Robotic liquid separation sensing using a cannula

Details Robotic liquid separation sensing using a cannula Robotic liquid separation sensing using a cannula

1988-01-28

1989-05-16

Tokar, Michael J.

Measuring and testing

Sampler, sample handling, etc.

Automatic control

73304C, 361284, G01N 114, H01G 528

Patent

active

048298379

ABSTRACT:
Robotic liquid separation operates independently of liquid volume, viscosity, or optical characteristics, by sensing changes in the dielectric constant of the liquid as it is being drawn through a cannula. The cannula has electrodes which form a sensing capacitor for detecting the changes in the liquid dielectric constant as the liquid is drawn therethrough.

REFERENCES:
patent: 3545271 (1970-12-01), Amis et al.
patent: 3588859 (1971-06-01), Petree
patent: 3770020 (1973-11-01), Tamura et al.
patent: 3894438 (1975-07-01), Ginsberg
patent: 4165641 (1979-08-01), Pomerantz et al.
patent: 4240028 (1980-12-01), Davis, Jr.
patent: 4325909 (1982-04-01), Coulter et al.
patent: 4399711 (1983-08-01), Klein
patent: 4568874 (1986-02-01), Kramer et al.

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