Kapazitive Flüssigkeitsvolumenmessung

Details

Veröffentlichungs-Nr.

EP4715389

Anmeldetag

18. September 2024

Veröffentlichung

25. März 2026

Rechtsraum

EP

IPC

G01N35/10(GLASGOW IAN K et al.)(VILAJ VOLFGANG et al.)(SCHARDT PHILLIP et al.)

Abstract

A laboratory automation apparatus with a liquid volume measurement functionality comprising a working table, a pipettor comprising a pipetting head with an electrode providing a capacitive sensor with a reference electrode. A robotic arm is configured to move the pipetting head above the working table. A processor is operatively coupled to the robotic arm, to the pipettor and to the electrode by an electronic circuit. A capillary is located on the working table having an opening for receiving a target amount of liquid from the pipettor to form an air-liquid meniscus in the capillary. The robotic arm is configured to hover the electrode over the capillary to detect a change in capacitance related to the position of the meniscus, and the processor is configured to calculate the transferred amount of liquid from the position of the meniscus in the capillary.

Anmelder

Firma

TECAN Trading AG

Land

🇨🇭 Schweiz

Fachgebiete