Patent ID: 6980284
Filing Date: 2005-12-27
Classification: G01N

Abstract:
1. A condensation particle counter, comprising: a storage pool with an operating liquid contained therein; a saturator integrally formed with the storage pool and having an absorbing member provided therein to come into contact with the operating liquid for absorbing the operating liquid and a heater installed at an outer wall thereof for forming the operating liquid into vapor; a capillary located downstream of the saturator for condensing the vapor therein to grow particles; an optical instrument installed adjacent to an outlet of the capillary for counting the grown particles; and a suction means located downstream of the capillary for sucking the grown particles thereinto; said counter further comprising the operating liquid, wherein a temperature of the vapor of said operating liquid in said capillary is reduced substantially through adiabatic expansion of the vapor, rather than through heat exchange with the environment.