JPS53104258A - Object detector - Google Patents

Object detector

Info

Publication number
JPS53104258A
JPS53104258A JP1906977A JP1906977A JPS53104258A JP S53104258 A JPS53104258 A JP S53104258A JP 1906977 A JP1906977 A JP 1906977A JP 1906977 A JP1906977 A JP 1906977A JP S53104258 A JPS53104258 A JP S53104258A
Authority
JP
Japan
Prior art keywords
pll circuit
signal
reception
object detector
frequencied
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
JP1906977A
Other languages
Japanese (ja)
Inventor
Hideaki Nakamura
Kenji Nishikido
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP1906977A priority Critical patent/JPS53104258A/en
Publication of JPS53104258A publication Critical patent/JPS53104258A/en
Pending legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To eliminate the effect of drift, always match transmission and reception frequencied, sharpen selection characteristics and detect objects by using the signal generated in a PLL circuit as ultrasonic transmission signal and locking the PLL circuit with the frequency of the reception signal thereof.
COPYRIGHT: (C)1978,JPO&Japio
JP1906977A 1977-02-24 1977-02-24 Object detector Pending JPS53104258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1906977A JPS53104258A (en) 1977-02-24 1977-02-24 Object detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1906977A JPS53104258A (en) 1977-02-24 1977-02-24 Object detector

Publications (1)

Publication Number Publication Date
JPS53104258A true JPS53104258A (en) 1978-09-11

Family

ID=11989134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1906977A Pending JPS53104258A (en) 1977-02-24 1977-02-24 Object detector

Country Status (1)

Country Link
JP (1) JPS53104258A (en)

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