JPS645130A - Magnetic field standardizing device by circuit built-in type loop antenna - Google Patents

Magnetic field standardizing device by circuit built-in type loop antenna

Info

Publication number
JPS645130A
JPS645130A JP62158843A JP15884387A JPS645130A JP S645130 A JPS645130 A JP S645130A JP 62158843 A JP62158843 A JP 62158843A JP 15884387 A JP15884387 A JP 15884387A JP S645130 A JPS645130 A JP S645130A
Authority
JP
Japan
Prior art keywords
loop antenna
magnetic field
amplifier
accommodated
power supply
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
JP62158843A
Other languages
Japanese (ja)
Other versions
JPH0562956B2 (en
Inventor
Tatsuichi Kawana
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.)
Communications Research Laboratory
Original Assignee
Communications Research Laboratory
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 Communications Research Laboratory filed Critical Communications Research Laboratory
Priority to JP62158843A priority Critical patent/JPS645130A/en
Publication of JPS645130A publication Critical patent/JPS645130A/en
Publication of JPH0562956B2 publication Critical patent/JPH0562956B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Magnetic Variables (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To decide the standard value of a high frequency magnetic field strength accurately by eliminating the disturbance in using an external circuit and a metallic cable. CONSTITUTION:A signal generator/amplifier, an antenna currentpoptical conversion section/ a power supply or the like are accommodated in the inside of the case of a transmission loop antenna 1 and a detection circuit, an amplifier, an amplifier output voltage/optical conversion section and a power supply or the like are accommodated in the inside of the case of a reception loop antenna 2 and a transmission loop antenna current and a reception loop antenna induced electromotive force are moitored by a monitor section 3 through nonmetal made optical fiber cables 4, 5. Since the effect of the cable (metal made) in determining the magnetic field intensity is eliminated in this way, a magentic field offering the accurate standard is obtained.
JP62158843A 1987-06-27 1987-06-27 Magnetic field standardizing device by circuit built-in type loop antenna Granted JPS645130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62158843A JPS645130A (en) 1987-06-27 1987-06-27 Magnetic field standardizing device by circuit built-in type loop antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62158843A JPS645130A (en) 1987-06-27 1987-06-27 Magnetic field standardizing device by circuit built-in type loop antenna

Publications (2)

Publication Number Publication Date
JPS645130A true JPS645130A (en) 1989-01-10
JPH0562956B2 JPH0562956B2 (en) 1993-09-09

Family

ID=15680620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62158843A Granted JPS645130A (en) 1987-06-27 1987-06-27 Magnetic field standardizing device by circuit built-in type loop antenna

Country Status (1)

Country Link
JP (1) JPS645130A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2338373A2 (en) 2001-12-28 2011-06-29 Citizen Holdings Co., Ltd. Decorative article having white coating and method for manufacture thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2338373A2 (en) 2001-12-28 2011-06-29 Citizen Holdings Co., Ltd. Decorative article having white coating and method for manufacture thereof

Also Published As

Publication number Publication date
JPH0562956B2 (en) 1993-09-09

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Legal Events

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EXPY Cancellation because of completion of term