Water quality sampling system

Details Water quality sampling system Water quality sampling system

2008-08-11

2009-06-02

Nghiem, Michael P. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Chemical analysis

Reexamination Certificate

active

07542855

ABSTRACT:
A method and system are provided in which a water sensing device is equipped with a water-sealed sampling chamber enclosing the sensing probes of the sensing device. When the device is placed into its water habitat, water flow into and out of the sampling chamber is controlled such that water is present in the sampling chamber only during a relatively brief period of time when water quality measurements are taken by the probes. After the water quality measurements have been taken by the probes, the water sample is substantially pumped out of the sampling chamber so as to minimize the time during which the probes are in contact with the water being analyzed.

REFERENCES:
patent: 4314969 (1982-02-01), Arthur et al.
patent: 4763537 (1988-08-01), Scott et al.
patent: 5087377 (1992-02-01), Josefik
patent: 5708220 (1998-01-01), Burge
patent: 6197256 (2001-03-01), Siepmann

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