Device and method for measuring radial air gap with millimeter waves
摘要
<p>The method involves continuously transmitting millimeter wave by a transmitter and receiver unit (60) accommodated in a region of a housing wall (100) of a turbine housing (10). The millimeter wave reflected at a radial outer edge (30) is received by the transmitter and receiver unit. A profile of the outer edge is detected in direction of movement of a turbine blade (20) by subsequent focusing with help of numeric process. The distance between a blade edge and the housing wall is determined by a phase analysis of the received millimeter wave.</p>
申请公布号
EP2042830(A1)
申请公布日期
2009.04.01
申请号
EP20080165209
申请日期
2008.09.26
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
BOSSELMANN, THOMAS DR.;HUBER, KLAUS DR.;SCHICHT, ANDREAS;SCHMIDT, LORENZ-PETER PROF.;WEINZIERL, JOCHEN DR.;WILLSCH, MICHAEL DR.