Measuring and testing – Instrument proving or calibrating – Liquid level or volume measuring apparatus
Patent
1999-04-30
2000-08-01
Noland, Thomas P.
Measuring and testing
Instrument proving or calibrating
Liquid level or volume measuring apparatus
G01F 2500
Patent
active
06094966&
ABSTRACT:
A low volume liquid handling system is described which includes a microdispenser employing a piezoelectric transducer attached to a glass capillary, a positive displacement pump for priming and aspirating liquid into the microdispenser, controlling the pressure of the liquid system, and washing the microdispenser between liquid transfers, and a pressure sensor to measure the liquid system pressure and produce a corresponding electrical signal. The pressure signal is used to verify and quantify the microvolume dispensed and is used to perform automated calibration and diagnostics on the microdispenser.
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Chibucos Nicholas S.
Meyer Wilhelm
Papen Roeland F.
Pelc Richard E.
Noland Thomas P.
Packard Instruments Company
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