The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 1996
Filed:
Feb. 02, 1994
Joachim Niewisch, Nurnberg, DE;
Ulrich Schatzle, Rottenbach, DE;
Siemens Aktiengesellschaft, Munchen, DE;
Abstract
A lithotripsy measurement arrangement for calibrating ultrasonic shock wave sensors includes a generator 32 that is arranged at one end of a steepening tube 31 filled with a sound-carrying medium 3. Additionally, the arrangement includes an optical sensor head 34 which measures the measurement shock waves generated by generator 32 and steepened in steepening tube 31, and an analysis unit 10 optically connected via a fiber bundle 50 to sensor head 34. The end 5 of fiber bundle 50 is arranged in a measurement volume 4 inside sensor head 34 opposite a reflector region 22 of a film 2, to irradiate reflector region 22 with light and sense the reflected light. Film 2 is fastened to housing 13 of sensor head 34. Because of its low mass, film 2 follows the movement of the molecules of medium 3 when a measurement shock wave strikes an outer surface 20 of film 2. The corresponding excursion of film 2 is analyzed as a change in intensity of the light reflected back from reflector region 22 into fiber bundle 50.