Title:
DETERIORATION MEASUREMENT SENSOR AND DETERIORATION MEASUREMENT SYSTEM FOR RESIN
Document Type and Number:
WIPO Patent Application WO/2016/167067
Kind Code:
A1
Abstract:
Provided is a deterioration measurement sensor and a deterioration measurement system for resin capable of accurately ascertaining the degree of progression of resin deterioration of a molded transformer. The deterioration measurement sensor (20) for resin that detects mass change in order to estimate the degree of progression of deterioration of a resin according to the present invention comprises: at least two first and second crystal vibrators (21, 22) that detect the degree of progression of deterioration and that have resin applied thereto; respective oscillation circuits (24) for the first and second crystal vibrators; and a first cover (23) that covers the first crystal vibrator and that inhibits the resin from being exposed to resin deterioration factors. Further, the deterioration measurement system for resin according to the present invention comprises: the deterioration measurement sensor (20) for resin; a counter (26) that counts the vibrations caused by the respective oscillation circuits of the sensor; and a processing apparatus (28) that calculates a temperature compensated frequency change amount corresponding to a mass reduction amount of the resin applied to the sensor; wherein a lifetime prediction of the resin is performed from the mass reduction amount of the resin.
Inventors:
OOTAKE ATSUSHI (JP)
KOBAYASHI KINYA (JP)
AMOU SATORU (JP)
KOBAYASHI KINYA (JP)
AMOU SATORU (JP)
Application Number:
PCT/JP2016/058028
Publication Date:
October 20, 2016
Filing Date:
March 14, 2016
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
G01N5/02; G01N17/00
Foreign References:
| JP2003149128A | 2003-05-21 | |||
| JP2009236607A | 2009-10-15 | |||
| JPH09297096A | 1997-11-18 | |||
| JPH04307351A | 1992-10-29 | |||
| US6370955B1 | 2002-04-16 | |||
| JP2008064580A | 2008-03-21 | |||
| JP2012058109A | 2012-03-22 | |||
| JP2012141146A | 2012-07-26 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P. C. (JP)
Patent business corporation Isono international patent trademark office (JP)
Patent business corporation Isono international patent trademark office (JP)
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