JPS54127353A - Level detector utilizing ultrasonic waves - Google Patents

Level detector utilizing ultrasonic waves

Info

Publication number
JPS54127353A
JPS54127353A JP3505678A JP3505678A JPS54127353A JP S54127353 A JPS54127353 A JP S54127353A JP 3505678 A JP3505678 A JP 3505678A JP 3505678 A JP3505678 A JP 3505678A JP S54127353 A JPS54127353 A JP S54127353A
Authority
JP
Japan
Prior art keywords
receivers
transmitter
air bubble
ultrasonic waves
time
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
JP3505678A
Other languages
Japanese (ja)
Inventor
Toshio Koda
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP3505678A priority Critical patent/JPS54127353A/en
Publication of JPS54127353A publication Critical patent/JPS54127353A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To enable the air bubble position of the level to be detected as an electric signal by processing the signals received in ultrasonic transmitter-receivers.
CONSTITUTION: When the ultrasonic pulses from ultrasonic transmitter-receivers 5a, 5b are simultaneously radiated, a part thereof collide with an air bubble 3 and reflect based on the difference in impedance of liquid 4 and air bubble 3. The rest pass through the liquid and arrive at the transmitter-receivers in the opposite positions. At this time, the pulses reflected by the air bubble 3 are received in the respective transmitter-receivers after the time ta or tb and the pulses of the transmitter-receivers in the opposite positions are received after the time tc. Hence, the times ta, tb are extracted as electric signals based on the outputs of the transmitter- receivers 5a, 5b, whereby the position of the air bubble, i.e., the inclination of the level to be measured is detected.
COPYRIGHT: (C)1979,JPO&Japio
JP3505678A 1978-03-27 1978-03-27 Level detector utilizing ultrasonic waves Pending JPS54127353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3505678A JPS54127353A (en) 1978-03-27 1978-03-27 Level detector utilizing ultrasonic waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3505678A JPS54127353A (en) 1978-03-27 1978-03-27 Level detector utilizing ultrasonic waves

Publications (1)

Publication Number Publication Date
JPS54127353A true JPS54127353A (en) 1979-10-03

Family

ID=12431367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3505678A Pending JPS54127353A (en) 1978-03-27 1978-03-27 Level detector utilizing ultrasonic waves

Country Status (1)

Country Link
JP (1) JPS54127353A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938655A (en) * 1972-08-11 1974-04-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938655A (en) * 1972-08-11 1974-04-10

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