Measuring and testing – Moisture content or absorption characteristic of material – By heat conductivity
Patent
1993-04-16
1995-07-18
Gutierrez, Diego F. F.
Measuring and testing
Moisture content or absorption characteristic of material
By heat conductivity
374124, 374 45, G01N 2556
Patent
active
054331064
ABSTRACT:
To improve the detection precision and detection efficiency and further to automatize the detection process, moisture in a honeycomb panel is detected as follows: the honeycomb panel is heated by a lamp; the surface temperature of the heated construction is measured by an infrared radiation thermometer; the measured temperature is displayed to roughly discriminate an abnormal portion (i.e., a portion containing moisture); the honeycomb panel is further heated continuously to detect temperature-change-rates at both abnormal and normal portions (i.e., a portion not containing moisture); and the two temperature-change-rates are compared with each other to discriminate a presence of moisture.
REFERENCES:
patent: 3034334 (1962-05-01), DeForest
patent: 3216241 (1965-11-01), Hansen
patent: 3504524 (1970-04-01), Maley
patent: 3566669 (1971-03-01), Lawrence et al.
patent: 3681970 (1972-08-01), Wells
patent: 4532797 (1985-08-01), Yang
patent: 4612802 (1986-09-01), Clarke et al.
patent: 4647220 (1987-03-01), Adams
patent: 4762426 (1988-08-01), Foss
patent: 4845978 (1989-07-01), Whitford
patent: 4913558 (1990-04-01), Wettervik et al.
patent: 4965451 (1990-10-01), Solter
patent: 5031456 (1991-07-01), Askwith et al.
Transcript of Lectures of 29th Airplane Symposium, 1991, pp. 390-393.
Hagemaier, D. J., "Thermal Insulation Moisture Detection," Materials Evaluation, pp. 55-60 (Mar. 1970).
Lotti, Franco et al., "Flaw Recognition in Composite by Processing Sequences of Infrared Images", Accession No. 3810768, Abstract; and Time-Varying Image Processing and Moving Object Recognition, 2, Proceedings of the 3rd Intl. Workshop, Amsterdam, NL, pp. 232-240. (1990).
S. E. Cohen, "The Design and Application of the Traversing Infra-red Inspection System-TIRIS", Non-Destructive Testing, V. 6, No. 2, Apr. 1973, UK, pp. 74-80.
Patent Abstracts of Japan, V. 11, No. 201 (P-590) Jun. 30, 1987, and JP62024134, Mitsui Eng & Shipbuild Co. Ltd. (only abstract considered).
Hirasawa Hideyuki
Matsumura Hiroyuki
Ogata Takamasa
Tsubaki Kenji
Uchiyama Masato
Gutierrez Diego F. F.
Kawasaki Jukogyo Kaisha
LandOfFree
Method for detecting moisture in a honeycomb panel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for detecting moisture in a honeycomb panel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for detecting moisture in a honeycomb panel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2415232