A dispensing device that dispenses a liquid sample with a target weight x (in grams) includes: a pipette that discharges the liquid sample into a vessel; and a controller that controls the pipette. The controller performs: first liquid discharge processing in which the controller discharges the liquid sample with a volume of (x/ρ0×y) milliliters (mL) into the pipette, where y is a numeric value greater than 0 and smaller than 1, and ρ0 is the tentative density (in grams per mL) of the liquid sample; first weight acquisition processing in which the controller acquires information about the weight z (in grams) of the liquid sample discharged in first liquid discharge processing; density calculation processing in which the controller calculates the density p (in grams/mL) of the liquid sample according to the expression ρ=z/(x/ρ0×y); and second liquid discharge processing in which the controller discharges, into the pipette, the liquid sample with a volume based on the density ρ, weight z, and target weight x.

A refrigerator appliance includes a drip tray cover including two strain gauge sensors that are coupled to a bottom surface thereof; a memory; and a controller. The controller is configured to detect, via the two strain gauge sensors, a weight of a vessel on the drip tray cover based on a strain; receive, via input, one or more selections, the one or more selections indicative of an amount of material to be dispensed into the vessel, the material including liquid, ice, or any combination thereof; dispensing the material in accordance with the one or more selections; continuously measure, via the two strain gauge sensors, the amount of material being dispensed in accordance with the one or more selections; and terminate, after the vessel receives the amount of material that is measured and equivalent to the one or more selections, the dispensing of the material into the vessel.

A dispensing device that dispenses a liquid sample with a target weight x (in grams) includes: a pipette that discharges the liquid sample into a vessel; and a controller that controls the pipette. The controller performs: first liquid discharge processing in which the controller discharges the liquid sample with a volume of (x/0y) milliliters (mL) into the pipette, where y is a numeric value greater than 0 and smaller than 1, and 0 is the tentative density (in grams per mL) of the liquid sample; first weight acquisition processing in which the controller acquires information about the weight z (in grams) of the liquid sample discharged in first liquid discharge processing; density calculation processing in which the controller calculates the density p (in grams/mL) of the liquid sample according to the expression =z/(x/0y); and second liquid discharge processing in which the controller discharges, into the pipette, the liquid sample with a volume based on the density , weight z, and target weight x.

A refrigerator appliance includes a drip tray cover including two strain gauge sensors that are coupled to a bottom surface thereof; a memory; and a controller. The controller is configured to detect, via the two strain gauge sensors, a weight of a vessel on the drip tray cover based on a strain; receive, via input, one or more selections, the one or more selections indicative of an amount of material to be dispensed into the vessel, the material including liquid, ice, or any combination thereof; dispensing the material in accordance with the one or more selections; continuously measure, via the two strain gauge sensors, the amount of material being dispensed in accordance with the one or more selections; and terminate, after the vessel receives the amount of material that is measured and equivalent to the one or more selections, the dispensing of the material into the vessel.

A refrigerator appliance includes a drip tray cover including two strain gauge sensors that are coupled to a bottom surface thereof; a memory; and a controller. The controller is configured to detect, via the two strain gauge sensors, a weight of a vessel on the drip tray cover based on a strain; receive, via input, one or more selections, the one or more selections indicative of an amount of material to be dispensed into the vessel, the material including liquid, ice, or any combination thereof; dispensing the material in accordance with the one or more selections; continuously measure, via the two strain gauge sensors, the amount of material being dispensed in accordance with the one or more selections; and terminate, after the vessel receives the amount of material that is measured and equivalent to the one or more selections, the dispensing of the material into the vessel.