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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 particles

Info

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
Application number
CA 2055267
Other languages
French (fr)
Other versions
CA2055267C (en
Inventor
Christian Moreau
Mario Lamontagne
Paolo Cielo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Council of Canada
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2055267 priority Critical patent/CA2055267C/en
Priority to DE1992619560 priority patent/DE69219560T2/en
Priority to EP19920310333 priority patent/EP0542542B1/en
Publication of CA2055267A1 publication Critical patent/CA2055267A1/en
Application granted granted Critical
Publication of CA2055267C publication Critical patent/CA2055267C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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)
  • Plasma Technology (AREA)
  • Coating By Spraying Or Casting (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.
CA 2055267 1991-11-12 1991-11-12 Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles Expired - Lifetime CA2055267C (en)

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
DE1992619560 DE69219560T2 (en) 1991-11-12 1992-11-12 Method and device for monitoring the temperature and velocity of sprayed plasma particles
EP19920310333 EP0542542B1 (en) 1991-11-12 1992-11-12 Method and apparatus for monitoring the temperature and velocity of plasma sprayed 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)

* Cited by examiner, † Cited by third party
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
DE502007003848D1 (en) 2007-03-23 2010-07-01 Siemens Ag Device and method for coating a component with adjusting 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0542542A1 (en) 1993-05-19
EP0542542B1 (en) 1997-05-07
DE69219560D1 (en) 1997-06-12
CA2055267C (en) 1999-01-12
DE69219560T2 (en) 1997-11-13

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