US5016266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for monitoring monocrystalline structures with images of Kikuchi pseudo-lines
Assignee: Safran Helicopter Engines SAS
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Filing: 1990-02-21
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Granted: 1991-05-14
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Expires: 2010-02-21
Abstract
Abstract An object (12) is irradiated by means of a divergent and polychromatic beam of X-rays for producing a diagram composed of Kikuchi pseudo-lines. An X-ray generator (4) is mounted on a stand (1), and an automatic handler (13) presents the objects (12) in confronting relation to the microfocus (F) of the generator. An intensity amplifier (6) and a video camera (7) record the obtained diagrams composed of the pseudo-lines. The handler apparatus is controlled by an electronic device (17).
Inventors
- 👤 Michel Meurtin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:32
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N23/227
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
49 words
Process for monitoring and controlling the crystallographic quality of objects having a monocrystalline structure, said process comprising bombarding said monocrystalline structure with a beam of photons in a natural ambient atmosphere, and producing an enlarged picture of a diagram composed of Kikuchi pseudo-lines obtained by bombarding said monocrystalline structure.
Claim 2
Dependent Claim
49 words
Process for monitoring and controlling the crystallographic quality of objects having a monocrystalline structure, said process comprising bombarding said monocrystalline structure with a beam of photons in a natural ambient atmosphere, and producing an enlarged picture of a diagram composed of Kikuchi pseudo-lines obtained by bombarding said monocrystalline structure.
Claim 3
Dependent Claim
17 words
Process according to claim 1, including irradiating the monocrystalline structure with a divergent polychromatic beam of X-rays.
Claim 4
Dependent Claim
30 words
Process according to claim 2, including employing for irradiating said structure an X-ray generator having a microfocus selected from the group consisting of a directional microfocus and a panoramic microfocus.
Claim 5
Dependent Claim
15 words
Process according to claim 3, wherein said microfocus has a diameter not exceeding 100 μm.
Claim 6
Dependent Claim
30 words
Process according to claim 1, including effecting a video recording of the image of the diagram and processing the image by a computer with the aid of an appropriate program.
Claim 7
Dependent Claim
87 words
Apparatus for carrying out a process for controlling the crystallographic quality of objects having a monocrystalline structure, said apparatus comprising a detecting means for producing an enlarged picture of a diagram composed of Kikuchi pseudo-lines obtained by bombarding said monocrystalline structure with a beam of photons in a natural ambient atmosphere, said apparatus further comprising a stand, an X-ray generator having a microfocus, an assembly comprising in series an intensity amplifier, a video camera device, and an object support interposed between the microfocus and the intensify amplifier.
Claim 8
Dependent Claim
87 words
Apparatus for carrying out a process for controlling the crystallographic quality of objects having a monocrystalline structure, said apparatus comprising a detecting means for producing an enlarged picture of a diagram composed of Kikuchi pseudo-lines obtained by bombarding said monocrystalline structure with a beam of photons in a natural ambient atmosphere, said apparatus further comprising a stand, an X-ray generator having a microfocus, an assembly comprising in series an intensity amplifier, a video camera device, and an object support interposed between the microfocus and the intensify amplifier.
Claim 9
Dependent Claim
43 words
Apparatus according to claim 6, further comprising a computer and an appropriate program for effecting a video recording of the image of the diagram comprised of Kikuchi pseudo-lines and for processing the image by the computer with the aid of the appropriate program.
Claim 10
Dependent Claim
55 words
Apparatus according to claim 6, wherein said assembly has an optical axis, said apparatus further comprising a movable support slidable in a direction perpendicular to the optical axis of said assembly, an image receiver carried by said movable support, said movable support being adapted to present the image receiver in confronting relation to said assembly.
Claim 11
Dependent Claim
55 words
Apparatus according to claim 7, wherein said assembly has an optical axis, said apparatus further comprising a movable support slidable in a direction perpendicular to the optical axis of said assembly, an image receiver carried by said movable support, said movable support being adapted to present the image receiver in confronting relation to said assembly.
Claim 12
Dependent Claim
22 words
Apparatus according to claim 6, further comprising means for presenting said objects automatically and in succession in confronting relation to said microfocus.
Claim 13
Dependent Claim
22 words
Apparatus according to claim 7, further comprising means for presenting said objects automatically and in succession in confronting relation to said microfocus.
Claim 14
Dependent Claim
22 words
Apparatus according to claim 8, further comprising means for presenting said objects automatically and in succession in confronting relation to said microfocus.
Claim 15
Dependent Claim
22 words
Apparatus according to claim 9, further comprising means for presenting said objects automatically and in succession in confronting relation to said microfocus.
Claim 16
Dependent Claim
13 words
Apparatus according to claim 8, wherein said image receiver is a fluorescent screen.
Claim 17
Dependent Claim
13 words
Apparatus according to claim 8, wherein said image receiver is a radiographic film.
References Cited (Backward Citations)
US4788702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |