JPS56145318A - Multibeam ultrasonic flowmeter - Google Patents

Multibeam ultrasonic flowmeter

Info

Publication number
JPS56145318A
JPS56145318A JP4944080A JP4944080A JPS56145318A JP S56145318 A JPS56145318 A JP S56145318A JP 4944080 A JP4944080 A JP 4944080A JP 4944080 A JP4944080 A JP 4944080A JP S56145318 A JPS56145318 A JP S56145318A
Authority
JP
Japan
Prior art keywords
transmitter
output
relay contacts
adaptor
control part
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
JP4944080A
Other languages
Japanese (ja)
Inventor
Hiroshi Minami
Chuji Akiyama
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP4944080A priority Critical patent/JPS56145318A/en
Publication of JPS56145318A publication Critical patent/JPS56145318A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

PURPOSE:To make it possible to obtain a stable information on a flow rate without acoustic interference and the like between ultrasonic wave propagation channels by providing a control part switching sequentially the output of ultrasonic-wave transmitter-receivers provided in plural and opposedly in a pipe line and thereby making the device hard to be influenced by the distribution of a flow speed. CONSTITUTION:The output of two sets of the transmitter-receiver couples a1, a2 and b1, b2 in the pipe line 1 is switched over and is inputted to the terminals 3 and 4 of a conversion circuit 2 for a single beam through the intermediary of an adaptor 6 whose relay contacts S1 and S2 are controlled by the control part 7. The adaptor 6 switches over the relay contacts S1 and S2 periodically by means of a relay coil 12 excited by the output of timers 10 and 11 acting alternately and sends signals obtained from the transmitter-receivers a1, a2 and b1, b2 to the conversion circuit 2 for the single beam. Therefore, the information on the flow rate corresponding to the switching time of the relay contacts can be obtained alternately from the transmitter-receiver couples a1, a2 and b1, b2.
JP4944080A 1980-04-15 1980-04-15 Multibeam ultrasonic flowmeter Pending JPS56145318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4944080A JPS56145318A (en) 1980-04-15 1980-04-15 Multibeam ultrasonic flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4944080A JPS56145318A (en) 1980-04-15 1980-04-15 Multibeam ultrasonic flowmeter

Publications (1)

Publication Number Publication Date
JPS56145318A true JPS56145318A (en) 1981-11-12

Family

ID=12831169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4944080A Pending JPS56145318A (en) 1980-04-15 1980-04-15 Multibeam ultrasonic flowmeter

Country Status (1)

Country Link
JP (1) JPS56145318A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004544C2 (en) * 1996-11-15 1998-05-18 Instromet Ultrasonics Bv Method and device for determining the flow rate and / or throughput of a flowing fluid.
JP2008190702A (en) * 2007-02-08 2008-08-21 Inaba Denki Sangyo Co Ltd Through hole fire protective member, through hole fire protective structure using the member, and construction method of fire-protecting through hole

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004544C2 (en) * 1996-11-15 1998-05-18 Instromet Ultrasonics Bv Method and device for determining the flow rate and / or throughput of a flowing fluid.
EP0843160A1 (en) * 1996-11-15 1998-05-20 Instromet Ultrasonics B.V. Method and device for determining the flow velocity and/or throughput of a flowing fluid
JP2008190702A (en) * 2007-02-08 2008-08-21 Inaba Denki Sangyo Co Ltd Through hole fire protective member, through hole fire protective structure using the member, and construction method of fire-protecting through hole

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