Alstom Technology Limited

Peter Lang

Matthias Hoebel

Roland Richard Moser

Bernd Fehrmann

Klaus Germerdonk

Karsten Franitza

Bernd Rabensteiner

A method is provided for determination of an operating temperature in a thermally highly loaded device. Multiple individual passive measurement elements, having a measurable physical parameter depending on a constant temperature set during heat treatment, are provided. The parameter is set differently for each of the different measurement elements which are combined to form an array. In a first measurement, values of the physical parameter for the array are determined before the array is subjected to the operating temperature. The array is subjected to the operating temperature in the device and in a second measurement, values are determined for all the measurement elements in the array. First and second measurement values of the physical parameter for each of the measurement elements are compared and the temperature of the heat treatment of that measurement element whose value of the physical parameter has changed the least is taken as the measured temperature.

Method for passive determination of the operating temperature in a thermally highly loaded device, and apparatus for carrying out the method

A measuring apparatus () for contactless detection of a distance between a surface () of a measurement object () and the measuring apparatus (), and for simultaneous contactless visual detection of the surface (), has a measuring head () holding a distance measuring device (), a camera apparatus () and an illumination device (), the illumination device () illuminating an operating point () on the surface () of the measurement object () that is simultaneously focused by the camera apparatus () and the distance measuring device (). On an optical axis (), between the illumination device () and the operating point (), a mirror and filter device (), that has at least one dichroic mirror () that transmits or reflects light beams as a function of wavelength, and thereby splits light reflected by the operating point () between the distance measuring device () and the camera apparatus (), is provided.

Measuring apparatus

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Sulz, Switzerland

Peter Lang