JPS5612566A - Ultrasonic pulse switch - Google Patents

Ultrasonic pulse switch

Info

Publication number
JPS5612566A
JPS5612566A JP8851579A JP8851579A JPS5612566A JP S5612566 A JPS5612566 A JP S5612566A JP 8851579 A JP8851579 A JP 8851579A JP 8851579 A JP8851579 A JP 8851579A JP S5612566 A JPS5612566 A JP S5612566A
Authority
JP
Japan
Prior art keywords
circuit
amplifier circuit
signal
ultrasonic wave
increased
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
JP8851579A
Other languages
Japanese (ja)
Inventor
Susumu Katayama
Hironobu Inoue
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8851579A priority Critical patent/JPS5612566A/en
Publication of JPS5612566A publication Critical patent/JPS5612566A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/529—Gain of receiver varied automatically during pulse-recurrence period

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To prevent the production of a false information due to a reflected ultrasonic wave generated from the atmospheric layer interface by using an amplifier circuit the amplification degree of which is increased as time elapses from the transmission start time. CONSTITUTION:The reflected ultrasonic wave is received by the receiving resonator 6, and the output is fed to the signal processing circuit 9 through the amplifier circuit 7 and the detection pulse amplifier circuit 8. The signal processing circuit 9 contains a gate circuit and a counting circuit, and drives the output circuit 10 when a signal is given to the detecting gate. The amplifier circuit 11 the amplification degree of which is increased as time elapses from the transmission start time by a transmission time control pulse of the pulse generator 2 is used, and the received signal is amplified to input itself to the detection pulse amplifier circuit 8.
JP8851579A 1979-07-11 1979-07-11 Ultrasonic pulse switch Pending JPS5612566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8851579A JPS5612566A (en) 1979-07-11 1979-07-11 Ultrasonic pulse switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8851579A JPS5612566A (en) 1979-07-11 1979-07-11 Ultrasonic pulse switch

Publications (1)

Publication Number Publication Date
JPS5612566A true JPS5612566A (en) 1981-02-06

Family

ID=13944956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8851579A Pending JPS5612566A (en) 1979-07-11 1979-07-11 Ultrasonic pulse switch

Country Status (1)

Country Link
JP (1) JPS5612566A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51139370A (en) * 1975-05-27 1976-12-01 Omron Tateisi Electronics Co Reflection-type ultrasonic object detector
JPS5249738A (en) * 1975-10-16 1977-04-21 Western Electric Co Device for patching memory

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51139370A (en) * 1975-05-27 1976-12-01 Omron Tateisi Electronics Co Reflection-type ultrasonic object detector
JPS5249738A (en) * 1975-10-16 1977-04-21 Western Electric Co Device for patching memory

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