JPS562575A - Proximity detector - Google Patents

Proximity detector

Info

Publication number
JPS562575A
JPS562575A JP7752879A JP7752879A JPS562575A JP S562575 A JPS562575 A JP S562575A JP 7752879 A JP7752879 A JP 7752879A JP 7752879 A JP7752879 A JP 7752879A JP S562575 A JPS562575 A JP S562575A
Authority
JP
Japan
Prior art keywords
circuit
oscillation
transistor
amplitude
transformer
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
JP7752879A
Other languages
English (en)
Inventor
Takeo Ueda
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7752879A priority Critical patent/JPS562575A/ja
Publication of JPS562575A publication Critical patent/JPS562575A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
JP7752879A 1979-06-21 1979-06-21 Proximity detector Pending JPS562575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7752879A JPS562575A (en) 1979-06-21 1979-06-21 Proximity detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7752879A JPS562575A (en) 1979-06-21 1979-06-21 Proximity detector

Publications (1)

Publication Number Publication Date
JPS562575A true JPS562575A (en) 1981-01-12

Family

ID=13636470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7752879A Pending JPS562575A (en) 1979-06-21 1979-06-21 Proximity detector

Country Status (1)

Country Link
JP (1) JPS562575A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121988U (ja) * 1984-07-16 1986-02-08 本田技研工業株式会社 車両用物体検知装置
US4644298A (en) * 1984-07-27 1987-02-17 Omron Tateisi Electronics Co. Proximity switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121988U (ja) * 1984-07-16 1986-02-08 本田技研工業株式会社 車両用物体検知装置
US4644298A (en) * 1984-07-27 1987-02-17 Omron Tateisi Electronics Co. Proximity switch

Similar Documents

Publication Publication Date Title
JPS5610792A (en) Method and circuit for driving ultrasonic-wave converter
JPS5612502A (en) Feedback amplification type vortex flow range finder
JPS545524A (en) Flow rate control oscillator circuit for shopper control
JPS562575A (en) Proximity detector
JPS55158705A (en) Low-noise oscillator
JPS5353949A (en) Frequency discriminator
JPS54111070A (en) Phase controlling circuit
JPS5775568A (en) Ringing converter
JPS55114006A (en) Synchronous type crystal oscillator
JPS5654378A (en) Metal piece passage detector
JPS5456753A (en) Oscillator circuit device
JPS5632832A (en) Atomic oscillator
JPS5518183A (en) Crystal oscillator
JPS5344070A (en) Measuring method for constant of mechanical oscillator
JPS55158575A (en) Metal detector
JPS5673957A (en) Electronic ring trip circuit
JPS5373947A (en) Oscillator circuit
JPS5637807A (en) Magnetic recording circuit device
JPS52123155A (en) Voltage control oscillation circuit
JPS57192104A (en) Voltage controlled quartz oscillator
JPS52146152A (en) Oscillator
JPS5619207A (en) Tuning fork oscillator having steady amplitude
JPS5557155A (en) Resonant frequency measuring device
JPS5338380A (en) Peak detecting circuit
JPS551747A (en) Crystal oscillator circuit