ or -k3Ei is obtained by adding 5 and multiplication of Ef=EiEm is performed. With (k3) less than one, addition 6 to k1Ei is done to obtain non-linear arithmetic output EO=k1Ei+ or -k2Ei<2>+ or -k2(+ or -k3)Ei<2> at terminal 8. Therefore, values of coefficients (k1)-(k3) are set adequately and signal Ei equivalent to electromotive force of a thermocouple is inputted so as to lonearize a non-linear error with a high approximation degree by an equation of the 3rd degree. In case of a platinum resistance thermometer bulb, coefficient (k2) is set positive and (k3) is to zero, so that linearization can be attained by an equation of the 2nd degree.
JP12849078A 1978-10-20 1978-10-20 Non-linear arithmetic circuit Pending JPS5556278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12849078A JPS5556278A (en) 1978-10-20 1978-10-20 Non-linear arithmetic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12849078A JPS5556278A (en) 1978-10-20 1978-10-20 Non-linear arithmetic circuit

Publications (1)

Publication Number Publication Date
JPS5556278A true JPS5556278A (en) 1980-04-24

Family

ID=14986031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12849078A Pending JPS5556278A (en) 1978-10-20 1978-10-20 Non-linear arithmetic circuit

Country Status (1)

Country Link
JP (1) JPS5556278A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01233324A (en) * 1988-03-14 1989-09-19 Hitachi Metals Ltd Mass flowmeter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01233324A (en) * 1988-03-14 1989-09-19 Hitachi Metals Ltd Mass flowmeter

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