Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2011-04-19
2011-04-19
Feliciano, Eliseo Ramos (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C073S795000
Reexamination Certificate
active
07930112
ABSTRACT:
In a method of evaluating measured values for recognizing defect conditions due to material fatigue on aircraft parts, strain sensors (6) are applied on the critical locations of an aircraft (1) and measured values of outputs of the strain sensors are detected at different loading conditions, amplified and stored through several measuring circuits. An evaluating apparatus (9) derives, signals or indicates a material fatigue by comparison of current measured values with previous measured values. The critical aircraft parts (1) are impinged on with prescribed loading conditions by loading elements (3). The strain effect caused thereby is detected by measuring circuits. The evaluating apparatus (9) forms, for at least each loading condition and each measuring circuit, an allocated reference value and a permissible limit value range. If current measured values exceed the limit value range, this represents a material fatigue manifestation.
REFERENCES:
patent: 3387120 (1968-06-01), Funk et al.
patent: 4215412 (1980-07-01), Bernier et al.
patent: 4336595 (1982-06-01), Adams et al.
patent: 4480480 (1984-11-01), Scott et al.
patent: 4756194 (1988-07-01), Grandpierre et al.
patent: 4901575 (1990-02-01), Bohannan et al.
patent: 5195046 (1993-03-01), Gerardi et al.
patent: 5421204 (1995-06-01), Svaty, Jr.
patent: 5881971 (1999-03-01), Hickman
patent: 6006163 (1999-12-01), Lichtenwalner et al.
patent: 6370964 (2002-04-01), Chang et al.
patent: 6480792 (2002-11-01), Prendergast
patent: 2006/0004499 (2006-01-01), Trego et al.
patent: 0 110 865 (1984-06-01), None
patent: 1 018 641 (2000-07-01), None
Simpson et al., The canadian and Australian F/A-18 International Follow-On Structural Test Project, ICAS 2002 Congress, 17 pp.
23rd Congress of International Council of the Aeronautical Sciences, Sep. 8-13, 2002, Toronto, Canada, Paper ICAS 2002-0.6, 1 page.
Fasse W. F.
Fasse W. G.
Feliciano Eliseo Ramos
Hottinger Baldwin Messtechnik GmbH
Le Toan M
LandOfFree
Method for evaluating measured values for identifying a... 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 evaluating measured values for identifying a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for evaluating measured values for identifying a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2666022