JPS5682472A - Solid discrimination device - Google Patents

Solid discrimination device

Info

Publication number
JPS5682472A
JPS5682472A JP15921679A JP15921679A JPS5682472A JP S5682472 A JPS5682472 A JP S5682472A JP 15921679 A JP15921679 A JP 15921679A JP 15921679 A JP15921679 A JP 15921679A JP S5682472 A JPS5682472 A JP S5682472A
Authority
JP
Japan
Prior art keywords
resonance element
sensitivity
resonant
signal
code
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
JP15921679A
Other languages
Japanese (ja)
Inventor
Toshio Sudo
Shuji Suzuki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15921679A priority Critical patent/JPS5682472A/en
Publication of JPS5682472A publication Critical patent/JPS5682472A/en
Pending 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
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors

Abstract

PURPOSE:To exactly discriminates irrespective of sensitivity of a resonant, by constituting a resonant group of a response device for providing a code, of a code forming resonance element and a reference resonance element, etc. CONSTITUTION:When an interrogation signal from the fixed interrogation device 10 is received, the response device 20 equipped on a car, etc. generates an intrinsic code signal by combination of the frequency signals which are different depending on the resonant group 22. This resonant group 22 is constituted of the resonance elements having frequencies f1, f2..., and the reference resonance element having frequency fM, which is able to freely adjust the output level by a level output lower than these elements, or the series variable resistor RS. Accordingly, in case when the device 10 receives a code signal, and sweeps and decodes it, the threshold level, etc. are set in accordance with the reference resonance element signal, and a solid body is discriminated exactly, irrespective of deterioration of the sensitivity of a resonance element due to temperature variation, time aging, etc., or variations of the sensitivity between the resonance element, etc.
JP15921679A 1979-12-10 1979-12-10 Solid discrimination device Pending JPS5682472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15921679A JPS5682472A (en) 1979-12-10 1979-12-10 Solid discrimination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15921679A JPS5682472A (en) 1979-12-10 1979-12-10 Solid discrimination device

Publications (1)

Publication Number Publication Date
JPS5682472A true JPS5682472A (en) 1981-07-06

Family

ID=15688861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15921679A Pending JPS5682472A (en) 1979-12-10 1979-12-10 Solid discrimination device

Country Status (1)

Country Link
JP (1) JPS5682472A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0639321A (en) * 1992-04-28 1994-02-15 Morikawa Sangyo Kk Method and device for bonding of object using robot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0639321A (en) * 1992-04-28 1994-02-15 Morikawa Sangyo Kk Method and device for bonding of object using robot

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