JPS57211564A - Discriminating circuit for condition - Google Patents

Discriminating circuit for condition

Info

Publication number
JPS57211564A
JPS57211564A JP56097247A JP9724781A JPS57211564A JP S57211564 A JPS57211564 A JP S57211564A JP 56097247 A JP56097247 A JP 56097247A JP 9724781 A JP9724781 A JP 9724781A JP S57211564 A JPS57211564 A JP S57211564A
Authority
JP
Japan
Prior art keywords
input part
switch
amplifier
contacts
output voltage
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
JP56097247A
Other languages
Japanese (ja)
Other versions
JPH0314142B2 (en
Inventor
Yoshio Yoshida
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 Electric Corp
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 Electric Corp, Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Electric Corp
Priority to JP56097247A priority Critical patent/JPS57211564A/en
Publication of JPS57211564A publication Critical patent/JPS57211564A/en
Publication of JPH0314142B2 publication Critical patent/JPH0314142B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/08—Circuits for altering the measuring range
    • G01R15/09—Autoranging circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE:To enable discriminating of an ON and an OFF state of an input part, and a range information selected by an input part, by selecting a plural number of series resistances, mounted to a return circuit of an operational amplifier, by means of 2 sets of switches. CONSTITUTION:Series resistors R2-R5 are located to a return circuit of an operational amplifier A2 whereto a constant voltage is applied via a resistor R1. The resistors R2-R5 are selected corresponding to switching connection of contacts 3-0 by means of an ON and OFF swtiche S2 for a switch S3 to change an output voltage of the amplifier A2. Meanwhile, the switch S3 turns ON and OFF corresponding to ON and OFF of an input part for a measuring part and the like, and the switch S2 is connected to a contact 0 at an OFF time of an input part, and is coupled to contacts 1-3 in conformity with a range-switching of the input part. This permits the reliable discrimination of the ON and OFF state of the input part and the range information of the input part by means of the output voltage of the amplifier A2.
JP56097247A 1981-06-23 1981-06-23 Discriminating circuit for condition Granted JPS57211564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56097247A JPS57211564A (en) 1981-06-23 1981-06-23 Discriminating circuit for condition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56097247A JPS57211564A (en) 1981-06-23 1981-06-23 Discriminating circuit for condition

Publications (2)

Publication Number Publication Date
JPS57211564A true JPS57211564A (en) 1982-12-25
JPH0314142B2 JPH0314142B2 (en) 1991-02-26

Family

ID=14187247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56097247A Granted JPS57211564A (en) 1981-06-23 1981-06-23 Discriminating circuit for condition

Country Status (1)

Country Link
JP (1) JPS57211564A (en)

Also Published As

Publication number Publication date
JPH0314142B2 (en) 1991-02-26

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