JPS5494379A - Measuring apparatus for wave transmitter/receiver - Google Patents

Measuring apparatus for wave transmitter/receiver

Info

Publication number
JPS5494379A
JPS5494379A JP128578A JP128578A JPS5494379A JP S5494379 A JPS5494379 A JP S5494379A JP 128578 A JP128578 A JP 128578A JP 128578 A JP128578 A JP 128578A JP S5494379 A JPS5494379 A JP S5494379A
Authority
JP
Japan
Prior art keywords
receiver
wave
transmitter
circuit
wave transmitter
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
JP128578A
Other languages
Japanese (ja)
Other versions
JPS6315800B2 (en
Inventor
Yoshitada Tominaga
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP128578A priority Critical patent/JPS5494379A/en
Publication of JPS5494379A publication Critical patent/JPS5494379A/en
Publication of JPS6315800B2 publication Critical patent/JPS6315800B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE: To increase the operating efficiency of a test tank by measuring plural wave transmitter/receiver sets for ultrasonic apparatus in one test tank, by controlling the wave transmission and wave reception timings.
CONSTITUTION: The measuring frequency signal from an oscillating circuit 4 is modulated 5 into a pulse waveform of tone burst, and is amplified 6 to be supplied into a wave transmitter/receiver 1 placed in a water tank 3. The sound wave generated in the wave transmitter/receiver 1 is received by a standard unit 2, of which output signal is amplified 6 and inputted into a pulse voltage measuring circuit 7 to be synchronously measured together with the input voltage of the transmitter/receiver 1, so that the sensitivity is calculated. Next, by changing the wave transmission direction of the wave transmitter/receiver 1, the sensitivity is measured, and the directivity is obtained. In this case, the sound pressure level is judged 10 according to the signal level from the wave receiver 11, and a trigger circuit 8 is controlled by the output of such judgement, so that the operation timing of the modulating circuit 5 and measuring circuit 7 may be controlled.
COPYRIGHT: (C)1979,JPO&Japio
JP128578A 1978-01-09 1978-01-09 Measuring apparatus for wave transmitter/receiver Granted JPS5494379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP128578A JPS5494379A (en) 1978-01-09 1978-01-09 Measuring apparatus for wave transmitter/receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP128578A JPS5494379A (en) 1978-01-09 1978-01-09 Measuring apparatus for wave transmitter/receiver

Publications (2)

Publication Number Publication Date
JPS5494379A true JPS5494379A (en) 1979-07-26
JPS6315800B2 JPS6315800B2 (en) 1988-04-06

Family

ID=11497174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP128578A Granted JPS5494379A (en) 1978-01-09 1978-01-09 Measuring apparatus for wave transmitter/receiver

Country Status (1)

Country Link
JP (1) JPS5494379A (en)

Also Published As

Publication number Publication date
JPS6315800B2 (en) 1988-04-06

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