Test circuit of laser particle size analyzer

• Main Authors: HOU BENJIE, WANG CHUANSHUAI, WU XIAOWU
• Format: Patent
• Language: Chinese; English
• Published: 10.07.2013
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a test circuit of a laser particle size analyzer. The tester comprises a laser emitting window, a test section and a laser receiving window which are connected, wherein a two-phase air flow pipeline communicated with the inner cavity of the test section is arranged on the upper part of the test section; clean air pipelines are respectively arranged at both sides of the two-phase air flow pipeline and are communicated with the inner cavity of the test section; and the cross sections of the two-phase air flow pipeline and the inner pipelines of the clean air pipelines are rectangular. Tested particles are prevented from being contacted with the test window to protect cleanness of the window, so as to continuously measure by the laser particle size analyzer to ensure the test accuracy.