CA2055267A1 - Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles - Google Patents
Method and apparatus for monitoring the temperature and velocity of plasma sprayed particlesInfo
- Publication number
- CA2055267A1 CA2055267A1 CA 2055267 CA2055267A CA2055267A1 CA 2055267 A1 CA2055267 A1 CA 2055267A1 CA 2055267 CA2055267 CA 2055267 CA 2055267 A CA2055267 A CA 2055267A CA 2055267 A1 CA2055267 A1 CA 2055267A1
- Authority
- CA
- Canada
- Prior art keywords
- velocity
- temperature
- slit
- optical fibre
- particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 2
- 238000012544 monitoring process Methods 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 abstract 3
- 239000013307 optical fiber Substances 0.000 abstract 3
- 230000005855 radiation Effects 0.000 abstract 3
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/0006—Investigating plasma, e.g. measuring the degree of ionisation or the electron temperature
- H05H1/0012—Investigating plasma, e.g. measuring the degree of ionisation or the electron temperature using electromagnetic or particle radiation, e.g. interferometry
- H05H1/0025—Investigating plasma, e.g. measuring the degree of ionisation or the electron temperature using electromagnetic or particle radiation, e.g. interferometry by using photoelectric means
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Coating By Spraying Or Casting (AREA)
- Plasma Technology (AREA)
Abstract
A method and an apparatus for monitoring simultaneously the temperature and the velocity of sprayed particles. The system is comprised of a sensor head attached to the spray gun, an optical fibre transmitting the collected radiation to detection apparatus, and a protective detection cabinet having the detection apparatus that incorporates two detectors. A
two-slit or multiple-slit mask is located in the sensor head at the end of the optical fibre. For the temperature measurements, the particle emitted radiation collected by the sensor head is transmitted to two photodetectors, filtered by interference filters at two adjacent wavelengths. The particle temperature may be computed from the ratio of the detector outputs. To measure the velocity, the two-slit system collects radiation emitted by the in-flight particles travelling in the sensor field of view, which generates a double peak light pulse transmitted through the optical fibre.
The time delay between these two peaks may be evaluated automatically and the particle velocity computed knowing the distance between the two slit images.
two-slit or multiple-slit mask is located in the sensor head at the end of the optical fibre. For the temperature measurements, the particle emitted radiation collected by the sensor head is transmitted to two photodetectors, filtered by interference filters at two adjacent wavelengths. The particle temperature may be computed from the ratio of the detector outputs. To measure the velocity, the two-slit system collects radiation emitted by the in-flight particles travelling in the sensor field of view, which generates a double peak light pulse transmitted through the optical fibre.
The time delay between these two peaks may be evaluated automatically and the particle velocity computed knowing the distance between the two slit images.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2055267 CA2055267C (en) | 1991-11-12 | 1991-11-12 | Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles |
| EP19920310333 EP0542542B1 (en) | 1991-11-12 | 1992-11-12 | Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles |
| DE1992619560 DE69219560T2 (en) | 1991-11-12 | 1992-11-12 | Method and device for monitoring the temperature and velocity of sprayed plasma particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2055267 CA2055267C (en) | 1991-11-12 | 1991-11-12 | Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2055267A1 true CA2055267A1 (en) | 1993-05-13 |
| CA2055267C CA2055267C (en) | 1999-01-12 |
Family
ID=4148738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2055267 Expired - Lifetime CA2055267C (en) | 1991-11-12 | 1991-11-12 | Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0542542B1 (en) |
| CA (1) | CA2055267C (en) |
| DE (1) | DE69219560T2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10140299B4 (en) * | 2001-08-16 | 2004-10-28 | Mtu Aero Engines Gmbh | Method for monitoring and online diagnosis of a thermal spraying process |
| US7070835B2 (en) * | 2003-06-09 | 2006-07-04 | Siemens Power Generation, Inc. | Method for applying a coating to a substrate |
| DE102005016189A1 (en) | 2005-04-08 | 2006-10-12 | Mtu Aero Engines Gmbh | Arrangement for monitoring thermal spraying processes |
| EP1978790B1 (en) * | 2007-03-23 | 2010-05-19 | Siemens Aktiengesellschaft | Device and method for coating a component and adjustment device |
| GB0819359D0 (en) * | 2008-10-22 | 2008-11-26 | Intrinsiq Materials Ltd | Plasma torch |
| CN111006704B (en) * | 2019-11-29 | 2021-11-23 | 江苏智冷物联技术有限公司 | Sensor data processing method, management platform and sensor header |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4122351A (en) * | 1977-08-30 | 1978-10-24 | The United States Of America As Represented By The United States Department Of Energy | Automatic targeting of plasma spray gun |
-
1991
- 1991-11-12 CA CA 2055267 patent/CA2055267C/en not_active Expired - Lifetime
-
1992
- 1992-11-12 DE DE1992619560 patent/DE69219560T2/en not_active Expired - Fee Related
- 1992-11-12 EP EP19920310333 patent/EP0542542B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69219560T2 (en) | 1997-11-13 |
| EP0542542B1 (en) | 1997-05-07 |
| EP0542542A1 (en) | 1993-05-19 |
| DE69219560D1 (en) | 1997-06-12 |
| CA2055267C (en) | 1999-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |