Testing master block and its manufacturing method

Details Testing master block and its manufacturing method Testing master block and its manufacturing method

G - Physics

01

B

G01B 5/008 (2006.01)

Patent

CA 2369888

A plurality of fixing holes (13) are made in the upper and side faces of a hollow rectangular prism block body (1A) at least the top and four side faces of which are quartz glass or monocrystalline quartz rectangular plates (10,11,12). A plurality of reference members (9), each having a reference measuring face with which the fore end of a probe of a measuring apparatus is brought into contact, are inserted into the fixing holes (13), respectively, and secured in place. An inspection master block ensuring a high inspection accuracy by minimizing the effect of ambient temperature variation and a method for producing the same are thereby provided.

Selon l'invention, plusieurs trous de fixation (13) sont pratiqués sur les faces supérieure et latérales d'un corps de bloc prismatique creux rectangulaire (IA), dont au moins la face supérieure et les faces latérales sont des plaques rectangulaires en verre de quartz ou en quartz monocristallin (10, 11, 12). Plusieurs éléments de référence (9), présentant chacun une face de mesure de référence avec laquelle l'extrémité avant d'une sonde d'un appareil de mesure entre en contact, sont insérés dans les trous de fixation (13), respectivement, et solidement maintenus en place. On obtient ainsi un bloc principal de contrôle qui peut assurer un contrôle de grande précision en réduisant au minimum l'incidence des variations de la température ambiante. L'invention concerne en outre un procédé de production dudit bloc.

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