Mehanski in elektronski merilnik hitrosti delcev v stroju za peskanje
A mechanical and electronic measurement system for particle velocity measurements in a shotblasting machine

english
slovenian

2002

volume 48, issue 12

Univerza v Ljubljani, Fakulteta za strojništvo

Two of the main problems for particle velocity measurement in a shotblasting machine are very abrasive shotblasting particles and a high concentration of dust within the closed testing chamber. The application of noncontacting optical methods is usually impossible and robust shields protecting the sensors from abrasion have to be used for contacting velocity measurements. An electronic measurement system has been developed as an alternative to the robust, mechanical measurement device. This alternative electronic system has a simple construction and uses low-cost elements that can be replaced very quickly and, therefore, no robust shields are necessary. This enables very good mobility and positioning of the sensor along both axes in a cross-section plane of a particle stream. The development, operation and application of this mechanical and electronic particle velocity measurement system are described in this paper. Experimental results are presented, discussed and both methods are compared.

16.09.2009