Liquid analyzer device and related method

摘要

An agitator (1) is for a liquid analysis system (3, 50). It has a chamber (5) for reception of a sample liquid. A passageway (6) from the bottom of the chamber (5) ends in an agitator chamber (7). A side wall of the agitator chamber (7) is formed by a diaphragm (8). The diaphragm (8) is connected to an electric motor (9) with an eccentric drive for reciprocating movement of the diaphragm (8). A gas inlet (10) in the opposite side of the body (2) is connected by a passageway (11) to the agitator chamber (7). The agitation chamber has a domed internal face opposed to the diaphragm, by which about 10% of the agitation chamber (7) volume is displaced by the inward movement of the diaphragm (8). Also, advantageously, there is a uniform application of displacement force within the agitation chamber (7) by virtue of the domed internal surface.

主权项

1. An agitator for a liquid analysis system, the agitator comprising:
a liquid sample chamber for containing a liquid, an agitation chamber linked by a liquid passageway to the liquid sample chamber, a gas inlet linked by a gas passageway to the agitation chamber, a reciprocating member mounted for contact with liquid and gas in the agitation chamber, wherein, the agitator further comprises a drive means connected to the reciprocating member, wherein the drive means displaces the reciprocating member to mix incoming gas from the gas inlet and liquid from the liquid sample chamber in the agitation chamber and to push the mixture back to the liquid sample chamber, via the liquid passageway, and the capacity of the liquid sample chamber is in the range of 1 ml to 25 l.