JPS5537936A - Object discrimination device - Google Patents

Object discrimination device

Info

Publication number
JPS5537936A
JPS5537936A JP11087078A JP11087078A JPS5537936A JP S5537936 A JPS5537936 A JP S5537936A JP 11087078 A JP11087078 A JP 11087078A JP 11087078 A JP11087078 A JP 11087078A JP S5537936 A JPS5537936 A JP S5537936A
Authority
JP
Japan
Prior art keywords
signal
phase
resonance circuit
inputted
coil
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
JP11087078A
Other languages
Japanese (ja)
Other versions
JPS6134628B2 (en
Inventor
Ryosuke Sato
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 Signal Co Ltd
Original Assignee
Nippon Signal 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 Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP11087078A priority Critical patent/JPS5537936A/en
Publication of JPS5537936A publication Critical patent/JPS5537936A/en
Publication of JPS6134628B2 publication Critical patent/JPS6134628B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To lighten the limit of voltage directly induced to the receiving coil from the transmitting coil to simplify the circuit and make easy the receipt of the response signal from the resonance circuit and obtain the object discrimination device by using the phase equivalent device and the detector. CONSTITUTION:FM signal from the signal generator OSC is amplified 1 and supplied to the transmission coil Ls and when the resonance circuit approaches thereto, it is excited by the electromagnetic induction. The excited current of the resonance circuit further induces voltage to the receiver coil Lr. This induced signal separates the noise by PBF1, and thereafter the amplitude is limited by the limitter LiM2 and inputted to the phase detector PD. The receiver signal inputted into PD is taken out of the radio wave transformer CT. The phase of the signal in a fixed phase relationship with the transmitted signal is standardized the displacement of the phase due to SC, BPF1 or the like is compensated by the phase equivalent device EQ. The output signal of this EQ is inputted to the phase detector PD through the limitter LiM1, hence the receiver signal is phase detected. This signal is amplified 2, driving the relay RY, to obtain the response signal of the resonance circuit.
JP11087078A 1978-09-08 1978-09-08 Object discrimination device Granted JPS5537936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11087078A JPS5537936A (en) 1978-09-08 1978-09-08 Object discrimination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11087078A JPS5537936A (en) 1978-09-08 1978-09-08 Object discrimination device

Publications (2)

Publication Number Publication Date
JPS5537936A true JPS5537936A (en) 1980-03-17
JPS6134628B2 JPS6134628B2 (en) 1986-08-08

Family

ID=14546775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11087078A Granted JPS5537936A (en) 1978-09-08 1978-09-08 Object discrimination device

Country Status (1)

Country Link
JP (1) JPS5537936A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02265613A (en) * 1989-04-03 1990-10-30 Toto Ltd High gradient magnetic separator
JPWO2007029435A1 (en) * 2005-09-02 2009-03-12 日本電気株式会社 Transmission method, interface circuit, semiconductor device, semiconductor package, semiconductor module, and memory module
JP2018020102A (en) * 2016-07-04 2018-02-08 ヴェー ウント ハー デンタルヴェルク ビュールモース ゲーエムベーハー Medical or dental treatment device and medical or dental treatment tool for such a treatment device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02265613A (en) * 1989-04-03 1990-10-30 Toto Ltd High gradient magnetic separator
JPWO2007029435A1 (en) * 2005-09-02 2009-03-12 日本電気株式会社 Transmission method, interface circuit, semiconductor device, semiconductor package, semiconductor module, and memory module
JP4784773B2 (en) * 2005-09-02 2011-10-05 日本電気株式会社 Transmission method, interface circuit, semiconductor device, semiconductor package, semiconductor module, and memory module
US8190086B2 (en) 2005-09-02 2012-05-29 Nec Corporation Transmission method, interface circuit, semiconductor device, semiconductor package, semiconductor module and memory module
JP2018020102A (en) * 2016-07-04 2018-02-08 ヴェー ウント ハー デンタルヴェルク ビュールモース ゲーエムベーハー Medical or dental treatment device and medical or dental treatment tool for such a treatment device

Also Published As

Publication number Publication date
JPS6134628B2 (en) 1986-08-08

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