JPS5748609A - Display device - Google Patents

Display device

Info

Publication number
JPS5748609A
JPS5748609A JP12493180A JP12493180A JPS5748609A JP S5748609 A JPS5748609 A JP S5748609A JP 12493180 A JP12493180 A JP 12493180A JP 12493180 A JP12493180 A JP 12493180A JP S5748609 A JPS5748609 A JP S5748609A
Authority
JP
Japan
Prior art keywords
revolutions
lamp
comparator
output
revolution
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
JP12493180A
Other languages
Japanese (ja)
Inventor
Hirotoshi Tamimoto
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.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg 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 Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP12493180A priority Critical patent/JPS5748609A/en
Publication of JPS5748609A publication Critical patent/JPS5748609A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
    • G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values
    • G01R13/405—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs
    • G01R13/406—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs representing measured value by a dot or a single line

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Measured Values (AREA)

Abstract

PURPOSE:To reduce the number of lamps and to make display of a wide range by comparing the detected physical quantity and reference set values, and displaying one lamp output of plural lamps in plural display modes based on the compared outputs thereof. CONSTITUTION:When a detection signal is applied from a revolution sensor 1 to a number of revolution detecting circuit 2, the circuit 2 supplies the voltage Vin corresponding to the number of revolutions to a comparator 3. The comparator 3 compares the voltages V1-V4 of reference voltage setters 4-1-4-4 and the Vin, and outputs the signals 2-4 which flicker any one of a red lamp 9-1, a yellow lamp 9-2, or a blue lamp 9-3 in correspondence to low revolutions, middle revolutions and high revolutions. When the number of revolution is low and is out of a correct range, a signal is output from the output 1 of the comparator 3 to light the red lamp 9-1. When the number of revolutions is too high, a signal is outputted from the output 5 of the comparator 3 to light the blue lamp 9-3.
JP12493180A 1980-09-08 1980-09-08 Display device Pending JPS5748609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12493180A JPS5748609A (en) 1980-09-08 1980-09-08 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12493180A JPS5748609A (en) 1980-09-08 1980-09-08 Display device

Publications (1)

Publication Number Publication Date
JPS5748609A true JPS5748609A (en) 1982-03-20

Family

ID=14897706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12493180A Pending JPS5748609A (en) 1980-09-08 1980-09-08 Display device

Country Status (1)

Country Link
JP (1) JPS5748609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126874A (en) * 1984-07-16 1986-02-06 Mitsubishi Electric Corp Burn-in device for semiconductor device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877875A (en) * 1972-01-19 1973-10-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877875A (en) * 1972-01-19 1973-10-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126874A (en) * 1984-07-16 1986-02-06 Mitsubishi Electric Corp Burn-in device for semiconductor device

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