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JPS57125357A - Device for detecting electromagnetic wave - Google Patents

Device for detecting electromagnetic wave

Info

Publication number
JPS57125357A
JPS57125357A JP1182081A JP1182081A JPS57125357A JP S57125357 A JPS57125357 A JP S57125357A JP 1182081 A JP1182081 A JP 1182081A JP 1182081 A JP1182081 A JP 1182081A JP S57125357 A JPS57125357 A JP S57125357A
Authority
JP
Japan
Prior art keywords
detecting circuit
josephson
electromagnetic wave
counter
current
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
JP1182081A
Other languages
Japanese (ja)
Inventor
Minoru Ito
Toshio Kasai
Takahiro Inamura
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1182081A priority Critical patent/JPS57125357A/en
Publication of JPS57125357A publication Critical patent/JPS57125357A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Superconductor Devices And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To eliminate an influence of disturbances such as earth magnetism and to measure electromagnetic waves with high accuracy by a device wherein based on a Josephson current passing through a Josephson element upon receiving the electromagnetic waves, the chapelet step appeared in the current is detected in a digital manner. CONSTITUTION:Sweeping voltage from a sweeping voltage generator 3 is applied to a Josephson element 2 receiving an electromagnetic wave 1. Based on a Josephson current passing through the element 2, the chapelt step appeared in the current is detected in a digital manner by a detecting circuit 4. Output from the detecting circuit 4 is counted by a counter 5. Between the detecting circuit 4 and the counter 5 is interposed a gate circuit 5 which is controlled by a gate signal sent from a gate signal generating circuit 9. With this arrangement, the output from the detecting circuit 4 is counted by the counter 5, thereby to obtain a signal representing intensity of the received electromagnetic wave.
JP1182081A 1981-01-28 1981-01-28 Device for detecting electromagnetic wave Pending JPS57125357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1182081A JPS57125357A (en) 1981-01-28 1981-01-28 Device for detecting electromagnetic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1182081A JPS57125357A (en) 1981-01-28 1981-01-28 Device for detecting electromagnetic wave

Publications (1)

Publication Number Publication Date
JPS57125357A true JPS57125357A (en) 1982-08-04

Family

ID=11788416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1182081A Pending JPS57125357A (en) 1981-01-28 1981-01-28 Device for detecting electromagnetic wave

Country Status (1)

Country Link
JP (1) JPS57125357A (en)

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