Title:
DEVICE FOR MEASURING THICKNESS OF ROTATOR AND METHOD FOR MEASURING THICKNESS OF ROTATOR
Document Type and Number:
WIPO Patent Application WO/2008/035438
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a noncontact measuring device and a noncontact measuring
method of the thickness of a rotator. [MEANS FOR SOLVING PROBLEMS] A device for
measuring the thickness of a rotator comprising a pair of jet nozzles for jetting
fluid, a means for driving the pair of jet nozzles in the approaching/separating
direction, a means for measuring the distance between nozzles for measuring
the distance between the pair of jet nozzles, a back pressure measuring means
for measuring the back pressures of the pair of jet nozzles, and a data processing
section performing operation based on the measurement data by the means for measuring
the distance between nozzles and the measurement data by the back pressure measuring
means. The data processing section stores the previously measured correlation
between the distance between a stationary sample composed of the same material
as that of a measurement object, i.e. a rotator, and the jet nozzle and the back
pressure value of the jet nozzle when fluid is jetted from the jet nozzle toward
the sample, calculates the distance between each jet nozzle and the rotator which
is positioned between the pair of jet nozzles from the correlation and the back
pressure of the jet nozzle measured by the back pressure measuring means when
fluid is jetted from the jet nozzle toward the rotator, and then calculates the
thickness of the rotator from the distance between nozzles measured by the means
for measuring the distance between nozzles, and the distance between the rotator
and each jet nozzle.
Inventors:
YAMAUCHI, Michikuni (34-1 Minamimagome 5-chom, Ohta-ku Tokyo 25, 1430025, JP)
Application Number:
JP2006/318867
Publication Date:
March 27, 2008
Filing Date:
September 22, 2006
Export Citation:
Assignee:
MARPOSS KK (34-1, Minamimagome 5-chome Ohta-ku Tokyo, 25, 1430025, JP)
マーポス株式会社 (〒25 東京都大田区南馬込５丁目３４番１号 Tokyo, 1430025, JP)
マーポス株式会社 (〒25 東京都大田区南馬込５丁目３４番１号 Tokyo, 1430025, JP)
International Classes:
G01B13/06; G01B13/00
Attorney, Agent or Firm:
SAKAGUCHI, Yoshihiko (19-9-701, Harigaya 3-chomeUrawa-ku, Saitama-shi, 330-0075, JP)
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