MEASUREMENT, COATING AND MONITORING SYSTEM AND METHOD

• US 20090122832A1
• Filed: 08/24/2006
• Published: 05/14/2009
• Est. Priority Date: 08/24/2005
• Status: Active Grant

• Current Assignee: Sensor Coating Systems Limited
• Original Assignee: New STS Limited
• Inventors: Nicholls, John Rayment, Fraser, Michael James, Heyes, Andrew Lawrence, Feist, Jorg Peter
• Granted Patent: US 9,212,947 B2
• Time in Patent Office: Days
• US Class Current: 374/161
• CPC Class Codes: C23C 4/11 Oxides
• CPC Class Codes: C23C 4/12 characterised by the method of spraying
• CPC Class Codes: F01D 21/003 Arrangements for testing or measuring for measuring vibrations G01H
• CPC Class Codes: F01D 5/288 Protective coatings for blades
• CPC Class Codes: F05D 2230/90 Coating; Surface treatment manufacture with deposition of material F05D2230/30
• CPC Class Codes: F05D 2260/80 Diagnostics
• CPC Class Codes: G01B 11/0658 with measurement of emissivity or reradiation
• CPC Class Codes: G01J 1/58 using luminescence generated by light
• CPC Class Codes: G01N 2021/6491 Measuring fluorescence and transmission; Correcting inner filter effect
• CPC Class Codes: G01N 21/64 Fluorescence; Phosphorescence
• CPC Class Codes: G01N 21/8422 Investigating thin films, e.g. matrix isolation method

Abstract

A measurement system for and method of measuring thicknesses of coatings as applied to objects and a coating system and method for coating objects, in particular three-dimensional objects, with coatings, in particular thermal barrier coatings (TBCs), and a monitoring system for and method of monitoring a state of a thermal barrier coating (TBC) as applied to an object which is exposed to a high-temperature environment, and a TBC for use with the same.

Claims

1-140. -140. (canceled)

141. A system for measuring a temperature of an object, the system comprising:

a luminescence detector unit for detecting a luminescence signal from the object;

a pyrometer unit for detecting a radiation signal from the object; and

a control unit for determining a reference temperature from the luminescence signal and a temperature of the object by calibrating the radiation signal with reference to the reference temperature.

142. The system of claim 153, wherein the thermal barrier coating comprises a luminescent coating.

143. The system of claim 153, wherein the thermal barrier coating comprises a first, lower luminescent coating on a surface of the object and a second, upper structural coating on the lower coating.

144. The system of claim 141, wherein the luminescence signal is a luminescence signal from a reference region of the object.

145. The system of claim 141, wherein the radiation signal comprises an infra-red signal.

146. The system of claim 141, wherein the radiation signal is an image which is captured from the object.

153. The system of claim 141, wherein the object is coated with a thermal barrier coating which includes a luminescent material.

147. A method of measuring a temperature of an object, the method comprising the steps of:

detecting a luminescence signal from the object;

detecting a radiation signal from the object;

determining a reference temperature from the luminescence signal; and

determining a temperature of the object by calibrating the radiation signal with reference to the reference temperature.

148. The method of claim 154, wherein the thermal barrier coating comprises a luminescent coating.

149. The method of claim 154, wherein the thermal barrier coating comprises a first, lower luminescent coating on a surface of the object and a second, upper structural coating on the lower coating.

150. The method of claim 147, wherein the luminescence signal is a luminescence signal from a reference region of the object.

151. The method of claim 147, wherein the radiation signal comprises an infra-red signal.

152. The method of claim 147, wherein the radiation signal is an image which is captured from the object.

154. The method of claim 147, wherein the object is coated with a thermal barrier coating which includes a luminescent material.