Title:
DEVICE FOR MEASURING DEPOSIT THICKNESS USING ULTRASONIC WAVES, AND METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/086150
Kind Code:
A1
Abstract:
Provided are: a device for measuring the thickness of a deposit within a pipe used in a plant or the like; and a method for such measurement. The device for measuring the thickness of a deposit using ultrasonic waves comprises: an ultrasonic wave transmitting element disposed on one side of a pipe; an ultrasonic wave receiving element disposed facing the transmitting element, with the pipe therebetween; an ultrasonic wave transceiver that drives the ultrasonic wave transmitting element and that receives a signal from the ultrasonic wave receiving element; a propagation time measurement unit that measures the propagation time of an ultrasonic wave that has propagated through a medium within the pipe; and a deposit thickness calculation unit that calculates the thickness of a deposit within the pipe from the propagation time using the outer diameter of the medium and sound speed data.
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Inventors:
NAGASHIMA YOSHIAKI (JP)
Application Number:
PCT/JP2016/082506
Publication Date:
May 26, 2017
Filing Date:
November 02, 2016
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G01B17/02; G01N29/07; G01N29/44
Foreign References:
JPS6254112A | 1987-03-09 | |||
JP2008076296A | 2008-04-03 | |||
JP2002328119A | 2002-11-15 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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